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Home My WebLink AboutC01-132 Work Authorization - Eagle River Hydrology(._� r{ 0 a a i3 ! a� u WORK AUTHORIZATION Engineering and Hydrology Services for Eagle River Hydrology Eagle County, Colorado I hereby authorize Water Resource Consultants, LLC, and Paul C. Currier, P.E., to proceed on a time and materials basis in accordance with the enclosed fee schedule, with a not too exceed of $15,000 without prior written authorization, with the scope of work as described in the accompanying letter dated April 13, 2001. A O, S'NGZ-Z C" IN Company: Eagle County Authorized Signature: Tom C. StAV, Chairman 'goxe• °o 4ii—c- Eagle_County Board of County Commissioners Date of Signature: �� fZ Billing / Maling Address: Eagle County P.O. Box 850 Eagle, CO 81631 Project Contact: Helen Migchelbrink, County Engineer P.O. Box 850 Eagle, CO 81631 Phone: (970) 328 - 8760 Fax: (970) 328 - 7185 e -mail: helenmig@vail.net Please return this authorization via FAX or mail to: Water Resource Consultants, LLC 244 Hutton Ave. Rifle, CO 81650 PH /FAX (970) 625 — 5433 pcurrier @bwn.net Thank you! Water Resource Consu I tants, LLC April 13, 2001 Helen Migchelbrink, County Engineer Eagle County P.O. Box 850 Eagle, CO 81631 RE: Eagle River Hydrology Study Dear Helen, Attached is a Scope of Work and a Work Authorization for the Eagle River Hydrology study. The scope of work is as outlined by the Colorado Water Conservation Board. Should this meet with the Commissioners approval, please have the appropriate Commissioner sign the Work Authorization Form, and then return it to me via FAX or mail. We look forward to working with you and the CWCB. Should you have any questions, please feel free to contact me. Sincerely, WATER RESOURCE CONSULTANTS, LLC Paul C. Currier, P.E. PCC /pcc 211 -2.0 / 04 -13-01 Authoftabon.doc 244 Hutton Ave., Rifle, CO 81650 PH / Fax (970) 625 -5433 pcurrier @bwn.net Cost Estimate for Engineering / Hydrologic Services Water Resource Consultants, LLC 13- Apr -01 Hydrologic Analysis of Eagle River from Minturn to the Confluence with the Colorado River and for the Colorado River from the Confluence with the Eagle River to the Eagle - Garfield County Line Est. Total Estimated number of days 19.25 Daily rate ($88 /hour) 704 Estimated labor 13552 Estimated expenses 1400 Estimated Subtotal 14952 Round to - -> 15000 Notes Base maps (GIS orACAD) to be provided by CWCB. Minimal mapping effort anticipated. Field work to include visiting all gage locations and review of quality of records; familiarity with drainages sufficiently to identify and where possible quantify key runoff related issues. Water Resource Consultants, LLC 13 -April -2001 Page 1 of 1 Task I Description Days Expenses Task 1 Review gage data; use USGS PEAKFQ (Bulletin 17B Guidelines) to analyze records from 8 gages; perform veracity check on existing gage data and flood flows 3.5 Task 2 Meet with three - member TAC (assumes 3 meetings in Eagle County) 3 200 Task 3 Review of Watershed Field review 3 600 Define watershed characteristics (slope, elev, precip) 1.5 Runoff timing 1 Snowmelt vs. rainfall 1 Compute flows, 10- 50- 100- 500- year 1.5 Task 4 Flood Routing using HEC -1 Compute peak flows for 100 -year events 1 Compute peak flows for 500 -year events 1 Calibrate model to match FEMA and Sato reports 2 Task 5 Prepare six copies of final report 0.75 600 Est. Total Estimated number of days 19.25 Daily rate ($88 /hour) 704 Estimated labor 13552 Estimated expenses 1400 Estimated Subtotal 14952 Round to - -> 15000 Notes Base maps (GIS orACAD) to be provided by CWCB. Minimal mapping effort anticipated. Field work to include visiting all gage locations and review of quality of records; familiarity with drainages sufficiently to identify and where possible quantify key runoff related issues. Water Resource Consultants, LLC 13 -April -2001 Page 1 of 1