LARIMER COUNTY RURAL AREA ROAD STANDARDS

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APPENDIX D – CONSTRUCTION <strong>STANDARDS</strong>D.1 <strong>ROAD</strong>SD.1.1 ScopeThe purpose of this standard is to set forth the criteria to be used in the construction ofall roads within Larimer County. Subject to the Larimer County revision of thesestandards, all road, bridge and related construction shall be performed in accordancewith the latest edition of the Colorado Department of Transportation StandardSpecifications for Road and Bridge Construction and the latest version of the ColoradoDepartment of Transportation Standard Plans M&S Standards.D.1.2 General1. Variances from Standards. These standards, the CDOT standards andconstruction plans are intended to supplement each other. In the event there is aconflict between the two, the standards shall govern except as supported by anapproved variance request. If administrative changes are made after approval ofthe plans, the variance from these standards must be approved in writing by theEngineer. Work shall be completed according to the design approved by theEngineer. Written clarification shall be obtained from the Engineer for approval ofomissions, conflicts or revisions prior to construction.2. Omissions. Any work not specifically set forth in the construction plans or thesestandards, but which is necessary as determined by the Larimer County, shall becompleted.3. Conformity of Work and Materials. All work performed and all materialsfurnished shall be in conformity with the lines, grades, cross sections, dimensionsand material requirements, including tolerances, shown on the plans or indicatedin these criteria and the specifications. It shall be the responsibility of eachindividual contractor to keep the work area clean during the prosecution of thework.4. Utility Coordination. Utility coordination is the responsibility of the Developer.Relocation of utilities which are in an existing public right-of-way or existing publiceasement, as determined by the Engineer, shall be done at the expense of theutility involved or the Developer.D.1.3 Regulations for Road Construction1. Authority of Engineer. The Engineer is authorized to check all work performedin connection with road construction, including, but not limited to, clearing andgrubbing, compaction of subgrade, placement of subbase, base and asphalt,forms, concrete work and materials to be used. The Engineer may be present onthe site to advise contractors on these standards, and has authority to rejectdefective materials and workmanship, until any questions of issue can beresolved by the Engineer, and advise the Contractor in complying withconstruction plans and standards.The Engineer shall, in no case, act as foreman or perform other duties for theContractor, nor interfere with the management of the work done by theLarimer County Rural Area Road Standards Page D-1October 22, 2007
Appendix D – Construction StandardsSection D.1 RoadsContractor. The presence or absence of the Engineer shall not relieve, in anydegree, the responsibility or the obligation of the Developer, Contractor or theConsultant.The Engineer shall, at all times, have reasonable and safe access to the workwhenever it is in preparation or progress and the Contractor will provide properfacilities for such access and inspection. The Engineer has the authority to selectlocations for tests to be made and to require additional testing to be paid for bythe Developer.2. Notice Before Beginning Work. The Contractor shall notify the Engineer’s officea minimum of 48 hours before beginning construction.3. Compaction in Utility Trenches, Culverts, etc. Before road construction will bepermitted, all utility trenches within the road right-of-way (including service lines)must be mechanically compacted to 95% of maximum density per AASHTO T 99or AASHTO T180 or as specified in the soils report. All water and sewer servicesincluding water and sewer main stub-outs shall be installed prior to roadconstruction. This compaction shall extend to the road right-of-way line as aminimum. Water settlement of trenches shall not be permitted.4. Construction Stakes. The Developer shall provide all stakes necessary for curb,gutters, walks and structures and will furnish all necessary information relating tolines and grades. The Contractor shall be held responsible for the reasonablepreservation of all such stakes.5. Work Zone Traffic Control. Work zone traffic control devices shall bemaintained in a safe operating condition at all times. The Contractor shallprovide, for approval by the Engineer, a work zone traffic control plan, and shallcomply with the current edition of The Manual on Uniform Traffic Control Devices(MUTCD). If the Engineer finds the construction area to be inadequatelyprotected, the Engineer has the authority to stop work and direct that correctivemeasures be taken prior to proceeding with work.6. Preservation of Property. Existing improvements, adjacent property, utilities,trees and plants that are not to be removed shall be protected from injury ordamage resulting from the Contractor’s operations.7. Timeliness of Repairs. Repairs to all failed or unsatisfactory work shall becompleted within 30 days after receipt of notice to repair from the Engineerunless otherwise approved by the Engineer.8. Protection of Utility Lines. The Contractor shall at all times take properprecautions for the protection of utilities, the presence of which are known or canbe determined by field locations of the utility companies.9. Protection of Public and Private Installations. The Contractor shall at all timestake proper precautions for the protection of driveway culverts, road intersectionculverts or aprons, irrigation crossings, mailboxes, driveway approaches, and allother identifiable installations that may be encountered during construction. TheContractor shall be responsible for all expenses relating to damage to public andprivate installations.Larimer County Rural Area Road Standards Page D-2October 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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Page 49 and 50: Chapter 6 - STORMWATER MANAGEMENTSe
Page 51 and 52: Chapter 7 - Bridges and Major Drain
Page 53 and 54: Chapter 8 - Environmental and Agric
Page 55 and 56: Chapter 8 - Environmental and Agric
Page 57 and 58: 9.1.3 DefinitionsChapter 9 - Roadwa
Page 59 and 60: CHAPTER 10 - ACCESS REQUIREMENTS AN
Page 61 and 62: Chapter 10 - Access Requirements an
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
Page 112 and 113: Appendix D - Construction Standards
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
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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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