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Home My WebLink About3.3.4 Traffic StudyLevel 2 Auxiliary Turn Lane Assessment For Oil and Gas Operation Area PA 41-9 Garfield County, Colorado September 2009 PREPARED FOR: Williams Production RMT 1058 County Road 215 Parachute, CO 81635 970-263-2574 Contact: Bryan Hotard PREPARED BY: Drexel, Barrell & Co. 1350 17th Street, Suite 210 Denver, CO 80202 720-214-0955 Contact: Ann Bowers, PE, PTOE Drexel Barrell Project Number: 01048 Transportation Impact Study Oil and Gas Operation Area PA 41-9 Table of Contents 1.0 Project Description 3 2.0 Existing Conditions 4 3.0 Project Generated Traffic and Trip Distribution 7 4.0 Total Traffic Projections 9 5.0 Recommendations 11 6.0 Conclusions 12 Tables and Figures Figure 1: 2009 Existing Traffic Count 6 Figure 2: Project -Generated Traffic Assignment 8 Figure 3: 2010 Total Traffic Volumes 10 Appendices Traffic Counts (Made by Navjoy Consulting Services dated 9/15/2009 - 9/16/2009) Background information Site Traffic Estimates Provide by Williams 1.0 Project Description This Auxiliary Turn Lane Assessment examines the effects of site -generated traffic on the roadway system for an existing Williams Production well pad site taking access from Garfield County Road 301. This location is designated by Williams as Oil and Gas Operation Area PA 41-9. This analysis includes impacts for the Year 2010. This site is a parcel located north of County Road 301, within Garfield County. This site currently has a single access approximately 1.25 miles from the east of the intersection with Battlement Mesa Parkway. This is expected to remain the sole access for the production facilities. Vicinity Map for the Well Site: (Not to scale) Oil and Gas Operation Area PA 41-9, D W48 Page 3 H:\D1048\Reports\Traffic\D W48 T!S.doc September 2009 2.0 Existing Conditions The roadways within the vicinity of the project are detailed below: County Road 301 (Morrisania Mesa Road): This two-lane, generally east -west roadway travels between Battlement Mesa Parkway and points east, eventually turning north and ending at County Road 309. CR 301 runs to the south of the oil and gas operation area, and is the primary access for this facility to the public roadway system. The posted speed limit is 35 mph. Oil and Gas Operation Area PA 41-9, D1048 Page 4 H:\D 1048\Reports\Traffic\D 1048 T1S.doc September 2009 2.1 Existing Traffic Volumes Existing directional traffic volumes were collected on County Road 301 near the existing site access. These counts were collected on Tuesday, September 15th, 2009 through Wednesday, September 16th. The two day average at this location was 812 vehicles per day. The resulting AM and PM weekday peak hour traffic at this location can be seen in Figure 1. Oil and Gas Operation Area PA 4 J-9, D1048 Page 5 H:\D 1048\Reports\Traffic\D 1048 T15.doc September 2009 Figure 1: Year 2009 Existing Traffic Volumes 1..... :i �;,.,; It ;t,4: J .. t,`, Sre.alt { �`„'yti:: 4 r Y A.. TS_x�.tir`-.: r �•l:.ti::•� it 11• ier• Ate Drexel, Barrell & Co. 1800 38th Street 3 S 7th Street 1350 17th Street. Suite 210 123 N 71h Street 6513 W 4th Street 2955 Village Drive. Suite 14 Boulder, CO 80301 Colorado Springs, CO 60905 Denver. CO 80202 Grand Junction, CO 81501 Greeley, CO 80634 Steamboat Springs. CO 80488 LEGEND: AM / PM (turning movement counts) XX / YY Turning Movements Oil and Gas Operotionol Area PA 41-9 Garfield County, Colorado September 22 202? 3.0 Project Generated Traffic and Trip Distribution 3.1 Trip Generation As this type of development does not conform to any published Institute of Transportation land use types, Williams Production was asked to assist in determining the traffic impact that this site would be expected to add to the existing roadway system. The data as provided by Williams can be seen in the Appendix. This oil and gas development area has largely been completed and the traffic anticipated to use this site now and in the future is expected to be minimal. Per correspondence with Williams staff, it is expected that the only regular traffic that can be expected for this site is one pumper truck every three days and one water truck per month. Therefore, the highest reasonable expectation of peak hour traffic at this location would be one inbound and one outbound vehicle. 3.2 Project Trip Distribution It is anticipated that the majority of traffic will either come from or go to the west on County Road 301. From there the traffic would be expected to travel north and east on County Road 309, avoiding travel through the Town of Parachute. 3.3 Project Trip Assignment The anticipated assignment of peak hour project -generated traffic onto the existing roadway network is illustrated in Figure 2. Oil and Gas Operation Area PA 41-9, D1048 Page 7 H:\D 1048\Reports\Traffic\D 1048 TIS.doc September 2009 Figure 2: Site -Generated Traffic Volumes rr+- .0t .�'f •• ; ��`if Lr ier+ ~�vrs +.'giv. • st 1.ri 'ft s r. hYT • I .07.04••\11 ACCO=11C9. 140 Drexel, Barrell & Co. 1800 38th Street 3 S 7th Street 1350 17th Street, Suite 210 123 N 71h Street 6513 W 4th Street 2955 Village Drive. Suite 14 Boulder. CO 80301 Colorado Springs. CO 80905 Denver, CO 80202 Grand Junction, CO 81501 Greeley, CO 80634 Steamboat Springs, CO 80488 LEGEND: AM / PM (turning movement counts) XX / YY Turning Movements Oil and Gas Operational Area PA 41-9 Garfield County, Colorado September 22. 2009 4.0 Total Traffic Projections The existing peak hour traffic volumes were added to the project -generated traffic to develop total traffic volumes. The Year 2010 Total traffic volumes are shown in Figure 3. Oil and Gas Operation Area PA 41-9, D1048 Page 9 H: \D 1048\Reports\Traffic\D 1048 TIS.doc September 2009 Figure 3: Year 2010 Total Traffic Volumes is -tsar .1► et•r 4 t• • .1;:-. „Ai 401plyr..NP:pirs. . •••• .. %, : -..: iii 3•' 0.f[ Ai*hid'. n Drexel, Darrell & Co. 1800 38th Street 3 5 7th Street 1350 17th Street, Suite 210 123 N 71h Street 6513 W 4th Street 2955 Village Drive, Suite 14 Boulder. CO 60301 Colorado Springs, C0130905 Denver. CO 80202 Grand Junction, CO 81501 Greeley. CO 80634 Steamboat Springs, CO 80488 LEGEND ; AM / PM (turning movement count) XX / YY Turning Movements Oa and Gas Operational Area PA 41.9 Garfield County- Colorado September 22, 200? 5.0 Recommendations 5.1 Auxiliary Turn Lane Analysis It does not appear that either the County has specific criteria for when an auxiliary turn lane is required. Without specific criteria, it is common practice to compare projected volumes to the criteria laid out in Section 3 of the State of Colorado's State Highway Access Code, 2002 (Access Code). While the criteria of this Code are primarily intended for roadways of regional or statewide significance, it can provide some general guidance on the desirability of turn lanes at a given location. As can be seen in Figure 2, the highest expected hourly inbound traffic volume at the proposed site access is 1 vph. Assuming that the most applicable assignment of County Road 301 within the Access Code would be Rural Highway (R -B) with a speed limit of 35 mph, the left turn Zane warrant criteria for this access is 10 vph, much higher than the expected 1 vph. From a strictly volume perspective, no turn lanes should be needed. The Access Code also includes a methodology of analysis that factors the effect of heavy vehicles at an access point (Section 2.3(4)(e)) in which each heavy vehicle should be treated as 3 passenger cars. Considering a theoretical 100% heavy vehicle percentage, the left turn movement would not be expected to observe more than 1 x 3 = 3 passenger car equivalents during the peak hour. As this is the only expected typical inbound movement, no turn lanes should be required at the site access. 6.0 Conclusions The proposed site access should function well under typical operating conditions without any capacity improvements to County Road 301. This development would be expected to contribute a small increase in traffic on County Road 301. Over the two days of counting, County Road 301 experienced an average of 812 vehicles per day. An addition of 2 vehicles per day as projected for this site would constitute a 0.1% increase in traffic volume. The transportation network in the vicinity of Oil and Gas Operation Area PA 41-9 can accommodate the addition of project -generated traffic. 01! and Gas Operation Area PA 41-9, D 1048 Page 12 H:\D 1048\Reports\Traffic\D1048 77S.doc September 2009 Appendix: Traffic Counts Tuesday September 15, 2009 through Wednesday, September 16th, 2009 County Road 301 Near Existing Site Access 011 and Gas Operation Area PA 41-9, D1048 Page 13 H:\D 1048\Reports \ Traffic \D 1048 TiS,doc September 2009 Navjoy Consulting Services, Inc. Page 1 1385 S Colorado Blvd Suite A-707 Denver, CO 80222 Site Code: 1 303-502-7343 Station ID: 1 CR 301 Start 15 -Sep -0 Time Tue EB WB Total 12:00 AM 6 3 9 01:00 2 0 2 02:00 0 0 0 03:00 3 0 3 04:00 2 0 2 05:00 15 10 25 06:00 27 17 44 07:00 28 41 69 08:00 27 35 62 09:00 24 14 38 10:00 21 22 43 11:00 33 29 62 12:00 PM 22 23 45 01:00 32 25 57 02:00 23 24 47 03:00 35 34 69 04:00 34 30 64 05:00 19 35 54 06:00 21 33 54 07:00 14 16 30 08:00 6 7 13 09:00 5 12 17 10:00 1 5 6 11:00 2 4 6 Total 402 419 821 Percent 49.0% 51.0% AM Peak 11:00 07:00 07:00 Vol. 33 41 89 PM Peak 15:00 17:00 15:00 Vol. 35 35 69 Navjoy Consulting Services, Inc. Page 2 1385 S Colorado Blvd Suite A-707 Denver, CO 80222 Site Code: 1 303-502-7343 Station ID: 1 CR 301 Start 16 -Sep -0 Time Wed EB WB Total 12:00 AM 1 0 1 01:00 0 0 0 02:00 4 3 7 03:00 3 0 3 04:00 3 2 5 05:00 15 7 22 06:00 19 10 29 07:00 29 40 69 08:00 26 35 61 09:00 34 21 55 10:00 24 18 42 11:00 27 27 54 12:00 PM 28 21 49 01:00 18 24 42 02:00 26 24 50 03:00 32 23 55 04:00 32 40 72 05:00 28 40 68 06:00 19 27 46 07:00 15 20 35 08:00 7 13 20 09:00 4 8 12 10:00 0 4 4 11:00 0 1 1 Total 394 408 802 Percent 49.1% 50.9% AM Peak 09:00 07:00 07:00 Vol. 34 40 69 PM Peak 15:00 16:00 16:00 Vol. 32 40 72 Grand Total 796 827 1623 Percent 49.0% 51.0% ADT Not Calculated Appendix: Background Information Site Traffic Estimates Provide by Williams Oil and Gas Operation Area PA 41-9, D1048 Page 14 H:\D 1048\Reports\Traffic\D 1048 TIS.doc September 2009 Page 1 of 1 Chris Vokurka From: Ann T. Bowers Sent: Monday, September 21, 2009 1:12 PM To: Chris Vokurka Subject: FW: A few questions.... From: Hotard, Bryan[mailto:Bryan.Hotard@Williams.com] Sent: Monday, September 21, 2009 1:02 PM To: Ann T. Bowers Cc: Bryan, Dasa ; Harris, Jessica ; Hotard, Sandy Subject: RE: A few questions.... Mrs. Bowers, I hope you are having a great Monday. The answers to your questions are as follows; GV 82-5 —The reason for the "zero" is because we have a pipeline to the central frac location for the GV 82-5. This line eliminates the need for water trucks in the Completion process. Water truck traffic during the drilling phase is greatly reduced due to us pumping out of the river. PA 41-9 — More specific data for this location is as follows; One (1) pumper truck every Three (3) days to this location. One (1) water truck per month. If you have any more questions, please feel free to call and or email me!! Have a great day!! Bryan Hotard Contract Landman Williams Production RMT Cell 970-361-2006 Office 970-263-2754 9/22/2009