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TABLE ONE <br />• SYLVESTER GULCH DESIGN CRITERIA <br />The design standards for this project aze based on information from the following sources: <br />AASTO: "A Policy on Geometric Design of Highways and Streets", 2001 <br />USFS: "Road Preconstruction Handbook", 1987 <br />Colorado Division of Mining, Performance Standards <br />GIVEN: Design Speed = 20 mph <br /> Maximum Vehicle Length = 31 ft. <br />AASHTO <br />USE: Design Vehicle = WB-40 <br /> Minimum Inside Radius = 19.3 ft. <br /> Minimum Outside Radius = 40.0 ft. <br />USFS <br />USE: Level of Service C <br /> Minimum Radius from Exhibit 2, 4.31- -5 = 75 ft. <br /> Minimum Crest Vertical from Exhibit 2, 4.32- -6 = 60 ft. <br /> Minimum Sag Vertical from Exhibit 6, 4.32- -10 = 50 ft. <br />•~COiOItAD O DIVISION OF MINING <br />USE: Access Road Requirements <br /> Overall Grade = 10% <br /> Pitch Grade = 15% <br /> +15% grade = 300 ft. max. <br /> Maximum Cut Slope = 1'ha <br /> Maximum Fil] Slope = 1%:1 <br />PROJECT DESIGN STANDARDS <br />The standards and design requirements from these sources was analyzed. Based on the analysis <br />performed and the requirements of the CDM and USFS the following aze the design standazds for this <br />project: <br />Design Speed = 20 mph <br />Roadway Width = 14 ft. <br />Max. Cut Slope = 2:1 <br />Max. Fill Slope = 1%::1 <br />Min. Crest Vert. = 100 ft. <br />Min. Sag Vert. = 50 ft. <br />Min. Horizontal Radius = 100 ft. <br />Max. Grade = 15% <br />• Design Vehicle = WB-40 <br />Max. Vehicle Length = 31 ft. <br />Drainage Design = 100 yeazs <br />Designed and built to applicable CDOT specifications. <br />