Name: Slope Failure USGS 1999

Display Field: ZONED

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Description: Data Type: Static. Vintage: Per Board of County Commissioners by Resolution CC76-144, dated January 20, 1976.Slope Failure Complex GIS Layer is one part of the Geologic Hazard Zoning Overlay District. Other separate GIS Layers that are part of the Geologic Hazard Zoning Overlay District are: Landslide , Rockfall , and Subsidence . There is an attribute named ZONED with type YES/NO indicating the disposition of each feature in the respective data layer. The features that are not zoned are administered as Geologic Constraints. A definition query can be set in ones’ GIS application to display the information from various viewpoints.HISTORYThe Geologic Hazard Zoning Overlay District of which the Slope Failure Complex is part was established by the Board of County Commissioners by Resolution CC76-144, dated January 20, 1976, and recorded at Book 2865, Page 579, Reception Number 76793807 under zoning case number B76-16. The map data was compiled from 1:24,000 hardcopy maps . Those maps were then digitized by County staff /interns. The bearing – distance files were generated from the digitized courses. The map and course data can be seen in the record documents.REFERENCESGARDNER, M.E., SIMPSON, H.E., and HART, S.S., 1971, Preliminary Engineering Geologic Map of the Golden Golden Quadrangle,Jefferson County, Colorado, U.S.G.S. Map MF-308.HANSEN, W. R., 1973, Effects of the May 5-6, 1973 Storm in the Greater Denver Area, Colorado, U.S.G.S. Circular 689, 20 pp.Landslides and Engineering Practice, 1958, Ed., ESKEL, E.B., Highway Research Board Special Report 29, Washington D.C., 232 pp.REED, J.C. Jr., SHERIDAN, D.M., and BRYANT, B., 1973, Map Showing Faults, Joints, Foliation, and Surficial Deposits in the EvergreenQuadrangle,Jefferson County, Colorado, U.S.G.S. Map I-786-F.ROBINSON, G.S., 1974, Engineering Geologic Report, Landslides on 44thAvenue, East of Golden, Colorado, Prepared for Colorado Division of Highways District 6ROGERS and Others, 1974, Guidelines and Criteria for Identification and Land-Use Controls of Geologic Hazard and Mineral Resource Areas,Special Publication No. 6, Colorado Geological Survey, 146 pp.SCHMIDT, P.W., 1972, Slope Map of the Evergreen Quadrangle, Jefferson County, Colorado, U.S.G.S. Map I-786-C.SHERIDAN, DM, REED, J.C., Jr., and BRYANT, B. 1972, Geologic Map of the Evergreen Quadrangle, Jefferson County, Colorado, U.S.G.S. Map I-786-A.SIMPSON, H.E., 1973, Map Showing Landslides in the Golden Quadrangle, Jefferson County, Colorado, U.S.G.S. Map I-761-B.SIMPSON, H.E., 1973, Map Showing Areas of Potential Rockfalls in the Golden Quadrangle, Jefferson County, Colorado, U.S.G.S. Map I-761-C.SCOTT, G.R., 1972, Geologic Map of the Morrison Quadrangle Jefferson County, Colorado, U.S.G.S. Map I-790-A.SCOTT, G.R., 1972, Map Showing Landslides and Areas Susceptible to Landsliding in the Morrison Quadrangle, Jefferson County, Colorado, U.S.G.S. Map I-790-B.SLOSSON, J.E., 1969, The Role of Engineering Geology in Urban Planning, Special Publication No. 1, Colorado Geological Survey, pp. 8-15.VAN HORN, R., 1972, Surficial and Bedrock Geologic Map of the Golden Quadrangle,Jefferson County, Colorado, U.S.G.S. Map I-761-A.Other SPECIFICSData is in State Plane Grid Coordinates, Colorado Central Zone, NAD83.

Service Item Id: 23065afff6f14017bf530fe511fc3036

Copyright Text: Credit Jefferson County Planning & Zoning in any use of this data.

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