GREEN BOOK - Georgia Soil and Water Conservation Commission

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Stream Flow Information: United States Department of the Interior Geological Survey Water Resources Division 1459 Peachtree Street, N.E. Atlanta, GA 30304 Flood Hazard, Wetlands and 404 Permit Information: U. S. Army Corps of Engineers (COE) Georgia Department of Natural Resources Environmental Protection Division Water Resources Branch Water Resources Management Program Floodplain Unit 7 Martin Luther King, Jr. Drive, Suite 440 Atlanta, GA 30334 (404) 656-6382 USDA Natural Resources Conservation Service Agriculture Information: Georgia Soil and Water Conservation Commission USDA Natural Resources Conservation Service Forestry Information: Georgia Forestry Commission 5-2 GaSWCC (Amended - 2000)
GEORGIA SOIL AND WATER CONSERVATION COMMISSION REGIONAL OFFICES Dade Catoosa Whitfield Murray Fannin Union Towns Rabun Walker Gilmer White Lumpkin Stephens Chattooga Gordon Pickens REGION 1 Dawson Hall Banks Franklin Hart Floyd Bartow Cherokee Forsyth REGION 2 Jackson Madison Elbert Polk Cobb Gwinnett Barrow Clarke Paulding REGION 3 Oconee Oglethorpe Haralson Douglas Fulton Dekalb Walton Wilkes Lincoln Carroll Clayton Newton Morgan Greene Teliaferro Columbia Heard Coweta Fayette Henry Spalding Butts Jasper Putnam Hancock Warren McDuffie Glascock Richmond Troup Quitman Harris Muscogee Marion Chattahoochee Clay Early Meriwether Stewart Seminole Randolph Miller Talbot Webster REGION 5 Baker Decatur Pike Upson Taylor Schley Lanier Sumter Terrell Lee Calhoun Dougherty Mitchell Grady Rockdale Macon Monroe Crawford REGION 4 Thomas Brooks Region 1 700 East 2nd Avenue, Suite J Rome, Georgia 30161-3359 Phone: 706-295-6131 Region 3 1500 Klondike Road Suite A109 Conyers, Georgia 30094 Phone: 770-761-3020 Peach Dooly Crisp Worth Bibb Houston Colquitt Turner Region 5 2700 Palmyra Road Albany, Georgia 31707-1845 Phone: 912-430-4480 Habersham Jones Twiggs Pulaski Bleckley Wilcox Tift Cook Baldwin Wilkinson Ben Hill Irwin Dodge Berrien Lowndes GaSWCC (Amended - 2000) 5-3 Lanier Washington Laurens Telfair Coffee Atkinson Echols Johnson Jeff Davis Treutlen Jefferson Wheeler Toombs Clinch Bacon Website www.ganet.org/gswcc Montgomery Ware Emanuel REGION 6 Appling Pierce Burke Jenkins Chandler Tattnall Charlton Evans Wayne Brantley Bulloch Long Screven Camden Bryan Liberty Glynn McIntosh Effingham Region 2 P.O. Box 8024 Athens, Georgia 30603 Phone: 706-542-9233 Chatham Region 4 3014 Heritage Road, Suite 1 Milledgeville, Georgia 31061 Phone: 912-445-5766 Region 6 117 Savannah Avenue Statesboro, Georgia 30458 Phone: 912-681-5241
Page 1 and 2: MANUAL FOR EROSION AND SEDIMENT CON
Page 3 and 4: PREFACE TO THE FIFTH EDITION The fo
Page 5 and 6: FOREWORD Perhaps the most harmful d
Page 7 and 8: TABLE OF CONTENTS GaSWCC (Amended -
Page 9 and 10: CHAPTER 1 THE EROSION AND SEDIMENTA
Page 11 and 12: The law could have a significant im
Page 13 and 14: THE MANUAL This manual has been ass
Page 15 and 16: CHAPTER 2 SEDIMENT AND EROSION CONT
Page 17 and 18: GENERAL DESIGN PRINCIPLES For an er
Page 19 and 20: Figure 2-13. - A temporary sediment
Page 21 and 22: Du - DUST CONTROL ON DISTURBED AREA
Page 23 and 24: Re - RETAINING WALL A constructed w
Page 25 and 26: GEORGIA UNIFORM CODING SYSTEM FOR S
Page 27 and 28: Figure 3-1. - Soils information is
Page 29 and 30: 3-4 GaSWCC (Amended - 1995)
Page 31: STREAMS 0 1320 Perennial AU LEGEND
Page 35: 53 MILES TO CONCORD 0 1320 SCALE, I
Page 38 and 39: 24-HOUR CONTACT PERSON: The telepho
Page 40 and 41: to develop individual ordinances fr
Page 42 and 43: ted along with a preliminary site p
Page 44 and 45: spector, etc., should notify the lo
Page 48 and 49: 5-4 GEORGIA SOIL AND WATER CONSERVA
Page 50 and 51: 5-6 GEORGIA DEPARTMENT OF NATURAL R
Page 52 and 53: 5-8 GEORGIA FORESTRY COMMISSION WAT
Page 54 and 55: 5-10 Dade Walker Chattooga Catoosa
Page 60 and 61: 6-6 Rd Re Rt Sd1 Sd2 Sd3 Sr St Su T
Page 64 and 65: should be sized to permit passage o
Page 66 and 67: Project Name ______________________
Page 74 and 75: 6-20 Nutrient Removal Figure 6-1.1
Page 76 and 77: Legend: Tolerance to Flooding, Drou
Page 78 and 79: 6-24 Table 6-1.2 - Native Plant Gui
Page 80 and 81: 6-26 Table 6-1.2 - Native Plant Gui
Page 84 and 85: Plant seed one to three inches deep
Page 88 and 89: 6-34 2. If the area will eventually
Page 90 and 91: seeder, or hydraulic seeder (slurry
Page 92 and 93: 6-38 GaSWCC (Amended - 2000) Table
Page 94 and 95: Dade 6-40 Walker Chattooga Catoosa
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Shrubs and Small Trees Bayberry, Bi
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Innoculants All legume seed shall b
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6-46 Table 6-5.1. Fertilizer Requir
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6-48 GaSWCC (Amended - 2000) Broadc
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6-50 GaSWCC (Amended - 2000) Table
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6-54 Table 6-5.3. Durable Shrubs an
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6-56 Table 6-5.4. Trees for Erosion
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On slopes steeper than 3:1, sod sho
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6-60 Source: Va. DSWC INCORRECT COR
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6-62 GaSWCC (Amended - 2000)
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6-64 2. Causes soil to drop out of
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6-66 Figure 6-7.1 - Typical Install
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6-68 5. Users of anionic PAM shall
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LIVE BRANCHES DEAD STOUT STAKE LIVE
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MAINTENANCE Periodic inspection and
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6-80 A B Points A should be higher
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6-82 4. Excessive erosion does not
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6-86 Hard Surface Public Road 6" Mi
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Side Slopes All cuts and fills shal
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Depth and Grade Depth and grade may
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6-92 SILT FENCE POST POST SILT FENC
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The compacted ridge height shall be
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6-98 3. Hand tamp the soil under an
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6-104 Minimum 8' - 10' 50# - 150# S
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Permeability Hydrostatic heads do n
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Protective cover shall be applied i
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6-110 Discharge capacity, Q, in cfs
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6-112 WING WALL FOOTING STRAIGHT IN
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6-114 PREFABRICATED METAL STRUCTURE
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6-116 Vegetated Diversion Stable un
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MAINTENANCE Rock dams should be rem
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e. Minimum size 3-4 inch stone filt
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6-126 4"x4" Post 2"x4" 0.5" - 1.0"
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Type B Silt Fence Sd1-B Though only
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6-130 NOTE: Flow Flow EMBEDDING DET
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6-132 Table 6-20.3. Post Size Minim
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6-134 18" min. 18" min. 18" min. 18
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6-136 Flow End of fabric fence Post
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Gravel Drop Inlet Protection Sd2-G
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6-142 2" - 4" 3' - 4' 2" Weep Holes
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6-144 Pavement Flow Gutter FLOW B B
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6-146 TO BE SHOWN ON THE EROSION AN
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Shape It is recommended that the de
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CONSTRUCTION SPECIFICATIONS Site Pr
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6-154 Examples: Plan Views - not to
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6-156 T Zu Zd = = = Vs Vc Top width
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6-158 GaSWCC (Amended - 2000) HEAD-
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Angle of stub to be shown Angle bas
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6-164 TEMPORARY SEDIMENT BASIN DESI
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TEMPORARY SEDIMENT BASIN DESIGN SHE
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6-168 TEMPORARY SEDIMENT BASIN DESI
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TEMPORARY SEDIMENT BASIN DESIGN SHE
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6-172 Cross-Sectional Detail of Eme
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Table 6-23.1. Corrugated Metal Pipe
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6-176 Coarse Aggregate 6" 1/2 Diame
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Alignment The apron shall be locate
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Figure 6-24.2 - Design of Outlet Pr
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6-184 Virginia Department of Highwa
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2. Grooving consists of using machi
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6-188 Each lift of the fill is comp
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Bonding - Use one of the following
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6-192 Table 6-27.1. Permissible Vel
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T = design top width D = design dep
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6-196 Table 6-27.2 - Velocity, Top
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6-198 STORMWATER CONVEYANCE CHANNEL
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1. Compute peak rate of runoff for
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A-1-2 GaSWCC
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Contents Page Chapter 1: Introducti
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Worksheets 2: Runoff curve number a
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Time parameters Chapter 3 describes
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Limitations To save time, the proce
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8 Curves on this sheet are for the
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Table 2-2 assumptions apply? Yes De
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Table 2-2b. - Runoff Curve Numbers
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Table 2-2d. - Runoff Curve Numbers
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Composite CN 90 90 100 90 80 70 60
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Example 2-4 This example is also ba
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Figure 2-6. - Worksheet 2 for Examp
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Figure 2-8. - Worksheet 2 for Examp
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Watercourse slope, ft/ft .50 .20 .1
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Reservoirs or lakes Sometimes it is
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A-1-32 GaSWCC
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Table 4-2. - Adjustment Factor (Fp)
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500 Ia/P = 0.10 0.20 0.25 300 0.30
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1000 800 Ia/P = 0.10 600 0.30 500 0
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A-1-40 GaSWCC
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Development of composite flood hydr
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Example 5-2 Compute the 25-year fre
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Figure 5-2. - Worksheet 5b for Exam
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Figure 5-4. - Worksheet 5b for Exam
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A-1-50 GaSWCC 5-10 (210-VI-TR-55, S
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A-1-52 GaSWCC 5-12 (210-VI-TR-55, S
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A-1-54 GaSWCC 5-14 (210-VI-TR-55, S
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A-1-56 GaSWCC 5-16 (210-VI-TR-55, S
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A-1-58 GaSWCC 5-18 (210-VI-TR-55, S
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A-1-60 GaSWCC 5-20 (210-VI-TR-55, S
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A-1-62 GaSWCC 5-22 (210-VI-TR-55, S
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A-1-64 GaSWCC 5-24 (210-VI-TR-55, S
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A-1-66 GaSWCC 5-26 (210-VI-TR-55, S
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A-1-68 GaSWCC 5-28 (210-VI-TR-55, S
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A-1-70 GaSWCC 5-30 (210-VI-TR-55, S
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A-1-72 GaSWCC 5-32 (210-VI-TR-55, S
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A-1-74 GaSWCC 5-34 (210-VI-TR-55, S
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A-1-76 GaSWCC 5-36 (210-VI-TR-55, S
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A-1-78 GaSWCC 5-38 (210-VI-TR-55, S
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A-1-80 GaSWCC 5-40 (210-VI-TR-55, S
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A-1-82 GaSWCC 5-42 (210-VI-TR-55, S
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A-1-84 GaSWCC 5-44 (210-VI-TR-55, S
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A-1-86 GaSWCC 5-46 (210-VI-TR-55, S
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A-1-88 GaSWCC 5-48 (210-VI-TR-55, S
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Vs ( ) Vr Storage volume Runoff vol
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The developed-condition peak discha
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Example 6-2: Estimating V s , two-s
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Example 6-3: Estimating q o A devel
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Example 6-4: Estimating V s , Tabul
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A-1-100 GaSWCC
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A-1-102 GaSWCC
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Rainfall Distribution Type I Type I
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125° 120° 115° 110° 105° 100°
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125° 120° 115° 110° 105° 100°
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125° 120° 115° 110° 105° 100°
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A-1-112 GaSWCC
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A-1-114 GaSWCC
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Project Location Circle one: 1. Run
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Worksheet 4: Graphical Peak Dischar
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Worksheet 5b: Tabular hydrograph di
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Elevation or stage 2. Frequency . .
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A-1-124 GaSWCC
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Table F-1 - Coefficients for the Eq
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A-2-2 PERCENT OF HYDRAULIC LENGTH M
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A-2-4 PEAK DISCHARGE, CFS/INCH OF R
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A-2-6 Table A-2.1 - Slope Adjustmen
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Example A-2.4 A 5-acre pond is loca
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35 3.2 3.3 34 33 32 31 30 DADE 3.4
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35 4.7 4.8 34 33 32 31 30 4.6 4.9 D
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6.0 35 6.2 6.4 34 33 32 31 30 6.6 D
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35 7.6 7.8 34 33 32 31 30 8.0 DADE
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1. Determine “C” by observation
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A-3-4 Length Ft. Equation solved by
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RAINFALL INTENSITY IN INCHES PER HO
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RAINFALL INTENSITY IN INCHES PER HO
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A-3-10 GaSWCC (Amended - 1995) Tabl
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Column 9: Flood Frequency Flood fre
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B-1-4 GaSWCC
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SOIL SERIES INTERPRETATIONS ESTIMAT
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APPENDIX B-2 Estimating Soil Erosio
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Water Erosion Prediction Project (W
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County R County R County R Jenkins
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B-2-7 GaSWCC (Amended - 1995) Table
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U.S. Department of Agriculture Sect
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GUIDE FOR DEVELOPING THE SOIL ERODI
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APPENDIX C Riprap DEFINITION A reve
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Size Inches (Sq. opening) N.S.A. No
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Diameter of Stone in Inches 60 40 2
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Table C-6. - Velocity, Top Width an
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APPENDIX D Model Soil Erosion and S
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Model Soil Erosion And Sedimentatio
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33. Vegetative Erosion and Sediment
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B. MINIMUM REQUIREMENTS/BMP’s 1.
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of vegetation until all land-distur
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3. Maps, drawings, and supportive c
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B. STOP-WORK ORDERS 1. For the firs
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CONVERSION FACTORS TO CONVERT: MULT
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APPENDIX F GLOSSARY The list of ter
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DESILTING AREA - An area of grass,
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FLOOD - An overflow or inundation t
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INTAKE (1) The headworks of a condu
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NATURAL GROUND SURFACE - The ground
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SLOPE CHARACTERISTICS - Slopes may
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REFERENCES 1. Agricultural Research
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44. USDA Agricultural Research Serv
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GREEN BOOK - Georgia Soil and Water Conservation Commission

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