LARIMER COUNTY RURAL AREA ROAD STANDARDS

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Chapter 10 – Access Requirements and CriteriaSection 10.4 Access Design Standards and SpecificationsAccess ElementTable 10-1Access Spacing CriteriaArterialMajorCollectorMinorCollectorLocalRoadMinimum Distance between IntersectionsSignalized 2640 ft NA NA NAUnsignalized 1320 ft 1320 ft 660 ft 330 ftMinimum Distance between Low Volume Accesses 660 ft 660 ft 330 ft 150 ftMinimum Distance between Low Volume Access & Intersection 660 ft 660 ft 330 ft 150 ftMinimum Distance between Driveways 660 ft 330 ft 100 ft 30 ftMinimum Distance between Low Volume Access & Driveway 660 ft 330 ft 100 ft 30 ftMinimum corner clearance between Driveways & Intersections 660 ft 175 ft 100 ft 80 ftNotes:1. Distances are measured as separation between the centerlines.2. If a property can meet multiple spacings, the County may require the larger spacing be used.3. Low Volume Access is defined as access with daily traffic volumes between 21 and 99vehicles. Low volume accesses may be restricted (now or in the future) to right-in, right-outmovement only.4. Driveway is defined as 20 trips per day or less.10.4 ACCESS DESIGN <strong>STANDARDS</strong> AND SPECIFICATIONS10.4.1 Basic Criteria1. To the greatest extent possible all openings for accesses or intersections shall belocated at the point of optimum sight distance along the street. The profile of anapproach and the grading of the adjacent area shall be such that when a vehicleis located outside the traveled portion of the street the driver can see a sufficientdistance in both directions so as to enable the vehicle to enter the street withoutcreating a hazardous traffic situation.2. The opening width should be adequate to properly handle the anticipated trafficvolume and character of traffic, as well as being within the limits specified for thetype of property development. The controls established for access shall apply toexisting streets as well as new streets that may be developed in the future.3. Any adjustments which must be made to utility poles, street light standards, firehydrants, catch basins or intakes, traffic signs and signals, or other publicimprovements or installations which are necessary as the result of the accessshall be accomplished without any cost to Larimer County.4. Access design shall provide for the safe movement of all existing and potentialhighway right-of-way users, including, but no limited to, pedestrians, bicyclists,and those with disabilities. Side walks and/or bike lanes may be required whereappropriate and included in the access permit.5. Accesses that are to serve as an entrance only or as an exit only, shall beappropriately signed at the expense of the property owner. The property ownerwill be required to provide some means of ensuring that the motorists will use theaccess either as an entrance only or an exit only, but not both.Larimer County Rural Area Road Standards Page 10-6October 22, 2007
Chapter 10 – Access Requirements and CriteriaSection 10.4 Access Design Standards and Specifications10.4.2 Number of Accesses1. The number of access to a parcel is based on adjacent road classification. SeeSection 10.3.10.4.3 Minimum Spacing Between AccessesThe minimum spacing between access openings shall be as shown in Table 10-1. Thisspacing will apply to the distance between accesses serving adjoining properties. Thisdoes not apply to private residential driveways on local subdivision roads.10.4.4 Joint EntrancesWhenever possible and feasible, joint entrances will be provided to serve two adjacentproperties. Joint entrances are to be centered on the common property line.10.4.5 Entrance AngleIn general, the entrance angle for all approaches shall be as near 90° to the centerline ofthe street as possible. The minimum angle which will be permitted is 90° plus or minus10 degrees.10.4.6 Access ApproachesAccess approaches shall not be approved for parking or loading areas that requirebacking maneuvers within County right-of-way. All off-street parking areas must includeon-site maneuvering areas and aisles to permit user vehicles to enter and exit the site inforward drive without hesitation.10.4.7 Width of AccessThe total width of opening for properties based upon land use is shown below.Access width for any rural type access without curbs shall be measured without radii orflares. Access with a street style curb return entrance and driveways with curb cuts,shall be measured behind the flared section.Single Family Residential: 16 - 24 ft of widthMulti-Family Residential: 20 - 36 ft of widthCommercial/Industrial: 24 - 36 ft of widthWhen an access intended to become a public roadway intersects another road, thedesign criteria of Chapter 4 these standards shall be used to select an appropriateaccess width.10.4.8 Access Radii1. Minimum radii for an access shall be 20 feet with the exception of single familyresidential accesses off of a local subdivision road.2. When the access is intended for commercial or industrial use, the access radiishall accommodate turning movement of anticipated vehicle types. A maximumof 50 feet for radii shall be used.Larimer County Rural Area Road Standards Page 10-7October 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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Page 17 and 18: Chapter 2 - Submittal ProceduresSec
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Page 21 and 22: Chapter 3 - Submittal Requirements
Page 27 and 28: Chapter 4 - Road Design and Technic
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Page 39 and 40: CHAPTER 5 - GEOTECHNICAL STANDARDS
Page 41 and 42: Chapter 5 - Geotechnical Standards
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Page 51 and 52: Chapter 7 - Bridges and Major Drain
Page 53 and 54: Chapter 8 - Environmental and Agric
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Page 57 and 58: 9.1.3 DefinitionsChapter 9 - Roadwa
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Page 71 and 72: CHAPTER 11 - ACCESS AND UTILITY PER
Page 73 and 74: Chapter 12 - Right of Way Permittin
Page 93 and 94: Appendix A - Definitions and Abbrev
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Page 97 and 98: APPENDIX B - REFERENCES AND RESOURC
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Page 112 and 113: Appendix D - Construction Standards
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Appendix D - Construction Standards
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APPENDIX E - CONSTRUCTION TESTING F
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Appendix F - Guidelines for Traffic
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APPENDIX G - DESIGN AND CONSTRUCTIO
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Appendix G - Design and Constructio
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Appendix H - General NotesSection H
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APPENDIX I - VARIANCE REQUEST SUBMI
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LARIMER COUNTY RURAL AREA ROAD STANDARDS

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