LARIMER COUNTY RURAL AREA ROAD STANDARDS

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Appendix D – Construction StandardsSection D.2 Revisions to CDOT Standards Specifications for Road and Bridge ConstructionD. Excavation, Removals And Embankment1. ScopeThe work covered by this subsection concerns the furnishing of all labor,equipment, supplies and materials necessary to perform clearing,grubbing, removal of objectionable materials from the right-of-way prior tograding operations, and placement of embankment to conformity withlines, grades and typical sections as shown on the plans or as staked.2. Clearing and GrubbingThe natural ground surface shall be cleared of all vegetation such astrees, logs, upturned stumps, roots of downed trees, brush, grass, weedsand all other objectionable materials within the limits of the construction.All surface objects and all trees, stumps, roots and other protrudingobstructions, not designated to remain, shall be cleared and/or grubbed,including mowing, as required, except undisturbed stumps and roots andnonperishable solid objects which will be a minimum of 2 ft belowsubgrade or slope of embankments. Trees which are to be removed shallbe removed in such a manner as not to injure standing trees, plants, andimprovements which are to remain.3. Removal and Disposal of MaterialsAll materials removed shall be disposed of outside of the right-of-way. Noaccumulation of flammable material shall remain on or adjacent to theright-of-way. The roadway and related work areas shall be left with a neatand finished appearance.D.2.3 Revision of Section 202 – Removal of AsphaltREVISION OF SECTION 202REMOVAL OF ASPHALT (PLANING)In subsection 202.09 delete the last paragraph and replace with the following:The longitudinal surface smoothness of the roadway shall conform to requirements ofSubsection 105.07 – Conformity to Roadway Smoothness Criteria.Larimer County Rural Area Road Standards Page D-7October 22, 2007
Appendix D – Construction StandardsSection D.2 Revisions to CDOT Standards Specifications for Road and Bridge ConstructionD.2.4 Revision of Section 203 – Excavation and EmbankmentREVISION OF SECTION 203EXCAVATION AND EMBANKMENTSubsection 203.03 (a), first paragraph, shall be deleted and replaced with the following:(a)Embankment Material. Embankment material shall consist of approved materialacquired from excavations, including Contractor’s source, hauled and placed inembankments.Contractor’s source material shall have a minimum R-value of 15 ,and shall be equal toor greater than the design R-value required for the road when tested by the HveemStabilometer, have a maximum dry density of not less that 90 p.c.f., and must be stablewhen tested in accordance with Colorado Procedure L-3102. The Contractor shallfurnish evidence that the material meets the requirements of this section and shall payfor such tests as may be required to show compliance. All materials shall be sampledand tested in accordance with appropriate CDOT or AASHTO procedures.D.2.5 Revision of Section 206 – Excavation and Embankment forStructuresREVISION OF SECTION 206EXCAVATION AND BACKFILL FOR STRUCTURESSubsection 206.02(a) shall include the following:Structure Backfill shall meet the requirements of Table 703-2, aggregate base course, Class 5or Class 6, and shall be used in all locations where Class 1 or Class 2 Structure Backfill isspecified.D.2.6 Revision of Section 217 – Herbicide TreatmentREVISION OF SECTION 217HERBICIDE TREATMENTSubsection 217.01 shall include the following:Herbicides shall be applied under all new paving and shall be applied to the surface directlybeneath the surfacing material.In Subsection 217.02 delete the first sentence and replace with the following:Larimer County Rural Area Road Standards Page D-8October 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 10 - Access Requirements an
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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
Page 110 and 111: APPENDIX D - CONSTRUCTION STANDARDS
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
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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