APPLICANT PACKET - Virginia Department of Conservation and ...

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STD & SPEC 3.08 CULVERT INLET PROTECTION Practice Description A sediment filter located at the inlet to storm sewer culverts, used to prevent sediment from entering, accumulating in and being transferred by a culvert and associated drainage system prior to permanent stabilization of a disturbed project area; and, to provide erosion control at culvert inlets during the phase of a project where elevation and drainage patterns change, causing original control measures to be ineffective or in need of removal. Conditions Where Practice Applies Where culvert and associated drainage system is to be made operational prior to permanent stabilization of the disturbed drainage area. Different types of structures are applicable to different conditions (see Plates 3.08-1 and 3.08-2). General Guidelines (All Types) 1. The inlet protection device shall be constructed in a manner that will facilitate clean-out and disposal of trapped sediment and minimize interference with construction activities. 2. The inlet protection devices shall be constructed in such a manner that any resultant ponding of stormwater will not cause excessive inconvenience or damage to adjacent areas or structures. 3. Design criteria more specific to each particular inlet protection device will be found in Plates 3.08-1 through 3.08-2. Construction Specifications 1. Silt Fence Culvert Inlet Protection a. The height of the silt fence (in front of the culvert opening) shall be a minimum of 16 inches and shall not exceed 34 inches. b. Extra strength filter fabric with a maximum spacing of stakes of 3 feet shall be used to construct the measure. c. The placement of silt fence should be approximately 6 feet from the culvert in the direction of incoming flow, creating a "horseshoe" shape as shown in Plate 3.08-1. d. If silt fence cannot be installed properly or the flow and/or velocity of flow to the culvert protection is excessive and may breach the structure, the stone combination noted in Plate 3.08-1 should be utilized. Applicant Packet 47 June 2001 CIP
2. Culvert Inlet Sediment Trap a. Geometry of the design will be a "horseshoe" shape around the culvert inlet (see Plate 3.08-2). b. The toe of riprap (composing the sediment filter dam) shall be no closer than 24" from the culvert opening in order to provide an acceptable emergency outlet for flows from larger storm events. c. All other "Construction Specifications" found within Std. & Spec. 3.13, TEMPORARY SEDIMENT TRAP, also apply to this practice. d. The proper installation of the culvert inlet sediment trap is a viable substitute for the installation of the TEMPORARY SEDIMENT TRAP. Applicant Packet 48 June 2001
Page 1 and 2: VIRGINIA RESPONSIBLE LAND DISTURBER
Page 3 and 4: About the RLD Certification Exam/Te
Page 5 and 6: TABLE OF CONTENTS INTRODUCTION ....
Page 7 and 8: LAW AND REGULATIONS SECTION LEARNIN
Page 9 and 10: DISCUSSION OF REGUALTED LAND-DISTUR
Page 11 and 12: MINIMUM STANDARDS All regulated lan
Page 13 and 14: MS-17 Where construction vehicle ac
Page 15 and 16: PRINCIPLES AND PRACTICES SECTION LE
Page 17 and 18: FACTORS INFLUENCING EROSION There a
Page 19 and 20: Detachment by flowing water is conf
Page 21 and 22: The shape of slopes can affect eros
Page 23 and 24: The entire site work force should b
Page 25 and 26: Have sediment basins been installed
Page 27 and 28: Flumes 3.15 Temporary Slope Drain..
Page 29 and 30: The filter cloth utilized shall be
Page 31 and 32: STD & SPEC 3.03 CONSTRUCTION ROAD S
Page 33 and 34: STD & SPEC. 3.05 SILT FENCE Practic
Page 35 and 36: 2. The filter fabric shall be purch
Page 37 and 38: Applicant Packet 32 June 2001
Page 39 and 40: 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: Maintenance 1. The structure shall
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 and 92: Stone Placement: Placement of ripra
Page 93 and 94: STD & SPEC 3.20 ROCK CHECK DAMS Pra
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 105 and 106:
Applicant Packet 100 June 2001
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
Page 141 and 142:
Applicant Packet 136 June 2001
Page 143 and 144:
Maintenance All mulches and soil co
Page 145 and 146:
d. Weight shall average 0.90 lbs./s
Page 147 and 148:
TREATMENT-2: SOIL STABILIZATION MAT
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APPLICANT PACKET - Virginia Department of Conservation and ...

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