LARIMER COUNTY RURAL AREA ROAD STANDARDS

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APPENDIX E – CONSTRUCTION TESTING FREQUENCIESSoils AASHTO ASTM FrequencySampling T87 D420Soil Classification M145 D3282 Per soil type encounteredD2488/D2487Moisture-Density (Proctor)Per soil type encounteredStandard T99 D698 As specified in Geotechnical ReportModified T180 D1557 As specified in Geotechnical ReportDensity and Moisture Content T238 & T239 D2922 & D3017 "Right of Way"-Grading1/1000 cubic yards-Embankment (Subgrade)1/500 lf/lane (min. of 1 per street) 1’ vertical-Base Course1/500 lf/lane (min. of 1 per street)1/25 lf horizontal and per 1’ vertical (Min. 3 per-Structural Backfillstructure)-Utility Trench-Main1/100 lf horizontal & per 1.5'vertical-Services2 per service (vertical)-Manhole/Fire Hydrants 1/2'vertical within 2'alternating directions (min. of 4)Hot Mix Asphalt (HMA)Sampling T168 D979Density-Nuclear ---- D29501/500 lane feet (min. of 3 per street) per lift per areapaved-Coring T166 D2726 As required or directed. Establish correction forNuclear gauge.-Max. Theoretical (Rice) T209 D2041 As required or directed. Min. 1/2000 tonAsphalt Content1/500 tonsSolvent T164 D2172Ignition Oven T308 D6307Nuclear T287 D4125Thickness D3549 Core for thickness - 1/1000 lf/lane (min 1 perstreet)(4” diameter)Aggregate Gradation T27 D5444 or C136 1/1000 tonFractured Faces D5821 Within first 1000 ton then 1/10,000 tonLottman (CP-L 5109)(Method B) Within first 1000 ton then 1/10,000 tonFine Aggregate Angularity T 304 C 1252 Within first 1000 ton then 1/10,000 tonMix Verification Test –(to verify that field produced HMAconforms to approved JMF)Includes – Air Voids, VMA, VFA,Within first 1000 ton then 1/10,000 tonAC Content, Rice, Gradation,Stability (HVEEM)ConcreteSampling T141 C172Mold and Cure T23 C31Transportation of Cylinders T23 C31Physical Properties1/100 cubic yards/One per day Min.Slump T119 C143Air Content T152 C231Compressive Strength T22 C39Obtaining Cores T24 C42 As required or directedCompressive Strength of Cores T24 C42 As required or directedAggregate Base CourseGradation T27 C136 Per source or as required or directedMoisture-Density (Proctor)Per source or as required or directedModified T180 D1557 As specified in Geotechnical Report orSpecificationsStandard T99 D698 As specified in As specified in Geotechnical Reportor Specifications Geotechnical ReportDensity/ Moisture Content1/1000 lf/Lane--Min. 3 per streetLarimer County Rural Area Road Standards Page E-1October 22, 2007
APPENDIX F – GUIDELINES FOR TRAFFIC IMPACT STUDIESF.1 PURPOSE AND OVERVIEWA Traffic Impact Study is required to analyze the effects of a proposed development or otherland use action on the transportation system in order to determine if adequate public facilitiesexist to serve the proposed development, and to clearly identify any improvements required tomitigate the impacts on the transportation system. The applicant for a development proposal orother land use action must submit a Traffic Impact Study as described herein.F.1.1 Types of Traffic Impact StudiesLarimer County may require Traffic Impact Studies as follows:1. Paving Threshold Study. The County requires a Paving Threshold Study for anyproposed development or land use action that will impact unpaved or gravelroads as described in Section F.4 below.2. Intermediate Traffic Impact Study. The County requires an Intermediate TrafficImpact Study for any proposed development or land use action that will impactpaved roads as described in Section F.5.3. Full Traffic Impact Study. The County requires a Full Traffic Impact Study for aproposed development or land use action that will have a major effect upontraffic, as described in Section F.6.4. Any proposed development or land use action which creates less than three newdwelling units or generates less than twenty-one new daily trips will not berequired to submit a traffic impact study. Such development would, however, berequired to pay transportation capital expansion fees in effect at the time.F.1.2 Responsibility and QualificationsThe responsibility for assessing the traffic impacts associated with a proposeddevelopment or other land use action rests with the Applicant. Paving Threshold andTraffic Impact Studies shall be prepared under the supervision of a professionalengineer registered in the State of Colorado with appropriate experience intransportation and traffic engineering.F.1.3 ScopingThe applicant is required to contact the Engineer to arrange for scoping of the TIS. Thepurpose of the scoping is to determine and document the parameters for the study oftraffic impacts for a specific development project. The parameters determined in thescoping represent general agreement between the County and the consulting engineer,but they may not be all inclusive. The Engineer retains the right to require any additionalinformation and / or analysis to complete an evaluation of the proposed developmentproject.It is incumbent upon the Applicant to supply a completed Transportation Impact StudyBase Assumptions Form and be prepared during scoping to discuss:1. Previous TIS prepared for the site, if any2. Location of the siteLarimer County Rural Area Road Standards Page F-1October 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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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
Page 132 and 133: Appendix F - Guidelines for Traffic
Page 140 and 141: APPENDIX G - DESIGN AND CONSTRUCTIO
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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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