LARIMER COUNTY RURAL AREA ROAD STANDARDS

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Appendix G – Design and Construction Standards for Private Local Access RoadsSection G.7 Road Design Standardsmaterial generated by the construction of the road and the normal high-water line of thestream. Proper revegetation of cut and fill slopes or other means of erosion andstormwater control must be affected to protect water quality of the stream. The Engineermay grant deviations from this buffer requirement if it can be demonstrated that theeffects of such construction will not degrade water quality.Construction of roadways within intermittent streams or drainageways shall not bepermitted except for purposes of crossings. Proper design to allow adequate flow ofstormwater, as indicated by the normal high-water line, must be incorporated in the plan.A buffer of at least 20 feet of undisturbed ground and vegetative cover from the normalhigh-water line must be maintained for roadways paralleling these features.A 50- foot buffer zone must be maintained for wetlands unless further encroachment hasbeen approved by the U.S. Army Corps of Engineers. Delineation of the wetland may berequired by a qualified person to properly identify the extent of the wetland boundaries.G.7.11 General ConsiderationsPlanning and construction of these roads should take into consideration all aspects ofthe effects of such construction activities. Among these should be consideration ofencroachment upon critical wildlife habitat, wetlands conservation, protection of waterquality in local streams, ponds and lakes, esthetics, etc. Site specific variances fromthe above standards to mitigate such concerns shall be considered so long as roadwaysafety and emergency access are maintained. Applicants are encouraged to studythese issues and seek help from appropriate agencies or individuals to assess all effectsof the proposed construction as a part of the planning process.G.7.12 Other Permits and ConditionsIssuance of a Private Road Construction Permit does not exempt the applicant fromacquiring other permits regarding other local, State or Federal requirements.Larimer County Rural Area Road Standards Page G-9October 22, 2007
Appendix G – Design and Construction Standards for Private Local Access RoadsSection G.7 Road Design StandardsCut slope1.5:1commonC L20’3%3%Natural slopeCompactedsubgradeMinimum 4” All-weather surface(gravel, crushed rock, etc.)1’ minimum or asrequired for adequateculvert cover2:1 maximumfill slopeNOTE: Total road width may be reduced to 12’ (10’ in unusual cases) with constant 4% cross slope forsingle access roads. Turnouts at maximum intervals of 600’ should be at least 30’ long.Figure 1 - Private Local Access Road Typical Cross SectionLarimer County Rural Area Road Standards Page G-10October 22, 2007
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LARIMER COUNTYRURAL AREA ROAD STAND
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Table of Contents3.3.11 Typical Str
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Table of ContentsCHAPTER 8 - ENVIRO
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Table of Contents12.3.7.2 Conventio
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Table of ContentsG.7.12 Other Permi
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Chapter 1 - General InformationSect
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Chapter 2 - Submittal ProceduresSec
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Chapter 2 - Submittal ProceduresSec
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Chapter 3 - Submittal Requirements
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Chapter 4 - Road Design and Technic
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4.9.1.7 Design VehiclesChapter 4 -
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CHAPTER 5 - GEOTECHNICAL STANDARDS
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Chapter 5 - Geotechnical Standards
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Chapter 6 - STORMWATER MANAGEMENTSe
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Chapter 7 - Bridges and Major Drain
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Chapter 8 - Environmental and Agric
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Chapter 8 - Environmental and Agric
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9.1.3 DefinitionsChapter 9 - Roadwa
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CHAPTER 10 - ACCESS REQUIREMENTS AN
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Chapter 10 - Access Requirements an
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CHAPTER 11 - ACCESS AND UTILITY PER
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Chapter 12 - Right of Way Permittin
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Appendix A - Definitions and Abbrev
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Appendix A - Definitions and Abbrev
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Page 130 and 131: APPENDIX E - CONSTRUCTION TESTING F
Page 132 and 133: Appendix F - Guidelines for Traffic
Page 140 and 141: APPENDIX G - DESIGN AND CONSTRUCTIO
Page 142 and 143: Appendix G - Design and Constructio
Page 154 and 155: Appendix H - General NotesSection H
Page 162 and 163: APPENDIX I - VARIANCE REQUEST SUBMI
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LARIMER COUNTY RURAL AREA ROAD STANDARDS

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