APPLICANT PACKET - Virginia Department of Conservation and ...

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Maintenance Once a riprap installation has been completed, it should require very little maintenance. It should, however, be inspected periodically to determine if high flows have caused scour beneath the riprap or filter fabric or dislodged any of the stone. Care must be taken to properly control sediment-laden construction runoff which may drain to the point of the new installation. If repairs are needed, they should be accomplished immediately. Applicant Packet 87 June 2001
STD & SPEC 3.20 ROCK CHECK DAMS Practice Description Small temporary stone dams constructed across a swale or drainage ditch, to reduce the velocity of concentrated stormwater flows, thereby reducing erosion of the swale or ditch. This practice also traps sediment generated from adjacent areas or the ditch itself, mainly by ponding of the stormwater runoff. Field experience has shown it to perform more effectively than silt fence or straw bales in the effort to stabilize "wet-weather" ditches. Conditions Where Practice Applies This practice, utilizing a combination of stone sizes, is limited to use in small open channels that drain 10 acres or less. It should not be used in a live stream as the objective should be to protect the live watercourse. Some specific applications include: 1. Temporary ditches or swales that because of their short length of service, cannot receive a nonerodible lining but still need protection to reduce erosion. 2. Permanent ditches or swales, which for some reason, cannot receive a permanent non-erodible lining for an extended period of time. 3. Either temporary or permanent ditches or swales which need protection during the establishment of grass linings. 4. An aid in the sediment trapping strategy for a construction site. This practice is not a substitute for major perimeter trapping measures such as a SEDIMENT TRAP (Std. & Spec. 3.13) or a SEDIMENT BASIN (Std. & Spec. 3.14). Applicant Packet 88 June 2001 CD
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VIRGINIA RESPONSIBLE LAND DISTURBER
Page 3 and 4:
About the RLD Certification Exam/Te
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TABLE OF CONTENTS INTRODUCTION ....
Page 7 and 8:
LAW AND REGULATIONS SECTION LEARNIN
Page 9 and 10:
DISCUSSION OF REGUALTED LAND-DISTUR
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MINIMUM STANDARDS All regulated lan
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MS-17 Where construction vehicle ac
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PRINCIPLES AND PRACTICES SECTION LE
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FACTORS INFLUENCING EROSION There a
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Detachment by flowing water is conf
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The shape of slopes can affect eros
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The entire site work force should b
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Have sediment basins been installed
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Flumes 3.15 Temporary Slope Drain..
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The filter cloth utilized shall be
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STD & SPEC 3.03 CONSTRUCTION ROAD S
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STD & SPEC. 3.05 SILT FENCE Practic
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2. The filter fabric shall be purch
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Applicant Packet 32 June 2001
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STD & SPEC 3.07 STORM DRAIN INLET P
Page 41 and 42: 2. Gravel and Wire Mesh Drop Inlet
Page 43 and 44: 3. Block and Gravel Drop Inlet Sedi
Page 45 and 46: 4. Excavated Drop Inlet Sediment Tr
Page 47 and 48: 5. Gravel Curb Inlet Sediment Filte
Page 49 and 50: 6. Block and Gravel Curb Inlet Sedi
Page 51 and 52: Maintenance 1. The structure shall
Page 53 and 54: 2. Culvert Inlet Sediment Trap a. G
Page 55 and 56: Applicant Packet 50 June 2001
Page 57 and 58: STD & SPEC 3.09 TEMPORARY DIVERSION
Page 59 and 60: STD & SPEC 3.10 TEMPORARY FILL DIVE
Page 61 and 62: STD & SPEC 3.11 TEMPORARY RIGHT-OF-
Page 63 and 64: TABLE 3.11-A SPACING OF RIGHT OF WA
Page 65 and 66: DV STD & SPEC 3.12 DIVERSION Practi
Page 67 and 68: . Disturbed areas draining into the
Page 69 and 70: 5. The earthen embankment shall be
Page 73 and 74: Using the Unified Soil Classificati
Page 77 and 78: 12. Safety: All state and local req
Page 79 and 80: TSD STD & SPEC 3.15 TEMPORARY SLOPE
Page 81 and 82: Table 3.15-A SIZE OF SLOPE DRAIN Ma
Page 85 and 86: 1. (a) Seeding with straw mulch and
Page 87 and 88: STD & SPEC 3.18 OUTLET PROTECTION P
Page 89 and 90: STD & SPEC 3.19 RIPRAP Practice Des
Page 91: Stone Placement: Placement of ripra
Page 97 and 98: STD & SPEC 3.24 TEMPORARY VEHICULAR
Page 99 and 100: e. The culvert(s) shall be covered
Page 103 and 104: j. Non-erodible materials such as r
Page 107 and 108: STD & SPEC 3.26 DEWATERING STRUCTUR
Page 109 and 110: 2. Straw Bale/Silt Fence Pit (see P
Page 111 and 112: Maintenance (All dewatering structu
Page 113 and 114: Fill Slope Applications For Areas W
Page 115 and 116: STD & SPEC 3.31 TEMPORARY SEEDING T
Page 117 and 118: TABLE 3.31-B ACCEPTABLE TEMPORARY S
Page 119 and 120: the seeding rate of any spring seed
Page 121 and 122: 3. Appropriate seeding mixtures for
Page 123 and 124: TABLE 3.32-B SITE SPECIFIC SEEDING
Page 125 and 126: Seedbed Requirements: Vegetation sh
Page 127 and 128: lime, fertilizer and seed. Legume i
Page 129 and 130: APPENDIX 3.32-b KEYS TO SUCCESSFUL
Page 131 and 132: Sources: Readily available as seed
Page 133 and 134: 7. Sericea Lespedeza (Lespedeza cun
Page 135 and 136: Quality of Sod 1. Sod used shall be
Page 137 and 138: Maintenance of Established Sod 1. D
Page 139 and 140: Cool Season Grasses 4 lbs. nitrogen
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Maintenance All mulches and soil co
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d. Weight shall average 0.90 lbs./s
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TREATMENT-2: SOIL STABILIZATION MAT
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