Integrated Training Area Management EA and Final FNSI

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Project NameOld RichardsonHighwayUpgradeInstitutionalControls –General Phase 1VegetationManagement –General Phase 1Project DescriptionThis project will improve a 5000 m section of an existing road. The Old Richardson Highway connects toWindy Ridge Road and is a major route for troop activities associated with the Texas and WashingtonImpact Ranges. This section of road lies on military lands south of the keyhole and is characterized byareas of transect rill erosion and poorly defined ditches and has received impacts from Stryker traffic.This project will improve access and control erosion by improving drainage through grading, reestablishingditches and the installation of geotextile, fill material, water bars and culverts.Donnelly Training East has numerous unmarked entrance points throughout its perimeter, especiallyalong 33 Mile Loop Road and the Richardson Highway. It is vitally important that the public, especiallyrecreational users, know where the training area boundaries are located along the trails and roads thatenter military land. In addition, there are a series of unmarked stocked lakes that provide excellentrecreational opportunities for military and non-military land users. This project will install institutionalcontrol signs at significant points throughout the training area to control and confine access and ensureappropriate recreational use of military lands. In addition, this project will help prevent military personnelfrom accidentally moving outside of military lands during training exercises.Donnelly Training Area East has numerous areas that require minor vegetation management throughmowing, fertilizing and reseeding. These areas include firing and impact berms and small cleared areaswithin the Wills Range Small Arms Complex, 33 Mile Loop Road, the CTR, the UAV, and Windy RidgeRoad. This project will provide as needed management activities to promote vegetation stand health,sustainability and height/spread control.ApproximateAcresImpacted12.41100_____________________________________________________________________________________________Environmental AssessmentUnited States Army Alaska, Integrated Training Area Management ProgramManagement Plan A-11
APPENDIX B: BEST MANAGEMENT PRACTICESBest ManagementPracticeAsphaltBrush BarrierCheck DamsChemical StabilizationCobble DrainsConstruction EntrancesConstruction Sequencing(General) ConstructionSite Waste Management(Permanent) Diversions(Temporary) DiversionDikes, Earth Dikes, &Interceptor DikesDrainage SwalesBest Management Practice DescriptionAsphalt can be used as a structural material for erosion control much like reinforcedconcrete. It can be used at stream crossings or to reinforce specific erosion proneareas along roadways or within training areas.Brush barriers are perimeter sediment control structures used to prevent soil in stormwater runoff from leaving a construction site. Brush barriers are constructed ofmaterial such as small tree branches, root mats, stone, or other debris left over fromsite clearing and grubbing.Check dams are small, temporary dams constructed across a swale or channel.Check dams can be constructed using gravel, rock, sandbags, logs, or straw balesand are used to slow the velocity of concentrated flow in a channel. By reducing thevelocity of the water flowing through a swale or channel, check dams reduce theerosion in the swale or channel. As a secondary function, check dams can also beused to catch sediment from the channel itself or from the contributing drainage areaas storm water runoff flows through the structure.Chemical stabilizers, also known as soil binders or soil palliatives, providetemporary soil stabilization. Examples of chemical adhesives include anionic asphaltemulsion, latex emulsion, resin-water emulsions, and calcium chloride. Materials aresprayed onto the surface of exposed soils to hold the soil in place and protect againsterosion from runoff and wind.Cobble drains are typically installed underneath roads crossing sub-surface waterflows to prevent fill material saturation and impairment. Cobble drains typically runto a downhill slope and are installed perpendicular to the road base. The outlet is leftopen.The purpose of stabilizing entrances to a construction site is to minimize the amountof sediment leaving the area as mud attached to motorized vehicles. Installing a padof gravel over filter cloth where construction traffic leaves a site can help stabilize aconstruction entrance. As a vehicle drives over the gravel pad, mud and sediment areremoved from the vehicle's wheels and offsite transport of soil is reduced.Construction sequencing requires creating and following a work schedule thatbalances the timing of land disturbance activities and the installation of measures tocontrol erosion and sedimentation, in order to reduce on-site erosion and off-sitesedimentation.Building materials and other construction site wastes must be properly managed anddisposed of to reduce the risk of pollution from materials such as surplus or refusebuilding materials or hazardous wastes.Diversions can be constructed by creating channels across slopes with supportingearthen ridges on the bottom sides of the slopes. The ridges reduce slope length,collect storm water runoff, and deflect the runoff to acceptable outlets that convey itwithout erosion.Earthen perimeter controls usually consist of a dike or a combination dike andchannel constructed along the perimeter of a disturbed site. Simply defined, anearthen perimeter control is a ridge of compacted soil, often accompanied by a ditchor swale with a vegetated lining, located at the top or base of a sloping disturbed area.A drainage swale is a channel with a lining of vegetation, riprap, asphalt, concrete,or other material and is used to intercept and divert flow to a suitable outlet. It isconstructed by excavating a channel and applying the appropriate stabilization. Theycan be used to convey runoff from the bottom or top of a slope. For swales draininga disturbed area, the outlet can be to a sediment trapping device prior to its release._____________________________________________________________________________________________Environmental AssessmentUnited States Army Alaska, Integrated Training Area Management ProgramManagement Plan B-1
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DEPARTMENT OF THE ARMYUNITED STATES
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TABLE OF CONTENTSCHAPTER 1: PURPOSE
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Table 3.9 Summary of Impacts to Hum
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and Training Land Program, the rang
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• Establish a defined land condit
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Donnelly Training AreaDonnelly Trai
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determine whether additional NEPA a
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Table 2.2 Summary of Environmental
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CHAPTER 3: DESCRIPTION OF THE AFFEC
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Maneuver Trail Maintenance and Upgr
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Mungoven 2001). Engineering soil ty
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projects and would result in wide,
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growth. Wind and sand fences would
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iological impacts of military train
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willow scrub communities are common
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disturbed. Further, hardening low w
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disturbance or removal, best manage
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SRAThrough the SRA program, soldier
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Ship Creek (from the Glenn Highway
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effective site drainage. Required p
Page 45 and 46: Game 1998). More information on wil
Page 47 and 48: Fort Wainwright and associated land
Page 49 and 50: Long-term beneficial impacts to wil
Page 51 and 52: 1998).The Alaska Interagency Wildla
Page 53 and 54: Prescribed burns, mechanical thinni
Page 55 and 56: unplanned fires, soldiers are direc
Page 57 and 58: USARAK also implemented the USARTRA
Page 59 and 60: LRAM projects beneficial to public
Page 61 and 62: Cumulative ImpactsPast military act
Page 63 and 64: Two surveys conducted on Yukon Trai
Page 65 and 66: LRAM activities under Alternative 1
Page 67 and 68: 3.9.1 Affected EnvironmentFort Rich
Page 69 and 70: SRA program, which educates soldier
Page 71 and 72: 3.10.2 Environmental ConsequencesAl
Page 73 and 74: Fort Richardson receives few compla
Page 75 and 76: Table 3.11 Summary of Impacts 1 to
Page 77 and 78: oads and hauling fill and rock mate
Page 79 and 80: CHAPTER 4: PREPARERS AND CONTRIBUTO
Page 81 and 82: Benson, A.M. 1999. Distribution of
Page 83 and 84: Neely, R. J. 2001. Early Mining His
Page 85 and 86: CHAPTER 6: AGENCIES AND INDIVIDUALS
Page 87 and 88: Project NameBulldog TrailWidening P
Page 89 and 90: Project NameYukon TrainingArea Demo
Page 91 and 92: Project NameYukon TrainingArea Firi
Page 93 and 94: Project NameEddy Drop ZoneVegetatio
Page 95: Project Name33 Mile LoopRoad Shortc
Page 99 and 100: Sediment Trap(Permanent) SeedingSil
Page 101 and 102: APPENDIX C: SAMPLE RECORD OF ENVIRO
Page 103 and 104: APPENDIX D: ITAM PROJECT ASSESSMENT
Page 105 and 106: Fire ManagementYes No□ □ Could
Page 107 and 108: APPENDIX E: AGENCY COMMENTSThe foll
Page 109 and 110: ___________________________________
Page 111 and 112: ___________________________________
Page 113 and 114: Sent: Monday, June 13, 2005 5:00 PM
Page 115 and 116: Second paragraph - I do not underst
Page 117 and 118: sentence could read, "The trees are
Page 119 and 120: The third paragraph seems too speci
Page 121: USARAK does not have a current five
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Integrated Training Area Management EA and Final FNSI

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