HomeMy WebLinkAbout20200742.tiff MEMORANDUM
TO: Kim Ogle, Planning Services
1861
FROM: Mike McRoberts, P.E., Public Works
DATE: January 23, 2020
O UN r�` - SUBJECT: USR19-0070 Tri-State
The Weld County Department of Public Works has reviewed this proposal. Staff comments made during
this phase of the application process may not be all-inclusive, as other issues may arise during the
remaining application process.
COMMENTS
GENERAL PROJECT INFORMATION/LOCATION
Project description: A SITE SPECIFIC DEVELOPMENT PLAN AND USE BY SPECIAL REVIEW PERMIT,
USR19-0070, FOR A MAJOR FACILITY OF A PUBLIC UTILITY OR PUBLIC AGENCY(APPROXIMATELY
20 MILES OF 115 KV TRANSMISSION LINES), THE NEW 115 KV SISSON SUBSTATION AND
CONSTRUCTION STAGING AREAS NEAR THE LOYD SISSON AND KEOTA SUBSTATIONS
(CONSISTING OF TWO CONSTRUCTION TRAILERS, MULTIPLE STORAGE CONTAINERS AND
OTHER ASSOCIATED EQUIPMENT) IN THE A (AGRICULTURAL) ZONE DISTRICT. (TRI-STATE
GENERATION AND TRANSMISSION, INC.)
Parcel number: Various/multiple.
ACCESS
According to the application materials: 1) the project involves the construction of approximately 20 miles
of transmission line and a new substation; 2)the existing Keota Substation will be used for staging and will
be accessed from an existing permitted access (AP13-00358)on County Road 89, located approximately
4,870 feet south of County Road 106; 3) a new access is proposed on County Road 130, immediately west
of County Road 71, for the new Lloyd Sisson Substation; 4) access for the transmission line, substation
and rights-of-way will occur primarily along Weld County roads; and 5)there is currently a"preferred layout"
for the transmission line and two alternative routes.
As indicated in Number 5 above, the final transmission line route has not yet been determined. Once the
project layout is finalized, the applicant shall submit to Public Works for review: 1) graphical and written
documentation addressing the final route location;2)identification of all public rights-of-way being impacted
and/or crossed by the project; and 3) the road classification (local, collector, or arterial) and surface type
(gravel or paved)for each road being crossed by the transmission line.
After Public Works' review and concurrence of the information requested in the preceding paragraph, the
applicant shall delineate and label on the USR map the physical location of the impacted public roads and
the existing and future rights-of-way along with the creating documents for the rights-of-way. Please note
that the physical location of existing roadways may not be centered in the right-of-way, and that pursuant
to the definition of setback in the Weld County Code, Chapter 23, Article III, Section 23-3-50, required
setbacks are measured from future right-of-way lines.
Per Sec. 8-14-30, an Access Permit is required for access to Weld County maintained roadways. We
strongly encourage you to discuss your access with Public Works prior to laying out your site plan to ensure
the approved accesses are compatible with your layout. Per Sec. 24-8-40, when feasible, there shall be no
net increase in the number of accesses to a public road. Minimum access spacing are shown in Weld
County Code, Sec. 8-14-30 Table 1. Please refer to Chapter 8 of the Weld County Code for more
information regarding access.
Per, Sec. 8-13-30.B, a Weld County Right-of-Way Use Permit is required for any project that will be
occupying, constructing or excavating facilities within, and/or encroaching upon, any County rights-of-way
or easement. Right-of-Way Use Permit instructions and application can be found at
https://www.weldgov.com/departments/publicworks/permits/.
Weld County will not replace overlapping easements located within existing right-of-way or pay to relocate
existing utilities within the County right-of-way.
Weld County roadway classifications and road surface types can be found on the Weld County Property
Portal at: https://www.co.weld.co.us/maps/propertyportal/
ROADS AND RIGHTS-OF-WAY(FOR PROJECT SUBSTATIONS)
County Road 71 is a gravel road and is designated on the Weld County Functional Classification Map(Code
Ordinance 2017-01) as a local road, which requires 60 feet of right-of-way. The applicant shall delineate
and label on the site map or plat the future and existing right-of-way(along with the documents creating the
existing right-of-way) and the physical location of the road. If the right-of-way cannot be verified it shall be
dedicated. Pursuant to the definition of setback in the Weld County Code, Sec. 23-1- 90, the required
setback is measured from the future right-of-way line. Be aware that physical roadways may not be centered
in the right-of-way. This road is maintained by Weld County.
County Road 89 is a gravel road and is designated on the Weld County Functional Classification Map(Code
Ordinance 2017-01)as a collector road,which requires 80 feet of right-of-way.The applicant shall delineate
and label on the site map or plat the future and existing right-of-way(along with the documents creating the
existing right-of-way) and the physical location of the road. If the right-of-way cannot be verified it shall be
dedicated. Pursuant to the definition of setback in the Weld County Code, Sec. 23-1-90, the required
setback is measured from the future right-of-way line. Be aware that physical roadways may not be centered
in the right-of-way. This road is maintained by Weld County.
County Road 130 is a gravel road and is designated on the Weld County Functional Classification Map
(Code Ordinance 2017-01) as a local road, which requires 60 feet of right-of-way. The applicant shall
delineate and label on the site map or plat the future and existing right-of-way (along with the documents
creating the existing right-of-way)and the physical location of the road. If the right-of-way cannot be verified
it shall be dedicated. Pursuant to the definition of setback in the Weld County Code, Sec. 23-1-90, the
required setback is measured from the future right-of-way line. Be aware that physical roadways may not
be centered in the right-of-way. This road is maintained by Weld County.
TRAFFIC
No traffic counts are available in the project area.
The traffic information submitted with the application materials is provided in the table below.
Number of Duration of
Activity Persons Equipment Construction Trips(AveragefMax)
Structure 25-30 3-4 bucket trucks 8 weeks 3-4 round trips per day
Assembly and 3 digger derricks 3 round trips per day
Erection 1 boom truck 1 round trip per day
2 mobile crane 2 round trips per week
C pickup trucks 20 round trips per day
3 flatbed trailers 1 round trip per day
2-3 tractor trailers 8-12 round trip s per day
Wire 25-30 6 pickup trucks 8 weeks 20 round trips per dery
Installation 2druin pullers 2 round trips per week
2 tensioners 2 round trips per week
3 bucket trucks 3 round trips per day
1 helicopter maybe
needed]
Cleanup S 1 bobcat 4 weeks 1 round trip per day
5-6 pickups 20 round trips per deny
Total 33-3E N A 22 weeks 30 averager45 max
TRACKING CONTROL
Tracking control is required to prevent tracking from the site onto public roadways. For access to paved
roads, tracking control devices can be double cattle guards with 100 feet of asphalt or 300 feet of asphalt.
For access to gravel roads, tracking control devices must be either double cattle guards with 100 feet of
road base, or road base on all driving surfaces. Temporary Tracking Control shall be used during
construction unless permanent tracking control is installed ahead of construction activities. Recycled
concrete is not allowed in County right-of-way. Tracking control for unmaintained public right-of-way is
required just prior to entering publicly maintained roadways. A variance request for alternatives to the
tracking control requirement can be submitted to Public Works for review and consideration.
ROAD MAINTENANCE AGREEMENT
Public Works is requesting a Road Maintenance Agreement including, but not limited to, dust control, and
damage repair to specified haul routes for construction only.
Improvements/Road Maintenance Agreement: An example agreement is available at:
https://www.weldgov.com/UserFiles/Servers/Server 6/File/Departments/PubliO/020Works/DevelopmentR
eview/USR-SPR-Permite/020Improvemente/020Agreement°/020Template.pdf.
DRAINAGE REQUIREMENTS (FOR LLOYD SISSON SUBSTATION)
This area IS within a Non-Urbanizing Drainage Area: Non-Urbanizing Drainage Areas typically require
detention of runoff from the 1-hour, 100-year, storm falling on the developed site and release of the detained
water at the historic runoff rate of the 1-hour, 10-year storm falling on the undeveloped site for NON-
URBANIZING areas.
Detention Pond summarized in a Drainage Report:
The applicant has submitted a preliminary drainage report. A final drainage report and detention pond
design completed by a Colorado Licensed Professional Engineer is required prior to recording the USR
map. The drainage report must include a certification of compliance stamped and signed by the PE. A
Certification of Compliance form can be found on the Public Works Development Review website. General
drainage report checklist is available on the engineering website. More complete checklists are available
upon request.
Historic Flows:
The applicants will be required to maintain the historic drainage flows and run-off amounts that exist from
the property.
GRADING PERMIT
A Weld County Grading Permit will be required if disturbing more than 1 acre. Grading Permit applications
are accepted after the planning process is complete(plan recorded). An Early Release Request Form may
be entertained only after the applicant, Public Works and Planning Department have reviewed the referral
and surrounding property owner comments. The Early Release Request may or may not be granted
depending on referral comments and surrounding property owner concerns. Contact an Engineering
representative from the Public Works for more information.
A Construction Stormwater Permit is also required with the State for disturbing more than 1 acre. Contact:
Colorado Department of Public Health and Environment, Water Quality Control Division, 303-692-3575.
CONDITIONS OF APPROVAL
A. A Road Maintenance Agreement (during construction only) is required at this location. Road
maintenance includes, but is not limited to, dust control and damage repair to specified haul routes.
(Department of Public Works)
B. A Final Drainage Report and Certification of Compliance stamped and signed by a Professional
Engineer registered in the State of Colorado is required. (Department of Public Works)
C. The plan shall be amended to delineate the following:
1. County Road 71 is a gravel road and is designated on the Weld County Functional Classification
Map as a local road which requires 60 feet of right-of-way at full buildout. The applicant shall
delineate and label on the site map or plat the future and existing right-of-way (along with the
documents creating the existing right-of-way) and the physical location of the road. All setbacks
shall be measured from the edge of right-of-way. This road is maintained by Weld County.
(Department of Public Works)
2. County Road 89 is a gravel road and is designated on the Weld County Functional Classification
Map as a collector road which requires 80 feet of right-of-way at full buildout. The applicant shall
delineate and label on the site map or plat the future and existing right-of-way (along with the
documents creating the existing right-of-way) and the physical location of the road. All setbacks
shall be measured from the edge of right-of-way. This road is maintained by Weld County.
(Department of Public Works)
3. County Road 130 is a gravel road and is designated on the Weld County Functional Classification
Map as a local road which requires 60 feet of right-of-way at full buildout. The applicant shall
delineate and label on the site map or plat the future and existing right-of-way (along with the
documents creating the existing right-of-way) and the physical location of the road. All setbacks
shall be measured from the edge of right-of-way. This road is maintained by Weld County.
(Department of Public Works)
4. Label the physical location of the impacted public roads and the existing and future rights-of-way
along with the creating documents for the rights-of-way. Please note that the physical location of
existing roadways may not be centered in the right-of-way, and that pursuant to the definition of
setback in the Weld County Code, Chapter 23, Article III, Section 23-3-50, required setbacks are
measured from future right-of-way lines.
5. Show and label the approved access locations,approved access widths and the appropriate turning
radii (60') on the site plan. The applicant must obtain an access permit in the approved locations
prior to construction. (Department of Public Works)
6. Show and label the approved tracking control on the site plan. (Department of Public Works)
7. Show and label the substation entrance gate, if applicable. An access approach that is gated shall
be designed so that the longest vehicle (including trailers) using the access can completely clear
the traveled way when the gate is closed. In no event, shall the distance from the gate to the edge
of the traveled surface be less than 35 feet. (Department of Public Works)
8. Show and label any required access and utility easements (30-foot minimum) needed to provide
legal access for the project on the site plan. (Department of Public Works)
9. Show and label the accepted substation drainage features. Stormwater ponds should be labeled
as "Stormwater Detention, No-Build or Storage Area" and shall include the calculated volume.
(Department of Public Works)
10. Show and label the substation drainage flow arrows. (Department of Public Works)
11. Show and label the substation parking and traffic circulation flow arrows showing how the traffic
moves around the property. (Department of Public Works)
Prior to Construction:
A. The approved accesses and tracking control shall be constructed prior to construction. (Department of
Public Works)
B. If more than one (1) acre is to be disturbed, a Weld County Grading Permit will be required.
(Department of Public Works)
DEVELOPMENT STANDARDS (NOTES ON THE SITE PLAN)
1. The property owner or operator shall be responsible for controlling noxious weeds on the site, pursuant
to Chapter 15, Article I and II, of the Weld County Code. (Department of Public Works)
2. The access to the site shall be maintained to mitigate any impacts to the public road, including damages
and/or off-site tracking. (Department of Public Works)
3. There shall be no parking or staging of vehicles on public roads. On-site parking shall be utilized.
(Department of Public Works)
4. Any work that may occupy and or encroach upon any County rights-of-way or easement shall acquire
an approved Right-of-Way Use Permit prior to commencement. (Department of Public Works)
5. The Applicant shall comply with all requirements provided in the executed Road Maintenance
Agreement. (Department of Public Works)
6. Access may be along unmaintained County right-of-way and maintenance of the right-of-way will not
be the responsibility of Weld County. (Department of Public Works)
7. The historical flow patterns and runoff amounts on the substation site will be maintained. (Department
of Public Works)
8. Weld County is not responsible for the maintenance of onsite substation drainage related features.
(Department of Public Works)
At/ WELD COUNTY DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT
1555 North 17th Avenue, Greeley, CO 80631 www,weldhealth,org
Memorandum
To: Kim Ogle
From: Lauren Light, Environmental Health Services
Date: January 13, 2020
Re: USR19-0070 Tri-State Generation
Environmental Health Services has reviewed this proposal for a Site-Specific
Development Plan and Use by Special Review Permit for a Major Facility of a Public
Utility (approximately 20 miles of 115 KV transmission lines) and facility construction
staging areas near the Loyd Sisson and Keota substations (consisting of two
construction trailers, multiple storage containers and other associated equipment) in
the A (Agricultural) zone district.
Permanent water and sewer is not required as this request is a temporary construction
use. Portable toilets and bottled water can be utilized during construction of the
transmission line. If the amount of disturbed area exceeds 25 acres, an Air Pollution
Emission Notice (APEN) is required. The substation will be remotely monitored.
Environmental Health Services recommends that the following requirements be
incorporated into the permit as development standards:
1. During construction, all liquid and solid wastes (as defined in the Solid Wastes
Disposal Sites and Facilities Act, 30-20-100.5, C.R.S.) shall be stored and
removed for final disposal in a manner that protects against surface and
groundwater contamination.
2. During construction, no permanent disposal of wastes shall be permitted at this
site. This is not meant to include those wastes specifically excluded from the
definition of a solid waste in the Solid Wastes Disposal Sites and Facilities Act,
30-20-100.5, C.R.S.
3. During construction, waste materials shall be handled, stored, and disposed in a
manner that controls fugitive dust, fugitive particulate emissions, blowing debris,
and other potential nuisance conditions. The facility shall operate in accordance
with Chapter 14, Article 1 of the Weld County Code.
Health Administration Public Health& Environmental Health Communication, Emergency Preparedness
Vital Records Clinical Services Services Education&Planning g Response
Icic:9/U 304 6410 laic:9/0 304 6420 Tele:970-304-6415 Tele:970-304-5470 Tele:970-304-6470
Fax: 9/U-304-6412 Fax: 910-304-6415 Fax: 970-304-6411 Fax. 970-304-545'2 Fax: 970-304-6452 Public Health
4. Fugitive dust and fugitive particulate emissions shall be controlled throughout
the duration of construction of the transmission line and until ground cover is
established. Uses on the property shall comply with the Colorado Air
Quality Commission's air quality regulations.
5. The applicant shall submit an Air Pollution Emission Notice (A.P.E.N.) and
Emissions Permit Application and obtain a permit from the Air Pollution Control
Division, Colorado Department of Public Health and Environment, as
applicable.
6. During construction, adequate toilet facilities and handwashing units shall be
provided. Screened portable toilets are acceptable. Portable toilets shall be
serviced by a cleaner licensed in Weld County and shall contain hand
sanitizers. Portable toilets shall be removed upon completion of construction.
7. The operation shall comply with all applicable rules and regulations of the State
and Federal agencies and the Weld County Code.
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