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HomeMy WebLinkAboutGypsum Fire Variance Request ApprovalMEMO 502 Main Street, Suite A3, Carbondale, CO 81623 970-704-0311 Project: Sweetwater Ranch Date: March 18, 2025 Topic: Sweetwater Ranch Access Road Variance Requests Prepared By: Jesse Swann (Sopris Engineering) Attachments: Road 3 Exhibit, Upper Houser Site Plan & Pressurized Fire Line Exhibit This memo formally requests variances from the amended 2021 International Fire Code (2021 IFC) pumper truck apparatus road requirements for a proposed private access road serving a development located approximately six miles up Sweetwater Road in Gypsum, Colorado. Project Background The property encompasses approximately 2,660 acres of a working ranch and includes several structures accessed via existing agricultural roads. The proposed development site is situated about 1.75 miles west of Sweetwater Road, and emergency access is planned via an improved existing agricultural access road and a short segment of new road that will connect to the proposed development. The development site will consist of the following structures:  Main Residence: Type VB construction, approximately 20,300 gross square feet.  Guest Cabin 2: Type VB construction, approximately 1,750 gross square feet.  Guest Cabin 3: Type VB construction, approximately 1,860 gross square feet.  Guest Cabin 4: Type VB construction, approximately 2,700 gross square feet.  Future Cabin: Potential fourth guest cabin, assumed to be similar to the other proposed guest cabins listed above.  Community Building: Type VB construction, approximately 14,600 gross square feet.  Activity Building: Type VB construction, approximately 6,800 gross square feet, located near Beaver Pond.  Snowmobile Shed: Type VB construction, approximately 1,800 gross square feet, located near Beaver Pond. Variance Request The existing agricultural road does not meet 2021 IFC access requirements due to steep slopes and narrow widths. After assessing various alternative access road alignments from Sweetwater Road and consulting with Justin Kirkland from Gypsum Fire, we propose improvements to the existing agricultural road, to the extent feasible, to better align with 2021 IFC standards. This option is preferred over using an alternative access road for primary emergency access. Our office has evaluated and designed improvements to the existing access road to closely comply with the pertinent 2021 IFC requirements for pumper fire truck access. Due to existing wetlands and challenging topography, we are requesting a few variances as outlined below and illustrated in attached Exhibit A: 1. Width: The 2021 IFC mandates a minimum width for emergency access roads. To mitigate impacts on existing wetlands, we propose narrowing a section of the road to 16 feet. This modification is essential for preserving the wetland ecosystem while ensuring adequate access for emergency vehicles. Emergency pull-outs will be provided on either side of this narrowed section, with sufficient sight lines for drivers to see oncoming vehicles. 2. Maximum Slopes: Due to the site's topography, some sections of the access road will exceed the 10% slope requirement; however, no section will exceed 11.5%, as further illustrated in Exhibit A. This access road will be maintained year-round and will serve as the primary means of emergency access to the proposed development. Varience approved by GFPD BOD3-26-2025. Subject to final field reviewand approval. 502 Main Street, Suite A3, Carbondale, CO 81623 970-704-0311 Fire Safety Enhancements In addition to the road improvements, all proposed structures, except for the snowmobile shed, will be equipped with a fire sprinkler system. We are also designing a pressurized water line to facilitate the installation of fire hydrants at strategic locations within the development to serve the Main Residence, Community Building, and various Guest Cabins, as illustrated in Exhibit B. This water line will draw from Beaver Pond, an existing pond on the property that offers an estimated fire storage capacity of over 1.5 million gallons. The proposed system is designed to significantly enhance fire safety by ensuring an adequate pressurized water supply for fire suppression, thereby minimizing the need for additional equipment and personnel during emergencies. Furthermore, this fire line will serve a dual purpose by also providing irrigation for the property, allowing for routine operation. Conclusion We believe the proposed improvements and requested variances will effectively balance the need for emergency access with the preservation of the site's sensitive environmental features. We respectfully request your support for these variances and are prepared to engage in further discussions to address any additional concerns you may have. Thank you for your attention to this matter. Please feel free to reach out if you require any further information or documentation. E E PROPOSED 10'X50' PULLOUT & START 16' WIDE ROAD PLATFORM THROUGH EXISTING WETLANDS PROPOSED 10'X50' PULLOUT & END 16' WIDE ROAD PLATFORM THROUGH EXISTING WETLANDS PROPOSED 16-FT WIDE BRIDGE PROPOSED CATTLE GUARD #1 FINAL LOCATION TBD PROPOSED CATTLE GUARD #2 FINAL LOCATION TBD PROPOSED CATTLE GUARD #3 FINAL LOCATION TBD PROPOSED CATTLE GUARD #3 FINAL LOCATION TBD VARIANCE REQUEST #1: 308 LF OF 20-FT WIDE ROAD @ 11.25% VARIANCE REQUEST #2: 927 LF OF 20-FT WIDE ROAD @ 11.5% VARIANCE REQUEST #3: 920 LF OF 16-FT WIDE ROAD TO AVOID IMPACTING SURROUNDING WETLANDS NOTE: PULL OFF PROVIDED ON EITHER SIDE OF NARROWED ROAD SECTION WITH CLEAR LINE OF SIGHT PROPOSED GUARDRAIL-FINAL LOCATION & EXTENTS TO BE FURTHER COORDINATED WITH GYPSUM FIRE AS DESIGN PROGRESSES HMS DITCH CROSSING VARIANCE REQUEST #4: 287 LF OF 20-FT WIDE ROAD @ 10.5% BEAVER POND PROPOSED ACCESS ROAD TO BEAVER POND (20-FT WIDE @ 10% MAX. GRADES). ALIGNMENT OF PROPOSED PRESSURIZED FIRE LINE TO SERVE PROPOSED CABINS AND RESIDENCE AT UPPER HOUSER SITE. PROPOSED FUTURE ACCESS ROAD TO SWEETWATER ROAD 12% MAX. GRADES 16' MIN. WIDTH S W E E T W A T E R R O A D S W E E T W A T E R C R E E K GA R F I E L D C O U N T Y EA G L E C O U N T Y PROPOSED 20-FT ACCESS LOOP ROAD (20-FT WIDE @ 10% MAX. GRADES) W/ LOOPED PRESSURIZED FIRE LINE; RE. TO EXHIBIT B FOR UPPER HOUSER SITE PLAN & PROPOSED PRESSURIZED FIRE LINE W/ HYDRANT LOCATIONS W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W W UPPER HOUSER: FUTURE BUILDING SITE W/ PROPOSED LOOPED PRESSURIZED FIRE WATER LINE FED FROM BEAVER POND PROPOSED ACTIVITY BARN SW E E T W A T E R R O A D SW E E T W A T E R C R E E K PROPOSED FUTURE BRIDGE OVER SWEETWATER CREEK FOR RESIDENTIAL & AGRICULTURAL ACCESS (UNDER DESIGN) PROPOSED GUARDRAIL-FINAL LOCATION & EXTENTS TO BE FURTHER COORDINATED WITH GYPSUM FIRE AS DESIGN PROGRESSES 3/18/2025 DATE REVISION DRAWING NO. TITLE NO R T H 1 inch = ft. ( IN FEET ) GRAPHIC SCALE 0250 250 500 250 100075 SW E E T W A T E R R A N C H 57 9 8 S W E E T W A T E R R O A D GY P S U M , C O 8 1 6 3 7 JOB NO. DATE: SO P R I S E N G I N E E R I N G L L C 50 2 M A I N S T R E E T S U I T E A 3 C A R B O N D A L E C O 8 1 6 2 3 (9 7 0 ) 7 0 4 0 3 1 1 s o p r i s e n g i n e e r i n g . c o m EXHIBIT A ROAD 3 SITE PLAN W/ REQUESTED VARIANCE LOCATIONS 34008 PROPOSED GUARDRAIL PROPOSED CULVERT EXISTING GRAVEL ACCESS ROAD LEGEND SECTION OF IMPROVED ROAD SEEKING A VARIANCE REQUEST FROM GYPSUM FIRE MAPPED WETLAND PROPOSED PRESSURIZED FIRE LINEWWW VICINITY MAP N.T.S. S W E E T W A T E R R D CO L O R A D O R I V E R R D SITE I-70 DOTSERO GYPSUM EXISTING FENCEX EXISTING OVERHEAD POWER LINEOE GY P S U M F I R E C O O R D I N A T I O N E X H I B I T 1 2 ' ' W L 1 2 ' ' W L 12' ' WL 12' ' WL 12' ' WL 12' ' WL 12' ' WL 12' ' WL 12'' WL 12 ' ' WL 12 ' ' WL 12 ' ' WL 12 ' ' WL 12' ' WL 12'' WL 1 2 ' ' W L 1 2 ' ' W L 12' ' WL 12' ' WL 12' ' WL 12' ' WL 12'' WL 12'' WL 12' ' WL 12' ' WL 12'' WL 12 ' ' W L 12 ' ' W L 12 ' ' W L 12 ' ' W L 12 ' ' W L 1 2 ' ' W L 1 2 ' ' W L 1 2 ' ' W L 1 2 ' ' W L 1 2 ' ' W L 12 ' ' WL 12 ' ' WL 12 ' ' WL 12 ' ' WL 12 ' ' WL 12 ' ' WL 12 ' ' WL 12 ' ' WL 12'' WL 12'' WL 12'' WL 12'' WL 12'' WL 1 2 ' ' W L 1 2 ' ' W L 1 2 ' ' W L 1 2 ' ' W L 1 2 ' ' W L 1 2 ' ' W L 1 2 ' ' W L 12'' WL 7750 77 5 5 7 7 6 0 7 7 6 5 7 7 7 0 7 7 7 5 77 8 0 7 7 8 5 7 7 9 0 77 9 5 78 0 0 78 0 5 20.0' ACCESS ROAD SLOPES VARY (10% MAX.) 20.0' WIDE ACCESS RD 10% MAX. GRADES20.0' WIDE DRIVEWAY MAX. GRADE: 6.4% LENGTH 150-FT TO STAGING AREA AS SHOWN HEREIN 20.0' WIDE DRIVEWAY MAX. GRADE: 3.75% LENGTH: 100-FT± 20.0' WIDE ACCESS RD MAX. GRADE: 8% LENGTH: 120-FT± 20.0' WIDE DRIVEWAY W/ 8% MAX. GRADES 20.0' WIDE DRIVEWAY W/ 8% MAX. GRADES GUEST CABIN #3 GUEST CABIN #2 MAIN RESIDENCE COMMUNITY BARN GUEST CABIN #4 POTENTIAL FUTURE CABIN SITE 20.0' WIDE ACCESS ROAD TO SWEETWATER RD. RE. TO EXHIBIT A FOR OVERALL ALIGNMENT OF ACCESS ROAD 77 8 0 7 7 7 0 77 7 0 7 7 7 0 775 0 7 7 3 0 7 7 2 0 77 1 0 7 7 1 0 7 7 3 0 772 0 77 2 0 7 6 9 0 7 6 8 0 7 6 9 0 7 7 0 0 7 7 0 0 77 0 0 76 9 0 76 9 0 7680 7670 PROPOSED HYDRANT LOCATION PROPOSED HYDRANT LOCATION PROPOSED HYDRANT LOCATION PROPOSED HYDRANT LOCATION PROPOSED HYDRANT LOCATION PRESSURIZED WATER LINE FROM BEAVER POND PRESSURIZED WATER LINE FROM BEAVER POND LOOPED AROUND ACCESS ROAD PROPOSED DRIVEWAY ACCESS (DESIGN STILL UNDER DEVELOPMENT) PROPOSED HYDRANT LOCATION TURN AROUND TO ACCOMMODATE AMBULANCEPROPOSED PRESSURIZED FIRE LINE FED FROM BEAVER POND LOCATED FURTHER UP THE PROPERTY. ACCESS TO BEAVER POND WILL BE PROVIDED VIA A NEW 20-FT WIDE ACCESS ROAD DATE REVISION DRAWING NO. G: \ 2 0 2 4 \ 3 4 0 0 8 S W E E T W A T E R _ R A N C H \ C I V I L \ C I V I L D W G S \ E X H I B I T S \ B U I L D I N G S I T E S \ C A D \ U H F I R E H Y D R A N T P L A C E M E N T C O O R D . D W G - M a r 1 7 , 2 0 2 5 - 8 : 0 6 a m NO R T H 1 inch = ft. ( IN FEET ) GRAPHIC SCALE 050 50 100 50 20025 JOB NO. DATE: SO P R I S E N G I N E E R I N G L L C 50 2 M A I N S T R E E T S U I T E A 3 C A R B O N D A L E C O 8 1 6 2 3 (9 7 0 ) 7 0 4 0 3 1 1 s o p r i s e n g i n e e r i n g . c o m EXHIBIT B PROPOSED UPPER HOUSER SITE PLAN & FIRE HYDRANT LOCATIONS 34008 3/18/2025 GY P S U M F I R E C O O R D I N A T I O N E X H I B I T EXISTING CONTOUR 2-FT INTERVAL EXISTING CONTOUR 10-FT INTERVAL7900 :33.1Steering Angle 4.83 17.67 8.17 6.91 6.0 American LeFrance - Eagle feet : : : Width Track Lock to Lock Time 32.67 70.5' CURB TO CURB REAR WHEEL TRACKING FRONT WHEEL TRACKING VEHICLE CENTERLINE VEHICLE CLEARANCE TURNING MOVEMENT LEGEND LEGEND PROPOSED CONTOUR 2-FT INTERVAL PROPOSED CONTOUR 10-FT INTERVAL7900 NOTE: LOCATION OF PROPOSED FIRE HYDRANTS ILLUSTRATED HEREIN ARE CONCEPTUAL AND MAY ADJUST AS THE DESIGN PROGRESSES. FINAL LOCATIONS SHALL BE APPROVED BY GYPSUM FIRE PRIOR TO CONSTRUCTION. SW E E T W A T E R R A N C H 57 9 8 S W E E T W A T E R R O A D GY P S U M , C O 8 1 6 3 7