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FLOOD10504
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Last modified
1/29/2010 10:12:11 AM
Creation date
10/30/2007 10:56:37 AM
Metadata
Fields
Template:
Floodplain Documents
County
Garfield
La Plata
Community
Glenwood Springs, Durango
Basin
Colorado Mainstem
Title
Glenwood Springs / Durango Wildfire Documents
Floodplain - Doc Type
Correspondence
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<br />COLORADO GEOLOGICAL SURVEY <br />Deportment of Natural Resources <br />1313 Sherman Street, Room 715 <br />Denver, Colorado 80203 <br />Phone (303) 866-2611 <br />FAX (303) 866-2461 <br /> <br />ST A~rE OF COLORADO <br /> <br />;j <br /> <br />December 9, 2003 <br /> <br />DEPARTMENT OF <br />NATURAL <br />RESOURCES <br /> <br />Tom Browning, Project Manager <br />Flood Protection Program <br />Colorado Water Conservation Board <br />1313 Sherman Street, Room 721 <br />Denver, CO 80203 <br /> <br />Bill Owens <br />Governor <br /> <br />Greg E. Wolcher <br />Executive Director <br /> <br />Ronold W. Cottony <br />Division Director <br /> <br />Re: Technical Review of Alluvial Fan Mapping and Modeling - <br />Revised Scope of Services for Phase IT <br /> <br />Ronold W. Cottony <br />Acting State Geologist <br /> <br />Dear Tom, <br /> <br />The following is a revised Scope of Services and Cost Estimate for the Colorado Geological Survey to <br />provide technical review services to CWCB. This project involves reviewing alluvial fan floodway <br />modeling and mapping results and commenting on the geologic aspects, particularly the quality of <br />modeling input parameters and output results. The reviews are being done for studies in two 2002 <br />wildfire areas near Durango and Glenwood Springs where post-fire debris flows and alluvial-f,m flooding <br />are of concern. Over 40 individual alluvial fans are being assessed. <br /> <br />The scope of services breaks down into the following three tasks, which are explained on Page 2: <br /> <br />· Flow model training, initial report reading, and attending project meetings <br />· Field work to check the modeling results against geomorphic evidence <br />· Detailed analysis of model and results and writing the review letter <br /> <br />The cost estimate for these services, including personal services, lodging and per diem, and field supplies, <br />comes to a total of $9,230.34. The first part of this project (Phase I) was completed by CGS during June <br />2003, and $3,400 was invoiced to and paid by CWCB. <br /> <br />Phase II of this project runs from July 1,2003 to January 31, 2004, and covers the remaining tasks and the <br />balance of funding, $5,830.34. During this period, the initial CGS review letter will be submitted to <br />CWCB. Upon incorporating or clarifying additional comments from CWCB, the final version of the CGS <br />review letter would be due 15 days later. The project-funding period will end on January 31, 2004. <br /> <br />Thank you for your consideration. <br /> <br />Sincerely, <br />~"'-'~ L.~ <br /> <br />David C. Noe <br />Chief, Engineering Geology <br /> <br /> <br />Cc: Ron Cattany, Pat Young (CaS) <br /> <br />1 <br />
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