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<br />7. U.S. Department of the Interior, Geological Survey, 7.5-Minute <br />Series TOPoEraohic Maps, Scale 1:24,000, Contour Interval 10 feet: <br />Bracewell, Colorado (1950), Photorevised (1969) <br /> <br />B. U.S. Department of Commerce, National Oceanic and Atmospheric <br />Administration, Precioitation-FreQuency Atlas of the Western United <br />States, NOAA Atlas 2, Colorado, 1973 <br /> <br />9. U.S. Department of Agriculture, Soil Conservation Service, National <br />EnEineerin2 Handbook, Section 4,August 1972 <br /> <br />10. U.S. Department of the Interior, Geological Survey, 7.5-Minute <br />Series TOP02raohic Maos, Scale 1:24,000, Contour Interval 10 feet: <br />Milliken, Colorado (1950), Photarevised (1969) <br /> <br />11. <br /> <br />, <br />1:24,000, Contour <br />Phatorevised (1971) <br /> <br />7.5-Minute Series <br />Interval 10 feet: <br /> <br />ToooEraphic Maos, <br />Eaton, Colorado <br /> <br />Scale <br />(1950) , <br /> <br />12. <br /> <br />U.S. Department of Agriculture, Soil Conservation Service, <br />Hazard Analyses. Coal Creek and Rock Creek, Boulder and <br />Counties, Colorado, October 1976 <br /> <br />Flood <br />Weld <br /> <br />13. U.S. Department of Agriculture, Soil Conservation Service, National <br />EnEineerin2 Handbook. Hydrology, Section 4. August 1972 <br /> <br />14. ---------------. Engineering Division. Central Technical Unit, <br />Technical Release No. 20, Computer ProEram for Proiect Formulation, <br />May 1965 <br /> <br />15. <br /> <br />U.S. Department of the Army, Corps of <br />Engineering Center, HEC-2 Water-Surface <br />Davis, California (Revised February 1977) <br /> <br />Engineers, Hydrologic <br />Profiles, 723-X6-L202A, <br /> <br />16. Nelson, Haley, Patterson & Quirk, Inc., Preliminary EnEineerinE <br />Reoort. Draina2e Study. Firestone-Frederick Area. Weld County. <br />Colorado, Scale 1:24,000, Contour Interval 1 foot, September 1975 <br /> <br />17. Weld County and Colorado Water Conservation Board, Aerial <br />Photoerammetric Maps for Sheep Draw Flood Plain StudY, Scale <br />1:2,400, Contour Interval 2 feet, prepared by M and I Consulting <br />Engineers, Fort Collins, Colorado, December 1978 <br /> <br />l8. Water Resaurces Consultants, Inc., TOP02raphic MaDs. Coal Creek. <br />Boulder and Weld Counties. Colorado. compiled by photogrammetric <br />methods, Scale 1: 4 ,800, Contour Interval 2 and 4 feet: February <br />1980 <br /> <br />19. <br /> <br />Water Resources Consultants, Inc., Floodplain Information. <br />Control and Floodplain Manaeement Plan for Coal Creek at <br />Colorado, and Technical Addendum, August 1980 <br /> <br />Flood <br />Erie. <br /> <br />42 <br />