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HomeMy WebLinkAbout2.0 Staff Report BOCC 02.21.05February 21,2005 -BOCC Exhibits for Public Hearing of the plsliminary Plan for Phase II konbridge PUD Applicant - Rose Ranch LLC Staff- Richard Wheeler liffi ffi"Sffi tr..i.. lffiffilifr ffiiffi?ffi]ffi-tiffi $ A Meil Receinls Proof of PublicationB C D Garfietd Cormty SuMivision Regulatio@ E c"rfiAd C;unlv Comorehensive Plan of 2000 Staff Report dat€d 2-21 -06r G Application for Preliminary Plan H I I'r:ttardrrrd1f.2745 from Colorado Geologic Survey J I o++x Aq+cA O1?37-O< from Resorrrce Enqine€nnS K L Letter dated 12-30-05 from Carbondale Fire Protectronlrrstnct M Q+aff Dnurer Pnint Pre.sentation -to be shown at tne heafmg N o I.ettur dat€d t@0 n'om noaring fo* Consertnangy ,, ,,, =;fo Division of Vqdlife. am Taylor P o R Fire Prqltecltion Districts T Emqil Aq+cA 7-1O-Ot6 finm Garfield Countv Road and lrndSe frepar0meNl arrd Znrre Distict Modification For honbridee PLIDU v 5r*rr F. ur. ?. t&*-da"*l 2- ll-l- o 6 w x Y Z BOGC 2-21-06 IRONBRIDGE PUD PRELIMTNARY PLAN - PHASE II PROJECT INFORMATTON AND STAFF COMMENTS TO BOCC APPLICATION: Preliminary Plan Phase ll OWNER\APPLIGANT: LB Rose ranch REPRESENTATTVE: Mike Wilke ENGINEER High Country Engineers ATTORNEY Balcomb & Green PC LOCATION: 3.5 miles South of Glenwood Springs, east of CR 109, west of the Roaring Fork River WATER: Roaring Fork Water District SEWER: Roaring Fork Sanitation District SIZE: 81.38 Acres 173 Lots EXISTING ZONING: PUD 1, GENER.AL PROJECT INFORMATION Property Description: The Applicant is requesting to subdivide the following pariels of lanO pieviously subdivided as parcel, lots, and blocks and identified as within the Amended and Restated Final Plat - Iron Bridge PUD as follows 1. Golf Course Parcel 6, Phase l:35.257 acres 2. Phase Il Future Development (Lots 62-89): 18.28 acres 3. Blocks 1, 2, and 3 Phase Il: 4.98 acres 4. Block 2, Phase lll: 2.613 5. Block 4, Phase lV: 6.59 6. Open Space: 3.53 7. Right-of-way: 9.9 2. Collectively, these areas shall be considered as part of this apptication and shall be referred to as Phase ll Preliminary Plan. The total number of proposed residential lots is 173; the total amount of land is 81.3 acres. The underlying zoning is PUD with specific zone districts as follows: 1. Golf Course 2. River Residential 3. Medium Density Residential 4. Club Villas Phase !! Preliminary Plan property is subject to all applicable terms, conditions, and provisions set forth within the following Resolutions (Reception Numbers): 531 935, 546856, 546857, 646387 ,646388, and 654210. Approval of this application is sought to facilitate the development of lronbridge in accordance with its phasing plan. To allow the platting of 24 on site affordable housing dwelling units, this is an increase of 14 on site units from the original plan. To subdivide for future conveyance to the Roaring Fork Water and Sanitation District the parce! previously identified for the location of the District's proposed surface treatment plant. Provide a different street and plan profile from 40 feet to 26 feet with curb and gutter, within specific areas of the plan. REFERRALS Staff has referred the application to the following State agencies and/or County departments for their review and comment. Comments received are briefly mentioned below or are more comprehensively incorporated within the appropriate section of this staff report Carbondale Fire Protection District: Exhibits L, S Roaring Fork Water and Sanitation: No Comments Roaring Fork RE-l School District No Comments Colorado Division of Wildlife: Exhibit P Colorado Division of Water Resources: Exhibit K Colorado Geologic Survey: Exhibit ! Garfield County Road & Bridge Departmenfi Exhibit T Garfield County Vegetation: Exhibit H Resource Engineering lnc. (outside engineering review for GarCo Building and Planning Department): Exhibit J 3. 4. 5. 6. GENERAL RELATIONSHIP TO THE COMPREHENSIVE PLAN: lronbridge PUD is in Study Area 1 in the Comprehensive Plan. The area is identified as "subdivision". Given that a PUD is a type of subdivision, the applicant's request is in conformance to the Comprehensive Plan. APPLICABLE ZONING STANDARDS AND REGULATIONS: 1. Golf Course Parcel 6, Phase I - Zoned Golf Course 2. Phase lt Future Development (Lots 62-89) - Zoned River Residential l&2 3. Blocks 2 and 3, Phase ll - Zoned Club Villas 4. Block 2, Phase lll, Block 1 Phase ll, Block4, Phase lV - Zoned Medium Density Residential $4:50 PRELIMANRY PLAT MAP: The applicant has prepared an adequate irap meeting all the applicable requirements - this map is included with the application materials $4:60 ADDITIOANL INFORMATION:-1. Protective Covenants, as amended are submitted with the application materials. 2. A phasing plan is proposed at this time. The proposal phasing plan is as follows: o Filing 1 - Block 4 Phase lV Lots 172-2Og and 225, Block 1 Phase ll Lots 297-316, Golf Course Parcel 6 and Future Development Lots 84-89 (2005-2007) o Filing 2 - Block 4 Phase lV Lots 210-224 and 226- 249, Phase ll Future Development Lots 62, 82, 83 (2006-2008)o Filing 3 - Block 2 Phase ll, Block 3 Phase ll Lots 250- 270, Block 2 Phase lll Lots 271- 296 Phase ll Future Development Lots 63-81 (2006-2009) Each tract has access to a public right of way. The proposed ROW width reduction would affect Fox Run Court only and will serve 20 dwelling units, Lots 297-316 - east of the Golf Course Parcel 6. GarCo Road and Bridge Department has reviewed the plan and has no issue with the reduction. Carbondale Fire Protection District has reviewed the layout and has met with applicant concerning the turnaround at the end of Blue Heron Vista. The District has also met with the Applicant regarding the Iocation of the hydrant at the end of Blue Heron Vista. The fire district is satisfied with the turnaround and new location of the hydrant' Several reports have been submitted concerning geologic hazards in the area. As most people are aware there major issues concerning sink holes. The applicant has prepared forthcoming studies specific to the 3. 4. 7. sink hole issue and are part of the application materials. Additionally the Applicant has submitted additional comments in response to the review by ccc. Jonathon white from the colorado Geologic survey has submitted the following comments: "/n earlier reviews from this office and reports from HP Geotech, the major geologic hazards that can impact this development are debris flows, sinkholes and other subsidence phenomena related to evaporite bedrock dissolution (evaporite karst), and collapsible sor/s. Debris flow hazard have been mitigated by construction of detention features in the main drainage channel that the golf caft path follows into the hills to the wesf. We stated our general concurrence with the debis flow mitigation in a review letter to your office dated August 27, 2003 (ccs LUR No. GA-04-0001). The tronbridge development is located in an area along the Roaring Fork River valley that has the highest density of sinkholes in Colorado, and recent spontaneous ground openings occured earlier this year (January Sh1 that damaged the lronbidge golf ctub facitities. Cottapsibte soils are dry, lower density soil where the soil structure col/apses in on itself, /oses volume, and densfies when is becomes wet. commonly called hydrocompactive so4 sorT collapse manifests ifse/f as ground seftlement." 5. Materials submitted by HP Geotech suggest that levels of Radon Gas may be present. The ability to test for this gas is difficult to test prior to construction of buildings. lt is suggested that once buildings are constructed that tests for Radon Gas be done. Typically buildings are vented in lower enclosed areas to mitigate this issue. . 6. A title commitment is included with the application materials. $4:70, 4:80, 4:90, SUPPLIMENTAL INFORMATION Geology and soils: Please see previous comments concerning geologic hazards. Vegetation: The appticant has submitted a vegetation and tree inventory dated June 1997 and February 1998. Letter dated 1-6-06 from the Roaring Fork Conservancy outlines the issues that have come up with clearing of vegetation at lronbridge. The Applicant has agreed to mitigate the problems relevant to critical vegetation that was removed from the riparian area. The Applicant will re-vegetate the area in the spring of 2006 according the Conservancies letter. Wildlife: The applicant has submitted the same wildlife report that was used for the original PUD. lt is staffs opinion the changes proposed in Phase Il is not extensive enough to justify a new study. The Department of Wildlife has submitted a letter 1-6-06 agreeing to the mitigation plan of the riparian area. All wildlife measures will need to be observed as set forth in the original PUD. Drainage Plan: The proposed drainage glan differs from the original plan' The prJposed plan is for gutters in place of ditches and swells' This plan has been reviewed Uy nesojrce Engineers, included are their comments: "Ihe proposed PuD Amendment reiates to a change from roadside grassed swa/es to a storm drain cottection sysfem. The purpose of the -grassed swa/es is to enhance the water quatity of the storm-water runoff. The new drainage plan provides water quatity enhancement prior to disch.arging into the Riariitg fo* River. The revised drainage analysis appears ade.quate and the propoied drainage plan meets the County criteria and the intent of the original plan." Staff is in concurrence. Utility Plan -General: Electric, Gas, Telephone, Cable TV and lnternet Service is available to all proposed tracts' utility Plan - water: water will be provided for by the Roaring Fork water District. Please see Exhibit K. Utality plan - Sanitary Sewer: To be served by the Roaring Fork Sanitation District as approved with the original plan. Fire protection: Carbondale Fire Protection District has submitted written comments, Please see exhibit K. Road/Access Plan: Please see previous comments concerning Rights-Of- way. Easements: All easements and conveyances are shown on the submitted pt"n. and application materials and are consistent with the original PUD. Assessment / lmpact Fees: All fees shall be constant with the original PUD and shall meet all Garfield County, RE-1 School District, and Carbondale Fire Protection District req uirements. 7. SUGGESTED FINDINGS: 1. That proper public notice was provided as required for the hearing before the Board of County Commissioners. Z.Thatthe hearing before the Board of County Commissioners was extensive and complete,-that atl pertinent facts, matters and issues were submitted and that all interested parties were heard at that meeting. 3. That for the above stated and other reasons, the proposed Preliminary Plan is in the best interest of the health, safety, convenience, order, prosperity and welfare of the citizens of Garfield County. 4. That the Preliminary Plan Application is in conformance to the Garfield County Subdivision Regulations of 1984 as amended. 8. PLANNING COMMISSION RECOMMENDATION: Planning Commission recommended approval of the Preliminary Plan for Phase il of lronbridge PUD with the following conditions: 1. All representations of the Applicant, either within the application or stated atthe hearing before the Board of County Commissioners, shall be considered conditions of approval untess othenryise modified by the Commission. 2. The Applicant shall comply with ail drainage, grading, wet construction and geotechnical subsurface investigation for Phase tl, as presented by HP Geotech. 3 A geotechnical engineer shall be retained to inspect and evaluate all raw grading surfaces, cut slopes, ditches, and any other excavations before covered with structuralfill, topsoil, erosion blankets, foundation elements, etc, in order to insure, as best as possible, that visible ground and soil conditions that may indicate local ground subsidence wilfbe discovered and addressed. 2. site-specific foundation investigations shall be conducted for the individual sites. 3. The Applicant shall disclose the potential risks to all future purchasers concerning potential settlement from collapsible soils and risk of spontaneous ground openings related to evaporite karst phenomena. 4. Prior to the Preliminary Plan going before the BOCC, the Applicant shall submit to the State and County all applicable information showing that there is no material injury to existing water rights. 5. Prior to the Preliminary Plan going before the BOCC, the Applicant shall meet with Steve Anthony (Gardo Vegetation) or submits' acceptable materials that clarify the issue of dead trees and snags as it relaies to riparian habitat. 6. Prior to the Preliminary Plan going before the BOCC, the Applicant shall change the design of the turnaround at the end of Blue Heron Vista to comply with the lnternational Fire Code (lFC) Appendix D Section DlO3.4 and change the location of the hydrant at the end of Blue Heron Vista to allow for unobstructed access. 7.The Applicant shall consult with the Colorado Department of Wildlife (if fences will be used) as to posting the property on the open space lot abutting Iots 63-83, so it is clear that there is no trespassing onto the private property east of lronbridge. The applicant shall place the following plat notes on the fina! plat a.'"Colorado is a "Right-to-Farm" State pursuant to C.R.S. 35-3-101, et seq. Landowners, residents and visitors must be prepared to accept the activities, sights, sounds and smells of Garfield County's agricultural operations as a normal and necessary aspect of living in a County with a strong rural character and a healthy ra.nching sector. All must be prepared to encounter noises, odor, lights, mud, dust, smoke chemicals, machinery on public roads, livestock on public roads, storage and disposal of manure, and the application by spraying or otherwise of chemical fertilizers, soil amendments, herbicides, and pesticides, any one or more of which may naturally occur as a part of a legal and non-negligent agricultural operations'" "No open hearth solid-fuel fireplaces will be allowed anywhere within the subdivision. One (1) new solid-fuel burning stove as defied by C.R.S. 25-7-401, et. sew., and the regulations promulgaied thereunder, will be allowed in any dwelling unit. All dwelling units will be allowed an unrestricted number of natural gas burning stoves and appliances." "All owners of land, whether ranch or residence, have obligatiOns under State law and County regulations with regard to the maintenance of fences and irrigation ditches, controlling weeds, keeping livestock and pets under contro!, using property in accordince with zoning, and other aspects of using and maintaining property. Residents and landowners are encouraged to learn about these rights and responsibilities and acl as good neighbors and citizens of the County. A good introductory source for such information is "A Guide to Rural Living & Small Scale Agriculture" put out by the Colorado State University Extension Office in Garfield County." "All exterior lighting will be the minimum amount necessary and all exterior Iighting will be directed inward and downward towards the interior oithe subdivision, except that provisions may be made to allow for safety lighting that goes beyond the property boundaries." "One (1) dog will be allowed for each residentia! unit and the dog shall be required to be confined within the owner's property boundaries." b. d. e. ] f. "There are potential risks concerning settlement from collapsible soils and risk of spontaneous ground openings related to evaporite karst phenomena " 9. STAFF COMMENTS AND RECOMMENDATTON: Staff is supportive of Planning Commissions recommendations. lssues that needed to be resolved prior to this Preliminary Plan going before the board are listed below. 1. Prior to the Preliminary Plan going before the BOCC, the Applicant shall submit to the State and County all applicable information showing that there is no material injury to existing water rights. Staff Comment: Staff has not received any information from the Applicant concerning material injury to existing water rights 2. Prior to the Preliminary Plan going before the BOCC, the Applicant shall meet with Steve Anthony (GarCo Vegetation) or submits acceptable materials that clarify the issue of dead trees and snags as it relates to riparian habitat. Staff Comment: The Applicant has submitted to staff a letter from the Roaring Fork Conservancy concerning the mitigation plan for re-vegetation of the riparian area. 3. Prior to the Preliminary Plan going before the BOCC, the Applicant shall change the design of the turnaround at the end of Blue Heron Vista to comply with the International Fire Code (lFC) Appendix D Section D103.4 and change the location of the hydrant at the end of Blue Heron Vista to allow for unobstructed access. Staff Comment: The Fire District has met with the Applicant to discuss the turnaround and placement of the fire hydrant. 4. The Applicant shall consult with the Colorado Department of Wildlife (if fences will be used) as to posting the property on the open space lot abutting lots 63-83, so it is clear that there is no trespassing onto the private property east of lronbridge. Staff comment: The Applicant has met with the surrounding property ownets and has agreed to post the property. No fences are being proposed so the Applicant did not meet with DOW MEMORAI\IDUM To: Richard Wheeler Fnom: SteveAnthony Re: Comments on the lron Bridgo PIID Phase 2 Resohsion 98-80 has several conditions pertaining to wildlife and vegetation that should be oonsidered prior to final ap4roval of the latest phase (if they al€n't in effect akeady). These conditions start on page 5 and are under Item B. They go in number from I a to I q and finish on lnge 7. Withogt listing them all here,I would suggestthat you reviewthese conditions and evalgate ufuat-you feel is appropriate for this project I would be glad to meet with you and go erough these conditions if you would like. To be briet these conditions in the 98 Reso provide protective measures for wildlife and habitat. frrrirg this past year there was a significant amount of brush and trees cut by honbridge h th; riparian ur* utoog the Roaring Fortc hoabridge feels that-their activities were acceetaSte and that they did violate any of the conditions set forth in pnor resolrtions. One of the conditions that were cause for differe, rt interpretations was Ite,m f on page 6 of Reso 98-80. This states "forbid the removal of trees along the river and the wetland treas mceptfor *otic and iwading spacies-" Ironbridge interpret€d this to mean that the removal of dead trees was acceprtable. HowevJin a riparian setting dead tees and snags ae valuable habitat for birds and for fish. There should be firrther discussion on riparian babitat protection as it pertains 6 this project I will be glad to participate in this. Regardingnoxious woeds, it is st4gested that honbridge continue theirnoxiors wd pJgru-.- The Garfield County Noxious Weeds found on the property are listed below: Cqnadothistle &eye da@ Russianbupteed Russian olive Salt cedar/tamarisk Scotch thistle There is a native shnrb, silver-leaf buffalo berry (Etoigns sheplerdia) that may be confused with the noxious wd, the Russian-olive te @loigns oqustifolia)' The uppU"*t or"Or to be able to distinguish betr*,een the two so that the oative silverJeaf is not managed like the Russianolive. STATE OF COLQRADO COLORADO GEOLOGICAL SURVEY Departnent of Nalural Resources 1313 Sherman Sbeet, Room 715 Denver,CO 80203 Phone: (303)86&2611 Fax (303)86G2461 GA-06-0006 Legal: WY2,SEY4, Sec. 1, W%J:{E%, Sec. 12, TS, R89W December 27,2005 Mr. Richard Wheeler Garfield County Building and Planning Deparffitent 109 8t Street, Suite 201 Glenwood Springs, CO 81601 RE: Geologic Ilazards Review of lronBridge Phase 2, Filing 11 2, and 3. DearMr. Wheeler, COLORADOE-lHI DEPARTMENT OF NATURAL RESCI.IRCES Bill O'Y€ns Govemor Russell George Executrc Dlrector Vincent Mathews Divlsion Direcbr and State Geologist Thank you for the land use application referral. At your request and in accordance to Senate Bill 35 -(1g72)this office hasriviewed the materials submitted by your office. Pertinelrt to this review, we exlmined the following from this submittal: l) Preliminary Geotechnical StudyofproposedkonbridgePhase 2byllP GeotechdatedMay3l,2005 (JobNo. 105 115-4); 2) Pieliminary Geotechnic"t Stoay of proposed recreational facilities dated June 30, 2005 (Job f.io. f OS 115-3); 3) earlier IIP Geotech reports from 1997 and 1998; 4) the revision of Final drainage r.pori foi Ironbridge Phase 2,3, anda by High County Engineering, revision date - July 15, 2065; ,irO S) the ptan sheets on CD-ROM dated tuly 22,2005. Development phases and filing numbers it 'rr" b""n changed since the HP Geotech reports. The HP Geotech Phase 2 r.port only covers portions of fiting I and2. The recreational facility study covers only a portion of nmg 1rio. l. Ttr-e CGS has previously reviewed the entire sketch development when it was previorisly called the Rose Ranch Deveiopment, with the first letter to Garfield County Planning b.purt *t on October 30,lgg7 (CGS LUR No. GA-98-0006). For ease of reading this review, we will comment on the individual filings in separate headings. In earlier reviews from this office and reports from IIP Geotech, the major geologic hazards that can impact this development are debris flows, sinkholes and other subside'lrce phenomena related tqqpEit Debris flow hazard h&ffi&.a (issolution (evaporiteite karst), and collapsible soils. construction of detention feafures in the main DEC 3 C 2OO5 Grrt: .. .., r.,i,iTy BUlli,i,\u i pLr" ;,il.ilNG Ironbridge Phase 2, Page I drainage channel that the golf cart path follows into the hills to the west. We stated our general concrrrence with the debris flow mitigation in a review letter to your office dated August 27, 2003 (CGS LURNo. GA-04-0001). The Ironbridge development is located in an area along the Roaring Fork River valley that has the highest density of sinkholes.in Colorado, and recent spontaieous ground openings occurred earlier this year (January 9'hl that damaged the honbridge golf club facilities. Collapsible soils are dry, lower density soil where the soil structure collapses in on itself, loses volume, and densifies when is becomes wet. Commonly called hydrocompactive soil, soil collapse manifests itself as gound settlement. tr'iling 1 Filing No. 1 is an awkward filing and in two discontiguous northern and southern parcels that is separated by 3l4h of a mile. The recent IIP Geotech Phase 2 rcpott only covers the southern parcel of Filing I and the recreational facility report does not include the residential lots of the northern parcel of Filing 1. Collapsible soils and sinkhole subsidence remain potential hazards for this filing. Recent settlement dishess is occurring at the nearby golf cart CBC tunnel under CR 109 and certain roadways in Phase 1, near the south parcel of filing 1. South parcel The development plan reflects a conscious effort to restrict the introduction of water into the underlying soils in all aspects of drainage design, grading, and preliminary foundation recommendations. The overall grading plan of the southem parcel indicates that significant excavations will occur on the west side, adjacent to CR 109 and the bike path, with cut slopes steepening up to 2 (h):1 (v) to establish level building footprints for the westernmost lots. As we understand, overlot excavation and recompaction of the native soils at both home footprints and roadways is also planned. The drainage design includes underdrains proposed at the base of the steeper cut slope that will route the slope wash and roof downspout flows of the backside of the westernmost tot to designated drainage inlets. Proper drainage from these locations is very important because the potentially collapsible soil is thickest here and undue wetting of the subsoils must be avoided. Preliminary foundation recommendation by HP Geotech also incorporate mitigation of potential hydrocompactive soils, and their own surface drainage recommendations address thern as well. A commendable effort was made to determine the condition of the evaporite bedrock for the western portion of this southem parcel, which included an expensive drilling investigation progam not usually seen for residential development investigations. The HP Geotech report indicates that no appreciable voids were encountered. There is still risk (likely small) that subsurface voids may occur in the intervening areas between the boring locations. For those larger lots at the riverbank along River Bank Lane, potentially collapsible soils are minimal or very thin but sinkhole hazards and piprng soil hazards may still exist. We concur witlt HP Geotech that additional lot-specific subsurface explorations should be conducted for lots 176 and 177 near a sinkhole mapped in the earlier 1997 study. Ironbridgc Phase 2, Pagc 2 North parcel The northern parcel is located adjacent to the existing clubhouse and golf course maintenance facility on the main alluvial fan of the development. Collapsible soils will be a prevalent geologic hazardfor this development, as well has.risk from evaporite karst that can manifest itself as a spontaneous ground opening and potentially dangerous sinkhole formation. The residential portilns of the property lie within 150 feet from a large,4O-foot wide, sinl:hole that damage the gotf cart storage facility and reportedly "swallowed" one or two golf carts on January qlzoos.-rhe CGS investigated this sinkhole shortly within days of its occurrence (See photo). According to the IIP Geotech re'port for the recreational facilities, another smaller sinkhole also opened nearby on MaY 2005. We understand these new sinkholes were mitigated using compaction grouting techniques. As far as we know, the northem parcel did not receive the level of subsurface investigations into bedrock that the southern parcel of Filing 1 and the recreational facilitY did. We believe that, with the recent nearby occurences of two spontaneous sinkholes (generally ararephenomenon even in the evaporite karst terrain of the ioaring Fork River valiey), and other historic sinkholes mapped in the area from HP Geotech's 1997 rJport, a similar levll of subsurface investigations is warranted. We believe the risk of subsidence is more elevated here than in other areas of the Ironbridge Development. Filing 2 Filing 2 includes the remaining lots along River Bend Way adjacent (north of) to the subsurfacl conditions to be similar to the south parcel of Filing l: thicker potentially collapsible soils uphill toward CR 109 and near surface terrace gravels near the river bank. Much of the recommendation in the Hp Geotech report for Phase 2 would also pertain to this filing also. A grouping of known sinkholes has beenavoided between lots 83 and 84 near where detention pond D2 is planned. Photo # I . January g , 2OO5 sinkhole at Ironbridge golf club facility' Ironbridge Phase 2, Page 3 Filing 3 Filing 3 includes the remaining riverside lots, and higher density parcels on both sides of konbridge Drive (below the club house and proposed recreation facility) that will be served by Blue Heron Vista, River Vista, and Eagle Claw Circle. The major mapped sinkhole in Filing 3 is near the river bank. The lot 63 building footprint encroaches into the edge of this mapped sinkhole. As with the northern parcel of Filing 1, no additional geotechnical work has been done in Filing 3 since 1998. Closing comments In closing, we are puzzledthat additional recent in-depth subsurface investigations have only bee,n conducted for two parcels of Filing I and2 of Phase 2. We believe a similar in-depth subsurface investigation is warranted for the northern parcel of Filing I if it hasn't been completed already. As stated above, this residential site is closest to the sinkholes that spontaneously opened in early 2005. Other lots in proximityto mapped sinkholes should also have the same level of subsurface investigations. For the rernaining development plan, the potential geologic hazards and conditions inherent to this site have been suitably addressed, and the risks suitably low ifproperly engineered, so the CGS believes that the development can proceed, conditional upon the following provisions: l) The drainage, grading, wet utility construction, and geotechnical recommendation are complied with; 2) T\e same level of geotechnical subsurface investigation is completed for the northern parcel of Filing I as was done in the recent 1995 reports for other parcels by HP Geotech; 3) The geotechnical consultant is retained to inspect and evaluate all raw grading surfaces, cutslopes, ditches, and any other excavations before covered with strucfural fill, topsoil, erosion blankets, foundation elements, etc. Such an inspection by a knowledgeable engineering geologist or geotechnical engineer will insure, as best as possible, that visible ground and soil conditions that may indicate local ground subsidence will be discovered and appropriately addressed. We believe this inspection is so important that the county should consider making it a development requirernent; 4) Site-specific foundation investigations are mandated for the individual sites; and, most importantly; 5) There is adequate disclosure of the potential risks to home owners concerning potential settlement from collapsible soils and risk of spontaneous ground openings related to evaporite karst phenomena. Prospective home and lot owners must be made aware that normal homeowner's insurance does not cover damages related to ground movements, including naturally occurring sinkholes. Ironbridgc Phasc 2, Pagc 4 If any interested party has any questions about this review letter, please contact this office at (303) 866-35 5 I or e-mail: jonathan.white@state.co.us Sincerely, Ironbridge Phase 2, Page 5 =::!iFIESOUFICEIIIIII_TTTE N G IN E E FI IN G IN C Consulting Engineens and Hydnologists sD- M $*flcE:,jr;I) Mr. Richard Wheeler Garfield County Building and Planning Department 108 Eighth Street, Suite 201 Glenwood Springs CO 81601 December 27,2005 RE:lronbridge PUD Amendment and Preliminary Plan for Phase 3, Filings 1,2, and 3 Dear Richard: At the request of Garfield County, Resource Engineering, lnc. (RESOURCE) has reviewed the PUD Amlndment and Preliminiry Plan Submittal for the lronbridge project. The submittal included two three ring binders dated July 2005 and a set of drawings containing 63 sheets dated August 25,2005. Thl general technical analysis for the whole project was completed in 1997 anO lggA and previously updated in 2003 for the last PUD amendment and Preliminary Plan submittal, ln addition to the original technical reports, the most recent submittal includes a new drainage plan, geotechnical analysis specific to the proposed development areas, and the updatel infrastructure design drawings for the Phase ll submittal. Our comments are presented below. PUD AMENDMENT The proposed PUD Amendment relates to a change from roadside grassed swales to a storm drain'coilection system. The purpose of the grassed swales is to enhance the water quality of the stormwater runoh. The new drainage plan provides water quality enhancement prior to discharging into the Roaring Fork Rivei. The revised drainage analysis appears adequate and the profos-ed drainage plan meets the County criteria and the intent of the original plan. The change in drainage conveyance also includes a change in the road cross section. The new road sectibn has two 12 foot lanes with curb and gutter. This design is not consistent with the County standards in Section 9.35 of the Subdivision Regulations. The road section is consistent with th-e interior roads at Battlement Mesa with no on street parking. A variance in road section is typically requested in a PUD and should be specifically noted in any approval of the project. PRELIMINARY PLAN Water RightsMate r Su pply The project is included in the Roaring Fork Water and Sanitation District (RFW&SD) and will exterid ihe central water system constructed in Phase l. Adequate water rights have been adjudicated in Case No. 96CW319 and 97CW236, and 00CW019. The Applicant has received a letter of "No Material lnjury" from the Division of Water Resources. The proposed water distribution system design is consistent with previous approvals and will be reviewed and approved by the RFW & SD. Wastewater Wastewater will be collected and pumped to the RFW&SD regional wastewater treatment facility. The lift station was constructed as part of the Phase I improvements. The collection system design is consistent with previous approvals and will be reviewed and approved by the RF1 , & DEC z I ;:rlrl5 9O9 Colonado Avenue I Glenwood Spnings, CO El1601 I t97O) fr, l,lx*t?rr. ;, t,. ^r ry s45-6777 . ."iu'+ts E'4E.-',1137 Mr. Richard Wheeler Page 2 December 27,2005 Drainage As discussed above, the overall drainage analysis and plan is adequate for the proiect. We recommend that the maintenance plan referenced in Section 9.6 of the covenants (and likewise the text of this section) be updated to include the ponds and outlet structures. A Stormwater Management Plan has been included which provides contractors with a step by step guidance document for compliance with the State regulations and County approvals' Section 404 Permitting There does not appear to be any new wetlands/Section 404 permitting issues for the project. Soils/Geology A geotechnical study focusing on the proposed Phase 2 project was compleled by H.P. Geotech. fnl Uay 31,2005 report is consistent with previous studies that indicate a site specific geotechnical study and foundation design should be submitted with the building pgrmi! ipplication. Plat Note No. 5 should be modified to reflect the more specific requirement listed above. Lots 176 and 177 are adjacent to an existing sinkhole. Consistent with the H.P. Geotech report, additional subsurface exploration should be conducted prior to any final plat approval. Roads The internal road design changed from a typical driving lane, shoulder and ditch to a lane with curb and gutter to collect storm water runoff. As mentioned above, this road section is not consistent with County standards, but an acceptable design for urban density areas. Please call if you have any questions or need additional information' Sincerely, rNc. 885-16.0 E:\Client\885\1 6.0 lronbridge\rw amendment to prelim 885.doc Michael :!!:! FIESO U FIC ErII'I-----E N G I N E E R I N G I N C STATE OF COLOTUDO OFFICE OF THE STATE ENGINEER Division of Water Resources Department of Natural Resources 1313 Sherman Street, Room BlB Denver, Colorado 80203 Phone (303) 866-3581 FAx (303) 866-3s89 www.water.state.co. us Bill Owens Govemor December 27,2005 Richard Wheeler Garfield County Building and Planning Department 108 8th St Ste 201 Glenwood Springs CO 81601 rECSo itiiitt r,.i ,.r .. ,.: ,-. Hal D. Simpson, PE. 2005 state Ensineer :,-;ri]"Y .'rl'l\f Re: lronbridge Prelimlnary PUD Phase ll Secs. l, z, & 12,T75, R89w, 6h PM and Section 35, TOS, R89W, 6th PM W. Division 5, W. District 38 Dear Richard: We have reviewed the above-referenced proposal to subdivide a parce! of approximately 81.384 acres into 173 residential lots with one single-family dwelling on each lot. The applicant proposes to supply water through the Roaring Fork Water and Sanitation District (District). Sewage disposal is als6 to be provided by the District. A letter of commitment was not provided. The lronbridge PUD AmendmenUPreliminary Plan was previously approved in ourAugust 6, 2003letter, which detailed certain water rights that w6re to be dedicated to the District pursuant to a pre-inclusion agreement, which was provided with the 2003 submittal. Please explain how the current proposalrelates to our past review. Pursuant to CRS 30-28-136(lXhXlt), a municipality or quasi-municipality is required to file a report with the county and the State Engineer documenting the amount of water which can be supplied to the proposed development without causing injury to existing water rights. A report of this nature was not included. See the Guidelines for Subdivision Water Supplv Plan Reports (online at www.water.state.co.us/pubs/policies/memo_subdivisions.pdf) for the necessary information. Since insufficient information was provided, we cannot comment on the potentialfor injury to existing water rights under the provisions of CRS 30-28-136(1)(h)(ll). lf you or the applicant has any questions,concerning this matter, please contact Cynthia Love at this office for assistance. :il' :..r,r,:' :".,.'Ji,1.il.l:. l':lr.'. . ..'r.'::.i::,^,-,;'..r..r-l:-,' .,,, ",ff:l3rtJ , ., 'il dUt-/C.lUtronbridgePhaselt.doc' I " " ,. ..': . '..: , ,, I.,"..-,,-,, t- I,,.. .., , , ', ' cc: Alan Martellaro,'Division Engineer, Division 5 Bill Blakeslee, Water Commissioner, District 38 Craig M. LiS, P.E. .REDg\, 3) )A December 30,2005 FIRE.EMS.RESCUE RECEIVED JAN 0 S 2006 'ffi,Iff8r'8ffiru Richard Wheeler Garfield County Building & Planning 108 8th Street, Suite 201 Glenwood Springs, CO 81601 RE: Ironbridge Preliminary PUD Phase II Dear Richard: I have reviewed the application for the proposed Ironbridge Preliminary PUD Phase II. The application was reviewed for compliance with the International Fire Code (IFC) 2003 edition, adopted by the County. I would offer the following comments. Access Tf,.-propored access within the subdivision generally appears to be adequate for emergency apparatus with the exception of Blue Heron Vista. The turnaround at the end of Blue Heron Vista appears to be inadequate for fire apparatus. Tumarounds should comply with IFC Appendix D, Section D103.4. Water Supplies for Fire Protection The proposed water system and fire hydrant layout generally is adequate again with the exception of Blue Heron Vista. The hydrant indicated at the end of Blue Heron Vista has been placed in an area that would be blocked by parked cars. Impact Fees The development is subject to impact fees adopted by the District for the proposed new residential units. This payment is due prior to the recording of the final plat. Fees are based upon the per lot impact fee adopted by the District at the time the agreement is executed. Please contact me if you have any questions or if I can be of any assistance. Bill Gavette Deputy Chief Carbondale & Rural Fire Protection District 300 Meadowood Drive . Carbondale, CO 81623 '9701963'2491 Fax 963-0569 HIPWORTH - PAWLAK GEOTECH NICAL JHt\-Zrb-zzlutb 14:5u H_P GEOTECH P.ZL/42 .Ianuary 6,2006 L. B. RoseRanch LLC .Atur: Dirk Gosda 410.lronbridge Drive Glenwood Springs, Colorado 81601 SuQiect: Sincerely, HEPWORTH Stever L. SLP&swcc:' D I'l.,prvc,rrh -i)aru[3[ ( ir:tti r r:i:: r ieai, [nc. 5C20 Ciounn'i(<nd J.54 Cilcnwoocl Sprir tr:s, Co[o.nrri., li I ciCl Phorrc: 970"94i'?96$ Fiu' 97().9{5'Mi4 crrrail: hpgu r@[prgcotrrh.' i,r: r Job No. 105 ll54 Reqponse to Colorado Geological Survey and Resource Engineering Review comments, Proposed konbridgePhase 2, Garfield county, Colorado Dear Mr. Gosda: Ai r-equested, wo are providing adtlitional comments in response to th'e revi0u/s madeby ii; g;ilrrdo'o*roe,*i b;;y acc_sj and Rexrurce En-ei;eering (R[,) ror ihe s'$mittal of theproposed devElopment to Garficld Courty' The cGS (2005) provided suggeqtiory fglthu -appr.gval lf q" dwelopmenl.that includcd "aai,i*a'iiprJrfi;;il;it6 aud 177, evaLiatiou of subsurface conditions inthe ;;r$ p*;f'f ili"t i-*aTfo.subsidenccp.otmlid, y$;jte-s99cific geoteehnical recommendations ror raA, for rfr" optoratioa Et Lots 116 and177 is intrntrgr-ess. The lirc:lr."iri" g"oitt"i-*Gcommenditious will bl.pyovid^ed at the time of buildiag aJ.ii,fu"o*rlibii<rn. d*iuation of nibsurfsce conditions ft:r subsidencc poteatial in addidon to those *ra".t.J-Uy uepworth-Pawlak Geotechnical has been cortducrcd by BryFnt Consultants (2005a and 2005b). RE (2005) suggestpd that sit+,specifc studies be conducted for each lot aod t}at-"oam*j.ip"r[irti"" u. J"raii.t O ,t Lots 176 arLd,l77 as prwiously discussird. The site ,p"Cin. r*orii"r.nartio"sioi the lots in the xruthern part of fili,g 1 (H9pw.rtb-Pawlak 6;6hrri;ui, ioosj *ii[Li porro*ed at the time of foundation excavatiorr since the eotire areawill U. *i u"a nfi grAra durqg the infrastructue cotrstruction for.the ;fi|.';,ir* ln ur other lots, a sit" qpecifiE snrdy for geotechnical recommentlations wiII bc perfonned. lf ylu have any queStions Or need additional assistance, please lct us know' cAL,INC. - Attr: Matt Langtrorst w7r416222 : kx",*, Prnt;; ii,?i-ii,-?,Jrr^ .'':"lfliigp*springs 7ts'673'5s62 ' Sirverrhorne e70-468-1e8e JAN-a]6-2E,A6 74139 GEOTECH P.A2/A2 L. ft Rose Rancb, LLC Jaruary 6,2006 Page 2 Refcrences Bryant Consultants, 2A0Sa, Geophysigql/Geotechnlcal lxplgration for !!l Recreation- Center erei ,k Loti Zgili O Ph*se I, Block 4, Th; Ironbridge Golf Club and Community, it7 lronbrtdge Drive, Glenwood Springs, Colorado, Pr<rject'No' 05' . 277, datcd December212005. Bryant Consgltauts, 2005b, Geophysical/Geotechnical ErPloratictn.for PhYf I!, Block 4.' The lronbrfdye GriJ Ct"b ind Communtty, 4|llronbridge.Drive, Glenwiod Springs, C ol5 rado,- Proj ect No. 05-277c, dated Deccmber'l 4, 200 5. Col.orado Oeological Survey, 2005, Creologic Hazards Revisvt'otlronbridgc I'hase 2, . FitW l,-2 and 3, dttedDeceirrbcr 2?'2005. Hepworth-Pawlak Geotechnjc ^l,2OO,5,Preli.mtn3U-G,e9t9chnrcat-ftudy, Prafios,od---5 lionbrtdge phase 2, Comty lload 109, Garfield Coanty, Colorado, Joh No. I05 11 s4,dated MaY 3 I, 2005- Resonrce Engiaeerin g,Z}}5,Ironbridge PW Amendment and Prelimincw Pianfor Phasi 3, FilW I, 2 and 3, dated Decembor27,2005' Job ,\o, 105 I f S-4 Received Time Jan,6, 3:27P]r,l TYPICAL 24 ROAD SECIION R'\ER BEND...WAY. P}NYON COURT. RED BI-UFF ,VISTA AND BENT GRASS DRI\E TYPTcAL 20' RoAp sEcron ffip*,t-aam Fox RUN COUST AND RIVER BANK LANE --*' 'f'Y::3---r---! r- ffi Ironbridg. Phasing Plan r Three Filings are proposed for Phase ll Pl-lAsE I GOLF CCIU.*SI FARCIL 6 11 _Ji *--*.$1g6..- I 12 Ro^q.RrNc Fonx CoNSnRvANCY January 6,2006 David |oseph LB Rose Ranch, LLC 1007 West Bank Road Glenwood Springs, CO 81601 Dear David, The intent of this letter is to serve as documentation for an agreement made between Iron Bridge and the Roaring Fork Conservancy (Conservancy) in November of 2005 regarding mitigation for vegetation removed along the Roaring Fork River. A preliminary site visit on November 1,6,2005 inctuded John Groves, Colorado Division of wildlife; Mark Bean, City of Glenwood Springs; Steve Anthony, Garfield County; David Joseph, Iron Bridge; and myself. At the close of this site visit, several impacted areas were identified for mitigation through re-vegetation and/or re-seeding of native species. In a subsequent site visit on November 30, 2005, David Joseph and the Conservancy met to discuss the details of the mitigation effort, slated for spring 2006.Iron Bridge agreed to commit approximately $5,000 to the mitigation effort. This will cover costs of purchasing native vegetation from Rocky Mountain Native Plant Company, purchasing native seed from a regional supplier, purchasing and installing silt fence or other erosion control barrier, planting and seeding by Iron Bridge staff., and consultation time and project report provided by the Conservancy at a rate of $55/ hour. In additiorl Iron Bridge will guarantee the plants for a period of two years from the date of planting, and continue to manage noxious and invasive vegetation on site. The Conservancy will conduct an extensive site visit in spring 2006 prior to the re-vegetation effort. We will further inventory the vegetation on site, identify additional areas in need of mitigation, develop a plant and seed list, and a planting and seeding plan for Iron Bridge to follow. All parties noted on PO Box 3349 l< Bosolt t( CO t( 8162] 970-927-1290 a ]( 970-927-1264 Fox t< Emoil: info@rooringfork.org November'l.,6,2005, two large areas were scraped to bare ground, and will require a native seed mix and erosion control barrier. In addition, 6live cottonwood trees were unnecessarily removed, and will need to be replaced with native narrowleaf cottonwood. Additional pockets of native shrubs were also unnecessarily removed, and will need to be replaced with native Silver Buffaloberry. Finall/, the Conservancy will work with Iron Bridge to provide a strategy and a commitment for future protection of the riparian area on the part of the developer and future lot owners. If you have any concerns or comments, please feel free to call me at (970) 927-1290, or e-mail at rick@roaringfork.org. Sincerely, 'g?,hl--J d{ 9,rt,., dfr Rick Lofaro Executive Director PO Box 3349 l< Bosolt l( CO ]< Bl621 970-927-1290 a ]< ?70-927-1264 Fox l< Emoil: info@rooringfork.org STATE OF COLORADO Bill Gnens, Govemor DEPARTMENT OF NATURAL RESOURCES ffiDIVISION OF WILDLIFE AN EOUAL OPPORTUNTTY EMPLOYER Bruoe McCloskey, Direcior 6060 Brcadway Denver, Colorado 80216 Telephone: (303) 297-1 192 January 6,2006 David Joseph LB Rose Ranclr, LLC 1007 West Bank Road Glenwood Springs, CO 81601 DearDavid Please accept this letter as record of the agreement made between hon Bridge and the Roaring Fork Conservancy in conjunction with the Colorado Division of Wildlife and Garfield Cognty in l.iovember2005- On Novembet 16,2005 asite visit was made with Rick Lofaro of the Roaring Fork Conservancy, Steve Anthony and Mark Bean from Garfield County, David Joseph of hon Bridge ind myself to discuss conceflls related to the removal of vegetation along the Roaring Fork River and mitigatioo ,,,.**"r. During this site visit several disturbed area were identified thaineed to be reseeded with native vegetation. It was agreed upon by all parties ttrat hon Bridge and the Roaring Fork Conservancy would do an inventory of the site to identify live native vegetation that was removed and develoi a mitigation plan. The Conservancy will take the lead role in working with Iron Bridge to develop ana imptement tfre agreed upon plan. This agreement is satisfactory to the Division oiwitAm" reiarding ilri, -utt"r. It is important that Iron Bridge work with the Conservancy, Garfield Cognty and the Colorado Divisionof Wildlife to protect the riparian area into the future. Please feel free to contact me regarding this matter. (970) 947 -2933. Sincerely John Groves District Wildlife Manager Carbondale DEPARTMENT oF MTURAL RESOURCES, Russeil cieorge, E:<eortive Direcnor I WLDUFE Cottfftll&sloN, Jeffiey crarvfrrd, Ctnir o Torn au*e, vrettralr o Ken Tores, Secretaryi'arrsane Fbmarl FUr{r r Flinlc trncfrrvn r Philin .lamac r nhir. n Nml . nJ p}r"i* .-piliiliillu* 1l January,2006 To; Garfield County Planning andZoning Commission From; Tom and Joan Dykema 0267 County Road 167 Glenwood Springs, CO 81601 Dear Commissioners, I am writing to ask your cooperation in addressing a property line situation existing along my west property line contiguous with the Ironbridge development. There are several issues that should be addressed; o The prcperty line being discusSed is one that is common to six (technically sev@n properties counting Gardher's split ) property owners on County Road 167, We are referred to as owners 6,7,8,9,10,11,12 on the plans before you tonight. Our properties extend onto the west bank of the Roaring Fork River. r The plans before you tonight seem to indicate that the Ironbridge development has been designed around some portion of riverbank as can be inferred from the plan, especially Page Plan- 02, but the whole concept is very unclear and lacking detail.e As this project has made its way through the approval process there has never been a ful1discussion of the issues raised by the existence of this slice of riverbank. The time to finally deal with this situation is now. o One of the issues before you in this plan is site drainage. I ask that you require the developer to specifically address site drainage in relation to the riverbank owned by me and my neighbors.o I, as a property owner, have great concerns about continuing incidents of tespassing on my property in spite of it being fenced and posted. I am concerned about liability and I can say that my neighbors are concemed also, having spoken with them. I believe that the developer should be required to provide their plan for control of trespassing and a statement of how they intend to treat us as neighboring property owners.o Perhaps one step the developer could take would be to provide full properly corner staking and a recorded survey for each of the parties given that the developers engineer has all of the data incorporated into ttreir plan already.o In surlmary, I ask that the Planning commission and County Commissioners take all actions possible toward bringing some clarity to a slightly murky situation. Thank you for your consideration. Tom Dykema 4**nfu Joan DykeqqV*41* II JAN06 FROM: Suzanne Dameron & Sam Taylor 0383 County Road 167 Glenwood Springs, Co. 81601 TO: Garfield County Commissioners DearCommissionery Unforhmately, wo are unable to atOend the meeting to be held on Jan. Ilft, 2006 concerning the development of the Rose Ranch and honbridge. However, we would like to present concens that we havo about the developme,nt because we own poperty contiguous to the proposed development. Our lan4 as well as many of our neighbors lan4 sits on both sides of the Roaring Fork River. Orn house is on the East side of the River but the West side of the River has been Oaditionally used as a buffer zone between our living quarters and the land used by the Rose Ranch and now konbridge. This buffer zone was fenced so that cattle could not get donm to the River avoiding danger along tte River and keeping &em on the Rose Ranch and not lefring the,m wonder onto our private property. Recently, this buffer zone has providod for critical udldlife habitat for deer, elk, coyote, red foxes, bald eagles and many species of waterfowl and other birds. We believe that it is important to maintain this buffer zone not only for the benefit of the wildlife but also to continue with our qqality of life that we have experienced by owning land on bo,th sides of the River. Previously, when development talks initially began, we as home owners were asked to sell the section of land sitting on the Wost side of tho River. We refused in order to maintain this buffer zone. Drning negotiations, we wore promised that if developme,nt occurred, thene would continue to be a fe,nce seearating the dovelopmeirt and our westerly properties. In addition, we would have access to our westem side of tho river, througlr the developmen! from the west side. Our concern is that, recently, these promises have not occurr€d. Io hct blatant disregard for our property rights has ranspired in onder to access our western side of the River by the new development. Some of the violations and discrepancies will be noted as follows; The old fence bordering The Rose Ranch aud fte wesbrn edge of orn properties has beeir torn dorut and all signs of haditional bormdaries have boen removed" New survey markers have been set up that do not coincide with previous surveys of our properties. honbnidge personnel and sub contractors employed by honbridge have tespassed on nu6erous occasions. The Garfield Cormty Sherifls office has been notified but the re,moval of the old cattle feirce makes it difficult for an officer to determine exact boundaries. We are extnemely concernod about the new development, marketing lots, offering river frontage and river access. Not only is this false but we bslieve it enoourages firther fiespassing. During the sunmrcr of 2005, honbridge removed vegetation along the Nver, which destnoyed valuable wildlife habitat and took down several large tees that bald eagles used for fishing feeding, and resting along the River, on a frequelrt basis. While clear-cutting ftis vegetation, the sub+ontactors were unsupervised atrd fieqpassed on many occasions and cut vegehtion on our properties. We have also witnessed them chasing the elk with vehicles and disturbing them in there habit while bedded dorryn and grazing. Thankyou foryorntime and consideraion in this matter. Sincerely, Richard Wheeler From: Sent: To: Subiect: Bill Gavette [gavette@carbondalefi re.org] Friday, February 10, 2mG 8:14 PM Rk;hard Wheeler lronbritlge SubdMsion - Blue Heron \fista Richard, I had a discussion this past week with Scott Gregory of High Country Engineering regarding the fire hydrant locatioit and the turnaround configuration on the proposed BIue Heron Vista road. lie agreed on an alternate location for the fire hydrant at the end of Blue n"."" viit". Aft6r our discussion, r am comfortable with the proposed turnaround for Blue Heron Vista. please contact me if you have any questions or if I may be of any assistance. Bil-I Gavette Deputy chief Carbo;dale & Rural Fire Protection District www.carbondalefire.org Message Page I ofl Richard Wheeler Frun: Carolyn Dahlgren Sent Friday, February 10, 2006 10:33 AM To: Rk$ard Wheeler Su$ect Fll\f lrcn Bddge SuMivisftrn -08[nal message--- Frcm: Jake Mall SenE F*by, Febn ary 10,2006 10:25 AItl To: Carotyn Dahlgen $Uect: Iron BrHge Subdhrisirn Carolyn: Garffi Cqrnty Rd & Bridge D,epartnent has no proHem uffii the reducfion of width of the inbfnal road system to 2&tsetwidewihin the lron Bridge SuMivisbn. Jake B. Mall Adminisfi ative Forernan Garfidd Gomty Road & Bffige tlept A$D0CI,6 FEB-l 7-06 l4:39 .FR0M-Colo Div of lllatar Rasourcss +3038663589 T-700 P.002/002 F-l 35 STATE OF COLOTUDO OFFICI OF THE STATE ENGINEER Division of \ rbter Resources Department of Natural Resourcos '1311 Sherman Street, Room 818 Denver, Colondo B02Ol Phone (1103) 86&,3581 FAX (303) 865.35E9 tit ww.wEEr,5tate.€q. us Blll Opem Govfinot Eu*cll Gcoryu Erccutlve Dheqoi Hcl D,slmpsn, PE. Son Englnirer February 17,2006 Richard Wheeler Garfield County Building and Planning Department 108 8th St Ste 201 Glenvyood Sprlngs CO 81601 Re: lronbridge Preliminary PUD Phase 1l Secs. 1 ,2, &12,T7S, R89W, 6m PM and Saction 35, TOS, R89W,6m PM W. Division 5, W. District 38 Dear Richard: We harre reviewed additlonalinformatlon regarding the above-referenced proposalto subdivide a paroelof approximately 81.384 ae,res into 173 residential lots with one single-family dwelling on eadr lot. The applicant proposes to supply vlrater through he Roaring Fork Water and Sanitation District (District). Sewage disposal is also to he provided by the District. A letter of commitment \,/as not provided. The lronhridge PUD AmentlmenUPrcliminary Plan was previously approved in our August 6, 2003 letter for a possible 302 resldential units, in accordance with an augmentation plan decreed in Case No. 97CW236, vt,hich allowed for a development with no more than 550 EQRs. A February 15, 2006 letterfrom Thomas J. Kennedy, P.E., of Zanoanella and Associates, lnc. states that the plan approved in the August 6. 2003letter included 82 residential units designated as lrorrbridge Phase l. The cunent application for lronbridge Phase ll includes 173 residential units. The combined 255 units for Phases land ll are prcsently allocated 382.5 EQRs, with eaclr residential unit averaging an assumed 1,5 EORs. The Fehruary 15, 2006 letter also indicated that lronbridge has assigned 5.2 AF of their West Divide Water Conservancy District Water Allotment Contract No, 970923RF!(a) (out of a tota! 51.0 AF) and 17.5 AF of the consumptiv€ use credib adjudicaled in Case No. 97CW236 (out of a total of 76.4 AF) to the Distrist to fully augment the out-of-priority deplations associated with the in-house and outside potable water use within the PUD. Basecl on the above, and pursuant to CRS 3G28-136(1XhXl), it is our opinion that the pnoposed water suppty can be providad without causing material injury to decreed water rights, and is adequate, so long as the plan fur augmentation is operated according to its decreed terms and conditions. !f you or the applicant has any questions conceming this matter, please contact Cynthia Love at this office for assistance. Craig M. Lis, P Water Resourc CMUCJUlronbridge Phase ll ii.doc cc Alan Martellaro. Division Engineer, Division 5 Bill Btakeslee, Water Comrnissioner, District 38 Sincerely, Water Resource Engineer FEB-l i-05 .14:30 FR0M-Colo Div of Water Rasources +3038663589 T-700 P.001 /002 F-l 35 ETATEOFCOI-ORADO OFFICE OF TIIE STATE ENGINEER DMslon of Water Resources DFpaftnent of NetJral R6sources 1313 Sheman Steel Room 818 Denwr, colorado 80203 Phme (309) 86S3581 FA)( (30s) 6Bes58e llf,prtwvrlrv,u6tEn Elats. eo,ua FAX GOVER SHEET PLEASE DELIVER THE FOLLOWING PAGES TOI Blll o,6ns Gowmor Ruerall Georyp B€cqrive DllEcEr l{al D. slmg8on. P.E. stalo En0ho0f TO: OFFICE DATE: Richad l,llheeler Garfield Coqnty Euilding and Planning Deparfnent February17,2ll06 FADC 90484.3470 FROM: C]ffila Low PHONE: 303.866,9681 FAD(: 303$6&S6EO TOTAL NUMBER OF PAGES INCLUDING CO\ER SHEET: B Urgent BI For Your lnformatlon tr Please Reply E As Requested It you do not teoalve all oil the pages as lndicated or the quallg ls unrcceptablc, pleasa call us beclr as soon as posslble. Telephonu (Stt3) E6ffi58l Fax numben (303) 8664589 ME$SAGET Revised oplnlon letter for lronbridge Preliminary PIID Phsee II. We were contacted by Srra Dunn of Balcomb & Green, snd she provided additionol infornrstion regarding this projecr Shc also stf,ted tbrr this proiect is going belorc the County agsin on Tuosday. Fobrurrv 2I. Pteaso mll i[ vou htrye unv qucstious. RECEIVED FEB I 7 2006 tti-T,1,?.*".?,Y^IJJ !9xm 13:53 FR0[l-Colo Div of Watar Rgsourcas +3038663589 T-253 P 00l/002 F-816 STATEOF'COLORADO OFFICE OF THE STATE ENGINEER Dlvlelon of Water Resources Depaflment of Natural Besoutces 1313 Sherman Sheet, Room 818 tJen\rer, colorado 80203 Phone (303) 06&3Ii81 FA)( (303)86&3569 lltlp://{uurn waler. ElEtB.co.{6 FAI( COVER SHEET PLEASE DELIVER THE FOLLOWING PAGES TO: TO:RlcfiardUrheeler OFFICE: Garffeld County BuiHing and Phnning Department DATE: December27,flXl5 FAX 9m384"9470 Blll olmfis Goromof RFdeoo'tc Becutfus oallclor llel D. Slr4ron, P.E. SEE Eng[n6of FROM: CJrrrftlaLove PIONE: 300{86.S581 FAX 3(Xt466*3589 TOTAL Nl..[rrBER OF PAGES INCLUDING COVEF SHEET: 2 ts Ulgent El For Your Informatlon- E Pleaee Rbply tr .As Requested . r . .: ' lf you do not rccelve all ol the pagc$ aE Indieated or the quality ls uniecaptahle, plcaic eall us back a* roon aa pocalble, Telcphone (SO3,866.858'l Fax numher: (303) 856€5Eg MESSAGE Oplnlon letter for Ironbrldce PrcIimiaarry PIJD Phase IL $RmCjTf\.EI) ?Ec 2 ? 2005 GA^,t.i , r r", ,.r -eUril ,,,_*rf;',|,#,H Mr. Richard Wheeler GarfieE Conty BuiHing and Planning Departnent 108 Eightr S&eet Suite 201 Glenwood Springs CO 81601 December 27,200s RE:lnonbrirlge PUD Amendment and Preliminary Phn br Phase 3, Filings '1,2, arff3 Dear Rhhad: At the reqrcst of Garfiekl County, Resource Engineering, lnc. (RESOURCE) hasrwiarcd the pUD Am6ndment and Preliminiry Phn Submind br the lronbridge project The submittal induded trc trree ring binders OatLO luty 2@5 and a set of drawings containing GilCteets dabd August ZO,2W5. ffrl general Ectrnical analy$b fur trq-1[role proiect was comptebd in 1997 ani tggA and previousi-y updated in 2003 foi Ure hst PUD amendment and Preliminary Phn suryni6d. tn adOfion to-fre oQinal technical rcports, the most recent submittal includes a new drainqe plan, geotectrnical aialysis specific to he proposed development areas, and he updad irinasinlcture design drawings f6r the Phase lt submittal. Our commenB are plesented bebfl. PUD ATENDTEI{T Tfe prWced PUD Arnendment relates to a clrange frsn rmdsftle grassed sunales b a sbnn Orain coibc*bn system. The purpose of the grassed swales is to enhance the waEr quahty of the sbnrnyabr runof- The nef,, drainage plan provides water quali$ enhancement prbr to disdrarging inb he Roaring Fork River. The revised drainage analysis aPpears adequate ancl ttre propos+ drainage ptan heets the County criteria and the intent of the original plan. The drarpg in drainage @nveyane also indudes a drange in the rcad qpss sec{ion. The new road sec.ti-on has tuvo12 foot lines with curb and gufter. This design is not consistent wih the County standards in Sectbn 9.35 of the SuMivision Regulatbns. The road sec'tion is consistent vyifir d? inbrbr roads d Battlenrent M6a vuith no on strcet parking. A variance in road section is typir:ally requested in a PUD and should be speciftcally nobd in any approvalof the project PREI-T$IARY PLAN Weter RbttrlweOr8uppU The project is induded in fie Roaring Fork Water and Sanitation District (RFW&SD) and will exteriO ihe central water system consfucted in Phase l. Adequate water righB have been djudba6d in Case No. 96C11619 and 97CVt236, and 00C1/11019. The Appllcant has received a letter of 'No llabrial tniurlf fironr the Divisbn of Wabr Reource. The propoced wabr disfibutircn system desQn is consistent with previous approvals and will be rwieured ard approved by the RFW & SD. tf,atervetor W&lv&r will be collecfied ard pum@ b the RFW&SD rcgional rrratarabr betrnent f4{lity. The lift statirn uras constructed as part of the Phase I improvemenE. The collection sysfiem design b consFhnt with previous approvals and will be revbwed and apprwed by the RFW & sD. [,0fl Message Page I ofl Richard Wheeler From: Carolyn Dahlgren Sent Fridry, Febntary 10, 2006 10:33 AM To: Richard \Mteeler Su$ecil: FW lmn BrHge Subdivision --{rpinal Message---- Flom: Jake Mal! SenE Fr*by, February 10,2m6 10:26 AM To: Grclyn Dahlgren $biGG* Ircn BrUgp Subdiusbt Carolyn: Garfield Cornty Road & Bridge Departrnent lras no protrlem with the reduction of widtt of UE inbmal rcd sys&m to 2SEet wHe within the lron Bridge SuMivisbn. Jake B. Itidl AdminisfrdiYe Forermn Garfidd County Road & Btidge Dept arcnw6 STATE O, COLORADO OFFICE OF THE STATE ENCINEER Division of Water Resources Department of Natural Resources 1313 Sherman Stree! Room 8'18 Denver, Colorado 80203 Phone (303) 866-3581 FAX (303) 866-3s89 www.water.state.co. us CMUCJUlronbridge Phase 1l ii.doc Alan Martellaro, Division Engineer, Division 5 Bill Blakeslee, Water Commissioner, District 38 Bill Owens Covernor Russell Ceorge Executive Director Hal D. Simpon, PE. State Engineer February 17,2006 Richard Wheeler Garfield County Building and Planning Department 108 8th St Ste 201 Glenwood Springs CO 81601 Re: lronbridge Preliminary PUD Phase l! secs. 1:2, & 12,T75, R8gw, 6h PM and Section 35, TOS, R89W,6h PM W. Division 5, W. District 38 Dear Richard: We have reviewed additional information regarding the above-referenced proposalto subdivide a parcel of approximately 81.384 acres into 173 residential lots with one single-family dwelling on each lot. The applicant proposes to st{ppV water through the Roaring Fork Water and Sanitation District (District). Sewage disposal is also to be provided by the District. A letter ol. clmmitment was not provided. The lronbridge PUD AmendmenUPreliminary Plan was previously approved in our August 6, 2003 letter for a possible 302 residential units, in accordance with an augmentation plan decreed in Case No. 97CW236, which allowed for a development with no more than 550 EQRs. A February 15, 2006 letterfrom Thomas J. Kennedy, P.E., of Zancanella and Associates, !nc. states that the plan approved in the August 6, 2003 letter included 82 residential units designated as lronbridge Phase l. The current application for lronbridge Phase !l includes 173 residential units. The combined 255 units for Phases I and ll are presently allocated 382.5 EQRs, with each residential unit averaging an assumed 1.5 EQRs. The February 15, 2006 letter also indicated that lronbridge has assigned 5.2 AF of their West Divide Water Conservancy District Water Allotment Contract No. 970923RF1(a) (out of a total 51.0 AF) and 17.5 AF of the consumptive use credits adjudicated in Case No. 97CW236 (out of a total of 76.4 AF) to the District to fully augment the out-of-priority depletions associated with the in-house and outside potable water use within the PUD. Based on the above, and pursuant to CRS 30-28-136(1XhXl), it is our opinion that the proposed water supply can be provided without causing material injury to decreed water rights, and is adequate, so long as the plan for augmentation is operated according to its decreed terms and conditions. lf you or the applicant has any questions concerning this matter, please contact Cynthia Love at this office for assistance. R.ECEIVED FEB 2 I 2006 GARFIELD COUNry BUILDING& PISNNING Sincerely, DEC4I-IE I3:53 FR0ll-Colo Div of $later Resources +3038663589 T-253 P.001/002 F-8t8 ETATEOFCOLORADO OFFICE OF ITJE STATE ENGINEER Dlvleton of Water R€sources Departnent of Natural Resourcas 1313 Sherman Skeet, Room 818 Denv€r, Cololado 80203 Phooe (3011) g6&3581 FN((30S)86&3569 FAX GOVER SHEET PLEASE DETIVER THE FOLLOWING PAGES TO: Blll Oi,ErE Govomof RrEBell GoorEc E €cutlue Otmctor Hal D. Slmoron, P.E.snr Enflnoer TO:RlchadtlVheeler Garffeld Gounty BuiHing and Phnning DeparttrffitOFFICE: December2T,ZXIS FNC 9mS84.9470 FROM: ClnthlaLow PHONE: 303$66.ss81 FAX 303S06*?589 TOTAL NUMBER OF PAGES INCLUDING GO\ER SHEET: 2 tr Urgent B For Your lnfonnatlon' E pleasE Riply tr As Requssted , r ...: ' lf you do not recelve all ol the Fag6s ar lndicated or the quatltl ls uhaeceptablp, please call us back a* soon aa poaslble. Telephonel (3OBl86C.358,1 Fax numben (309) EE6.SSE9 MESSAGE $ #mr {'yr DEC-2i:05 I 3:53 FR0M-Colo Div of $later Resourcas +3038663589 T-253 P.002/00? F-81 6 sTArE OF CCLOTUDO OFFICE OF THE STATE ENGINEER Division of Water Resources Department of Nntural Resources I313 Sherman suoet, Room 818 Denver, Colorado 80203 Fhone (303) 066.3581 FAX (303) 866.3589 wulrw.wate r.Stete.(}o. uE Btll Owrnr Colrarnof RuE5rll Grorye Eacutlve Dlreqor Hel O.slmFon, tiE, Son En6ln+r December 27,200s Richard Wheeler Garfield County Building and ptanning Department 10E 8th St Ste 201 Glenwood Springs CO B1O0l Re: lronbridge Prelirninary pUD phase ll Secs. 1 ,2, & 12, T7S, RB9W, 6h pM and Section 35, TOS, RB9W, 6m pM W. DMsion 5, W. DistrictSB Dear Rlfiard: We have r€vieu/ed the above-roferenced proposal to subdivide a parcel of approxima6ly 81.384 acres into 173 residential tots with one single-family dwelling on each lot. Ttie appticantproposes to supPly water through the Roaring Fork Water and Sani-tation District (Distriit). Sewage disposal is also to be provided by tne District. A letter of commitment wa; not piovided. ^ -^--Th" lronbridge PUD AmendmenUPreliminary Plan was previously approved in our August6' 2003 letter, which detailed certain water rights thit were to Oi OeOicatla td ttre Distriet pursirantb a pre-inclusion agreement, which was provided with the 2003 submittal. please explain ho,lrthe cunent proposal relates to our past review. Pursuant to CRS 30-28-136(1)(hxll), a municipality or quasi-municipaliry is required to filea report with the county and he State Engineer documenting the amount oi waier whith can Ue gupplied to the proposed.development without causing injury fo existing water rights. A report ofthis nafure was hot included. See the (online at w\M r.water.sEte.co.uVpu Oslpolr-cieVmerno_ information. Since insufficient information was provided, we cannot comment on the potentialfor injuryto existing wat6r rights under the provisioris of cRs 30-28-136(1xhxil). tf you Jr trrl appticanihas any questions conceming this matter, please contact Cyntnii'f-bve at riris oti". forassistance. Craig M, Lis, P.E. Water Resource Engineer CMUGJUlronbridge Phase ll.doc Alan Martellaru, Division Engineer, Division S Bill Elakeslee, Water Commissloner, District gg Sincerely, Mr. Richard Wheeler Garfie6 County BuiHing and Planning Departnent 108 Eighth Sbeet Suite 201 Gbnwood Springs CO 81601 December 27,20os RE: lronbridge PUD Amendment and Preliminary Plan br Phase 3, Filings 1, 2, ard 3 Dear Rk;hard: At the request of GarfieH Gounty, Reource Engineering, lnc. (RESOURCE) has rertiented he PUD Amendment and Preliminary Plan Submi$al br the lronbridge ptoject. The submittal induded two frree ring binders dated July 2@5 and a set of drawings containing 6il sheets dated August 25,2W5. The genenal technical analysb fur fie whole project was compEbd in 1997 and 1998 and previously updated in 2003 fur the last PUD amendment and Preliminary Plan submittal. ln addition to the o(linal technbal reports, the most recent submittal includes a new drain4e dan, geobchnical analysis specific b the proposed development aneias, and the updated infiastructure design dralings for the Phase ll submittal. Our comments are presented belof,r. PUD ATEilDTENT The proposed PUD Amendnent rehtes to a cirange fisn roadslde grassed surales b a sffinr drain colbc{ion system. The purpose of the gnassed swales is to enhance the water quality of the sbrmwabr runoff. The new drainage plan provides waEr quality enhancement prior to dlscharging inb EB Roaring Fork River. The revised drainage analysis appears adequaF an<l the poposed drainage plan meets the County criteria and the intent of the original plan. The ctnng in drainage @nveyan@ also indudes a dnnge in he road cross sec{ion. The new road section has two 12 fuot lanes with curb and gutter. This design is not consisbnt wih the County standards in Sec{bn 9.35 of the SuMivision Regulations. The rcad section is consistent with tte inbrior roads d Batilerent Mesa with no on strcet parking. A variance in road sedion is typlcally requested in a PUD and should be specifically noEd in any approvalof the proJect PRELTNARY PLAN Water RlghtalWater Suppff The project is included in the Roaring Fork Water and Sanitation District (RFW&SD) and will extend the central water system consfructed in Phase l. Adequate water rights have been adjudicated in Case No. 96G1/t1319 and 97CV1,236, and fi)CW019. The Apdicant has received a letterof 'No Materiallnjuqf fiorn the Division of WaterReoures The poposed water disfributircn system des(1n is consistent with previous approvab ard will be revieured and approved by the RFW & SD. Wastffiater WasbraH wil! be collecbd and prm@ b the RFW&SD regional wastewater ffinent fadltty. The lift statftrn was construcbd as part of the Phase I imprcvemenb. The collectircn system desQn b consisEnt with previous approvals and will be reviewed and apprcved by the RFW & sD. [,0f1 o$ Mr. Richard Wheeler P4e2 December 27.2005 Dminage As disorssed above. fie overall drainage analysb ard phn is adequab br the ptqfect- We rccomnend that the maintenance plan refercned in Sedion 9.6 of the covenants (and liketlise the textof thie sec{ion) be updded to indude the pods and ou0et sffuctures. A Stormwater Managercnt Plan has been included s'hlch provkles contrrcbrs wth a sbp by sbp guidance document fur conrplhnce wm fte State rcgulations and County approvab. Sectbn l0tl PermlHng There does not app€r b be any neur wedanG/Section 404 permi$ing issues fur Ure proiect Solb/Geology A geoHhni<nt sfirdy fucusing on tte propo€ed Phase 2 project was completed by H.P. Geoech. The May 31, 2005 report is onsistent with previous sMies that indicate a site spedfrc geotecfinir=l strdy and foundation design should be submified with tte building permit applftztbn. Pht Note No. 5 shouU be modified b refled the more specifrc rcquirement lisbd above. Lqts 176 and lTf are adjacerfi b an existing sinkhole. Consistent wih he H.P. GeoEcft r€port additional subsurfre exploration should be condu&d prior to any final pht approval. Roeds The intemal road design changed frorn a typical driving hne, shoulder and dibh b a lane with curb ard gutbr b collect storm water runoff. As mentkrned above, this road section b not consisbrt wih County stanGlds, but an aeptable <lesign fur urban density areas. Please call if you have any questions or need additional informafron. Sinoerely, RESOURCE ENG|NEERU{G, tNC. Mi$ael J. Edon, P.E. WaEr Rercure Engineer MJE/mmm 885-16,0 E:8fient1885\16.0 l,onbtitg.\rw am€rd]mil b pdln 885.rloc