HomeMy WebLinkAbout1.20 Road Assessment
Article 7-107
Access and Roadways
Assessment
Ursa Operating Company LLC
Tompkins Injection Well
OA Project No. 014-2878
760 Horizon Drive, Suite 102 TEL 970.263.7800
Grand Junction, CO 81506 FAX 970.263.7456 www.olssonassociates.com
Road Assessment
Ursa Operating Company LLC
Tompkins Injection Well
The Ursa Operating Company LLC (Ursa) Access Road begins where it turns off of County Road (CR)
309 (Rulison-Parachute Road) in the SE ¼ of the SE ¼ of Section 5, Township 7 South, Range 95
West of the 6th P.M. and terminates at the Ursa Tompkins Injection Well site in the SE ¼ of the SE ¼ of
Section 5, Township 7 South, Range 95 West of the 6th P.M. This access road is approximately 175
feet from CR309 to the Tompkins well pad.
Statement of Adequacy
This access road is typical of roads providing access to natural gas production facilities in Garfield
County. The roadway is adequate for the intended use.
Geometry of Road
The following table compares this access road to the Garfield County Roadway Standards found in
Table 7-107 of the Land Use and Development Code for Semi Primitive roads.
Table 1 Ursa Tompkins Access Road
Table 7-107: Roadway Standards
Design Standards Semi Primitive Ursa Tompkins
Access Road
Design Capacity (ADT) 21-100 10-60
Minimum ROW Width (Feet) 40 0
Lane Width (Feet) 8 14-26
Shoulder Width (Feet) 2 0
Ditch Width (Feet) 4 0
Cross Slope 2% Chip Seal Chip Seal
3% Gravel
2.6%-4.9%
Shoulder Slope 5% n/a
Design Speed n/a n/a
Minimum Radius (Feet) 50 53
Maximum % Grade 12% 3.5%
Surface Gravel Gravel
The field work for this road assessment was conducted on December 10, 2014. Conditions may vary at
time of report preparation.
The road is across private land and currently is not covered by a dedicated access easement or
dedicated right-of-way (ROW). Legal access is granted through a Water Injection Well Lease and
Surface Use Agreement between Thomas Lynn Tompkins and Ursa Operating Company LLC, dated
August 6, 2014.
The road width varies between 29 feet and 52 feet.
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Ursa Operating Company LLC
Access Road Assessment Page 2
Roadside ditches were not present.
The existing cross slope varies between 2.6% and 4.9%. There are no shoulders present on the access
road. However, the road width exceeds the minimum requirements for a semi primitive roadway.
The horizontal radii range from 53 feet to 200 feet. All of the turns meet the minimum 50 foot standard
radius.
The grade of the road varies between 2.8 to 3.5%, which is less than the maximum grade allowed of
12%.
The existing road surface is gravel.
The road geometry changes occasionally with maintenance activities. Cross slopes change during
maintenance operations. The road was built to follow the general topography of the area with minimal
change to the natural grade.
Safety/Structural Issues
No obvious safety or structural issues were observed on the date of the field observation, December
10, 2014.
Maintenance
Ursa oversees all of the maintenance on the road. The road is inspected on a regular basis for
maintenance issues. Maintenance includes grading as needed to remove washboard and repair
potholes. The road surface is graveled as needed to maintain the road base with attention to dust
control. Speeds are low to promote safety and reduce road damage.
Travel Demand
Average Daily Traffic (ADT) is expected to be between 10 and 60 as shown in the Basic Traffic Study
prepared by Olsson Associates, dated January 2015 and revised January 2016, included with this
submittal. This roadway is being assessed according to the standards for a Semi Primitive road. Traffic
associated with the additional land use of an injection well at the site includes two pickup trucks trips
per day for inspections. There will be a short construction phase. The construction phase will last
approximately three days. Daily traffic during that phase will include two lowboys making two round
trips (four one-way trips) for equipment and tanks. One additional lowboy would arrive on Day 2 and
leave on Day 3 to transport the earthmover. There will be two pickups per day arriving in the morning
and leaving at the end of the work day. During the drilling and completion activities on this pad, twenty
round trips (40 one-way trips) per day are expected. During production, little additional truck traffic will
be expected to the site. Inspections will be made as part of the ongoing pad inspection schedule.
Produced water will be transported to and from the site via the Tompkins Pipeline. Water trucks will
haul produced water to or from the pad only during upset conditions.
Other Evidence of Compliance
Section 7-107.A Access to Public Right-of-Way
The private road to the site has direct access to CR 309.
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Ursa Operating Company LLC
Access Road Assessment Page 3
Section 7-107.B Safe Access
Access to the site is consistent with other similar uses.
Section 7-107.C Adequate Capacity
Traffic congestion is not anticipated as a result of the proposed Tompkins Injection Well.
Section 7-107.D Road Dedications
The access road is a private road. No rights-of-way will be dedicated to the public.
Section 7-107.E Impacts Mitigated
Based on the expected trip generation rates discussed in the Basic Traffic Study, the increase in
average daily traffic is not expected to be significant on roads generally used by the public. The county
road will see only a minor increase in traffic as compared to existing traffic volumes. The addition of
traffic generated by the proposed site does not increase existing volumes to levels required for State or
County permits. The geometry at all intersections where site traffic will be turning is expected to be
adequate for site traffic.
Conclusions
The Ursa Tompkins Injection Well Access Road deviates from the Design Standards in Table 7-107 for
ROW width, shoulder width, ditch width, cross slope, and shoulder slope.
The road is across private land and currently is not covered by a dedicated access easement or
dedicated right-of-way (ROW).
The road width varies between 29 feet and 52 feet. There are no shoulders present, however, the road
width exceeds the minimum requirements for a semi primitive road. There is sufficient width to allow for
two-way traffic.
Roadside ditches were not constructed. The existing roadway allows for storm drainage to sheet flow
across the roadway.
The existing cross slope 2.8% and 3.5%. The road geometry changes occasionally with maintenance
activities. While ponding may occur in areas of shallow cross slope, the road is inspected on a regular
basis for maintenance issues, which are addressed in a timely manner.
The road functions adequately as built and is typical of existing roads providing access to natural gas
production in Garfield County.
Wyatt E. Popp, PE
014-2878PROJECT NO:DRAWN BY:12/29/2015DATE:ABL
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