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r-- Virginia Canyon 100 YEAR FLOOD CONTAINED IN CHANNEL ZONE B t/:t CORPORATE LIMITS -:. ~ \ ZONE A2 /$$0 CHICA GO CREEK \ ~ -- /6:; // 0'0 / (566 / 'v/ REFERENCE ELEVATION MARK (FT, NGVD) RM1 7460,3 RM2 7470.0 RM3 7473,4 RM4 7492.1 RM5 7504,8 RM6 7520.3 RM7 7523,174 RM8 7535.8 RM9 7549,4 RM10 7561.1 RM11 7571.6 RM12 7519.3 RM13 7548.2 RM14 7592.2 RM15 7546.2 RM16 7596,6 RM17 7634,8 ZONE C -- ----- -- ....J 100 YEAR FLOOD CONTAINED IN CHANNEL ELEVATION REFERENCE MARKS DESCRIPTION OF LOCATION Top of fire hydrant at east end of white apartment building, approx- imately 50 feet northeast of last building, in parking lot, south of the eastern end of Riverside Drive, Set by Black and Veatch Chiseled square in north end of concrete retaining wall on northeast corner of Gilson Avenue bridge over Clear Creek, Set by Black and Veatch, Railroad spike in power pole, approximately 1,5 feet above grade, at east end of mine tailings from Argo Mill, approximately 125 feet north of Clear Creek and 2000 feet east of 23rd Avenue, Set by Black and Veatch. Railroad spike in power pole at east end of Argo Mill, approximate- ly 1.5 feet above grade, approximately 100 feet north of Clear Creek and 750 feet east of 23rd Avenue, Set by Black and Veatch. Chiseled square in the northeast corner of 23rd Avenue bridge over Clear Creek. by Black and Veatch, Chiseled square in east wingwall of conrete storm sewer outlet struc- ture on Virginia Canyon at Clear Creek, Set by Black and Veatch, U.S. Coast and Geodetic Survey brass cap, starn ped U-140 1934, on north\vest wingwall of Colorado Boulevard bridge over Clear Creek, Set by Black and Veatch. Chiseled cross on top of southeast bolt of south leg of sign that reads "Scenic Area" on south side of Interstate Highway 70, ap- proximately half-way between U.S. Highway 103 and Interstate Highway 70 crossing of Clear Creek, Set by Black and Veatch. Chiseled square in southeast wingwall of U,S, Highway 103 bridge over Cleat" Creek, approximately 50 feet west of confluence with Chicago Creek, Set by Black and Veatch, Chiseled cross in top of southeast bolt at base of sign on south side of Interstate Highway 70, approximately 0.25 mile west of U.S. Highway 103 and Idaho Springs interchange, Set by Black and Veatch, Railroad spike in power pole on east side of U.S, Highway 103, near "Idaho Springs City Limit" sign, approximately 1800 feet south of U.S. Highway 103 and Interstate Highway-70 interchange at Idaho Springs. Set by Black and Veatch. Chiseled square in southeast corner of south headwall of Colorado Boulevard bridge over Soda Creek. Set by Black and Veatch. Railroad spike in light pole on east side of Soda Creek Road, ap- proximately 80 feet south of Interstate Highway 70, Set by Black and Veatch. Railroad spike in light pole on northwest corner of intersection of Pineslope Drive and Soda Creek Road. Set by Black and Veatch. Railroad spike in power pole on northwest corner of intersection of Virginia Street and 19th Avenue, Set by Black and Veatch, Top of fire hydrant on west side of Canyon Street, approximately 300 feet north Virginia Street. Set by Black and Veatch. Railroad spike in power pole on west side of Canyon Street at city limit sign. Set by Black and Veatch, KEY TO MAP SOO-Year Flood Boundary lOO-Year Flood Boundary Zone Designations* With Date of Identification e.g., 12/2/74 100-Year Flood Boundary SOO-Year Flood Boundary Base Flood Elevation line With Elevation In Feet** 513'"' Base Flood Elevation in Feet Where Uniform Within Zone** (EL 987) Elevation Reference Mark RM7X River Mile . M1.5 ** Referenced to the National Geodetic Vertical Datum of 1929 *EXPLANATION OF ZONE DESIGNATIONS ZONE EXPLANATION A Areas of 100-year flood; base flood elevations and flood hazard factors not determined, AO Areas of 100-year shallow flooding where depths are between one (1) and three (3) feet; average depths of inundation are shown, but no flood hazard factors are determined. AH Areas of 100-year shallow flooding where depths are between one (1) and three (3) feet; flood elevations are shown, but no flood factors are determined. A l-A30 Areas of laO-year flood; base flood elevations and flood hazard factors determined, A99 Areas of 100-year flood to be protected by flood protection system under construction; base flood elevations and flood hazard factors not determined, B Areas between limits of the I OO-year flood and 500- year flood; or certain areas subject to laO-year flood- ing with average depths less than one (1) foot or where the contributing drainage area is less than one square mile; or areas protected by levees from the base flood. (Medium shading) C Areas of minimal flooding, (No shading) D Areas of undetermined, but possible, flood hazards, V Areas of 100-year coastal flood with velocity (wave action); base flood elevations and fI ood hazard factors not determ ined, V1-V30 Areas of lOa-year coastal flood with velocity (wave action); base flood elevations and flood hazard factors determ ined, NOTES TO USER Certain areas not in tre special flood hazard areas (zones A and V) may be protected by flood control structures, This map is for flood insurance purposes only; it does not neces- sarily show all areas subject to flooding in the community or all planimetric features outside special flood hazard areas. INITIAL IDENTIFICATION JUNE 14, 1974 CONVERSION TO REGULAR PROGRAM NOVEMBER 15, 1978 Refer to the CONVERSION TO REGULAR PROGRAM date shown on this map to determine when actuarial rates apply to structures in the zones where elevations or depths have been established, To determine if flood insurance is available in this community, contact your insurance agent, or call the National Flood Insurance Program, at (800) 638-6620, or (800) 424-8872. . APPROXIMATE SCALE o 500 FEET . NATIONAL INSURANCE PROGRAM FLOOD MAP CLEAR CREEK COUNTY COMMUNITY.PANEl NUMBER 080 6 0005 B 1\ I NOVEMBER 15,1978 U.S. DEPARTMENT OF HOUSING AND URBAN DEVELOPMENT FEDERAL INSURANCE ADMINISTRATION