Core Engineering Group

11/29/17

Core Engineering Group

Richard Schindler ( )

Dear Applicant and/or Consultant:

Subject: Jimmy Camp Creek Main Channel Lorson Blvd Bridge (CDR -17-7)- Review1

The purpose of this letter is to provide you with the review agency responses to the above named development application that have been received to-date by Planning and Community Development.

You are encouraged to directly contact those agencies that did provide review comments if the comments require additional action by the applicant/applicant’s representative. You are also encouraged to directly contact those agencies that did not provide review comments if such response is required by state statutes and the El Paso County Land Development Code.

EL PASO COUNTY PLANNING AND COMMUNITY DEVELOPMENT DEPARTMENT

Planning –No comments on the construction drawings

Engineering Division

Planning and Community Development (PCD)-Engineering reviews plans and reports to ensure general conformance with El Paso County standards and criteria. The project engineer is responsible for compliance with all applicable criteria, including other governmental regulations. Notwithstanding anything depicted in the plans in words or graphic representation, all design and construction related to roads, storm drainage and erosion control shall conform to the standards and requirements of the most recent version of the relevant adopted El Paso County standards, including the Land Development Code (LDC), the Engineering Criteria Manual (ECM), the Drainage Criteria Manual (DCM), and the Drainage Criteria Manual Volume 2 (DCM2). Any deviations from regulations and standards must be requested, and approved by the ECM Administrator, in writing. Any modifications necessary to meet overlooked criteria after-the-fact will be entirely the developer’s responsibility to rectify.

A written response to all comments and redlines is required for review of the re-submittal. Please arrange a meeting between the developer’s team and County staff to review and discuss these comments and prepared revisions/responses prior to the next submittal.

Design/H&H Report

1.  Note: Provide P.E. signed and stamped report with the final submittal.

2.  Address interim and permanent runoff conveyance from the bridge and temporary and permanent water quality facilities for the area to be paved. Reference ECM Section I.7.

3.  See redlines regarding riprap thicknesses (typos?) on “Layout Recommendations” sheets (pages 63, 66, and 69 of the report pdf).

Construction Plans / Geotechnical Issues

1.  Note: Provide P.E. signature and stamp on all pages with the final submittal.

2.  Provide a plan showing all maintenance roads/trails meeting county criteria on both sides of the channel providing access to the bridge structure, including extension to a public road or designated access easement from a road.

3.  Show and label all existing and proposed easements, including drainage and utilities.

4.  Show and label bridge clearances to the pedestrian/maintenance trails on the appropriate plan sheets. Ensure that clearances will be adequate for both maintenance and regional trail purposes.

5.  See electronic redlines for additional minor comments/questions.

Grading and Erosion Control Plan / SWMP

1.  If the water line crossing Jimmy Camp Creek is included with bridge construction, include it in the limits of construction.

2.  Include all construction access and haul roads, staging and storage areas on the GEC Plan. If roads for equipment access need to be built to the channel bottom, include description of the locations, design and restoration in the SWMP narrative and show on the GEC Plan.

3.  Include all relevant GEC and SWMP checklist items; missing, incomplete, and unclear items are highlighted on the checklists. A short notation/explanation must be provided for items that are not applicable.

4.  Note: some SWMP checklist items (including items 5, 6, 10, 16 and 24) may be deferred to the contractor. If certain items are deferred, provide a note on the GEC Plan specifying that they will be required on the contractor’s SWMP at the time construction begins.

Forms/FAE/SIA

1.  Provide a separate breakdown of the bridge line item costs. Attach to the FAE for reference.

2.  See FAE electronic redlines.

3.  Note: Per development agreement requirements, the bridge improvements need to be completed prior to any additional lots being platted to the east. If the improvements are not complete and accepted prior to an additional subdivision being platted, the Subdivision Improvements Agreement (SIA) for that subdivision will need to include the remaining improvements and/or warranty period, as allowed by the Board of County Commissioners.

4.  See redline on Letter of Intent (typo).

Attachments/Electronic Files

1.  CDR electronic redlines

2.  GEC electronic redlines

3.  FAE electronic redlines

4.  LOI electronic redlines

5.  GEC Checklist

6.  SWMP Checklist

7.  Engineering Final Submittal Checklist

COLORADO DEPARTMENT OF TRANSPORTATION

I am in receipt of a referral request for comment of the subject development. CDOT understands the Lorson Boulevard Bridge over Jimmy Camp Creek Main Channel construction is situated at Lorson Boulevard, generally located east of State Highway 21 and Fontaine Boulevard. CDOT’s comments are as follows;

• The Region 2 Hydraulics Unit has reviewed the “Final Bridge Hydrology and Hydraulics Report” from Loris and Associates Inc. dated September 25, 2017 and has no comments.

Furthermore, the subject development will not have a signifigant impact on the State Highway system, therefore no futher comments from CDOT will be necessary.

Please contact me in Pueblo at (719) 562-5537 with any questions.

Sincerely,

Andrew Lewis

Asst. Access Manager

ELPASO COUNTY CCOMMUNITY SERVICES DEPARTMENT

ENVIRONMENTAL

The El Paso County Environmental Division has completed its review of the Jimmy Camp Creek Main Channel Lorson Blvd Bridge CDR17007. Our review consisted of the following items: wetlands, federal and state listed threatened or endangered species, general wildlife resources and noxious weeds.

1. A completed U.S. Army Corps of Engineers (USCOE) permit shall be provided to the Planning and Community Development Department prior to project commencement if ground-disturbing activities will occur in wetland areas. Alternatively, a letter from a qualified wetland scientist indicating why such a permit is not required for this project will be acceptable. The applicant is hereby on notice that the USCOE has regulatory jurisdiction over wetlands. It is the applicant’s responsibility, and not El Paso County’s, to ensure compliance with all applicable laws and regulations, including, but not limited to, the Clean Water Act.

2. Documentation from the U.S. Fish and Wildlife Service (USFWS) shall be provided to the Planning and Community Development Department prior to project commencement where the project will result in ground disturbing activity in habitat occupied or potentially occupied by threatened or endangered species and/or where development will occur within 300 feet of the centerline of a stream or within 300 feet of the 100 year floodplain, whichever is greater. The applicant is hereby on notice that the USFWS has regulatory jurisdiction over threatened and endangered species and migratory birds, respectively. It is the applicant’s responsibility, and not El Paso County’s, to ensure compliance with all applicable laws and regulations, including but not limited to, the Endangered Species Act and the Migratory Bird Treaty Act.

It is strongly recommended that the applicant obtain the necessary approvals from all federal, state and county agencies as a part of their planning process.

We appreciate the opportunity to comment on this project. If you have any questions or concerns, please contact me at (719) 520-7845.

Due to the number of comments and necessary revisions to the plan(s) an additional detailed review will be necessary. Please address the comments as listed above. A detailed letter needs to accompany the revisions to allow for an expeditious re-review timeframe. The letter should include each comment listed above and, immediately thereafter, include a response from the applicant addressing the comment.

If any review agency has an issue that needs resolution or requires a revision, you will need to provide the necessary documents, drawings, etc., to the Planning and Community Development Department in the form of a resubmittal. The Planning and Community Development Department will then forward the resubmitted items directly to the appropriate review agency. If you have any questions pertaining to specific agency comments please contact the appropriate agency directly.

When all the comments have been addressed and corrections made please electronically submit the required documents as requested.

If you have any questions feel free to contact me at 520-6306.

Best Regards,

Kari Parsons

El Paso County Planning and Community Development Department

cc: Jeff Rice P.E., Engineering

File: CDR-17-007

Page 1 of 5 11/29/2017