Erosion and Sediment Pollution Control Program Manual.pdf

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RETIREMENT OF HAUL ROADS, SKID ROADS, SKID TRAILS, AND LANDINGS When a tract or parcel within a harvest area has been completed, all haul roads, skid trails, and landings associated with that tract or parcel should be retired; even while timbering continues on other tracts and parcels. To do so, the following guidelines are recommended: 1. Regrade all road and landing surfaces to approximate original contour. Scarify compacted soils in preparation for seeding. 2. Remove ditch relief culverts and replace them with waterbars or broad-based dips. 3. Remove all temporary stream and wetland crossings and stabilize disturbed areas. Install or restore waterbars at appropriate distances on the approaches to the stream crossings. 4. Seed and mulch disturbed areas with seed mixtures appropriate for site conditions, such as shade tolerant, steep slope mixture, acid tolerant, etc. and further identified in Tables 11.3, 11.4 and 11.5. Blanket disturbed areas within 50 feet of stream channels or wetlands. Armstrong Conservation District 363-2134-008 / March 31, 2012 / Page 302
CHAPTER 15 - STREAMBANK STABILIZATION Upon completion of work within a stream channel, disturbed areas must be stabilized to prevent erosion before diverted flows are redirected into the disturbed area of the channel. The type of stabilization to be used depends upon the size of the stream channel, its flow conditions, soils, and considerations for migration of aquatic life. The form of bank protection should mimic the natural conditions as much as possible, while providing sufficient protection for the anticipated flows from the design storm events. There are many products and methods available to the designer. This chapter addresses some of the most commonly used methods. These methods are also useful for lake shore restoration. Other methods, unless specifically ruled out, will be considered on a case-by-case basis. For additional information on the proper selection, design, and installation of streambank protection, the Department recommends searching for “streambank protection” on the NRCS website http://directives.sc.egov.usda.gov. Source Unknown Bank stabilization projects are often located on the outside banks of meanders. In such cases, it is usually necessary to extend the protection a certain distance upstream and downstream of the affected areas to prevent future scour. The minimum distances that the protection should be extended are shown in Figure 15.2. Upstream and downstream ends must be keyed into the bank per General Permit 3. Consideration should also be given to keying the bottom into the stream bed. VEGETATION Seeding disturbed areas with a perennial grass seed mixture is a relatively inexpensive means of achieving stabilization. In many cases, heartier vegetation, such as shrubs or other woody plants, will be required to provide scour protection. The seed mixture and other vegetation chosen 363-2134-008 / March 31, 2012 / Page 303
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EROSION AND SEDIMENT POLLUTION CONT
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FOREWORD The various Best Managemen
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TABLE OF CONTENTS Page Foreword ...
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Waterbars .........................
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Table Number Name Page 11.4 Recomme
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Figure Number Name Page 7.7 Graphic
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STANDARD CONSTRUCTION DETAILS Numbe
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CHECKLISTS, STANDARD E&S WORKSHEETS
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are cases where sheet flow has occu
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is replaced following earthmoving,
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CHAPTER 1 - REQUIRED E&S PLAN CONTE
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topography of the site should be in
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efore earth disturbance occurs with
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is classified as High Quality (HQ)
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install the proposed perimeter BMPs
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detail(s) for the specific BMP. In
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CHAPTER 3 - SITE ACCESS This chapte
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ROCK CONSTRUCTION ENTRANCE WITH WAS
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RUMBLE PAD Pre-constructed rumble p
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3 feet should be avoided wherever p
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WATERBAR - Sediment Removal Efficie
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BROAD-BASED DIP - Sediment Removal
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USDA Forest Service STANDARD CONSTR
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DITCH RELIEF CULVERT (Cross Drains)
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TURNOUT - Sediment Removal Efficien
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STANDARD CONSTRUCTION DETAIL #3-11
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3. Temporary bridges should be inst
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PA DEP STANDARD CONSTRUCTION DETAIL
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WETLAND CROSSING Wetland crossings
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Adapted from PA DEP GP-8 FIGURE 3.8
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FIGURE 3.10 Rigid or Flexible Pipe
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PA DEP FIGURE 3.12 In-stream Coffer
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EARTHWORK WITHIN LAKES AND PONDS NO
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FIGURE 3.15 Turbidity Barrier Insta
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DEWATERING WORK AREAS - Wherever wa
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(Additional Notes for Standard Cons
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SITE HOUSEKEEPING AND MATERIALS MAN
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Prefabricated Washout Containers Ca
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CHAPTER 4 - SEDIMENT BARRIERS AND F
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The maximum slope length above a co
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STANDARD CONSTRUCTION DETAIL #4-1 C
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COMPOST FILTER BERM - Sediment Remo
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Installation - Compost filter berms
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STANDARD CONSTRUCTION DETAIL # 4-4
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ROCK FILTER OUTLET - Sediment Remov
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York County Conservation District 3
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Wherever there is a break or change
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A chain link fence should be instal
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SEDIMENT FILTER LOG (FIBER LOG) - S
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WOOD CHIP FILTER BERM - Sediment Re
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STRAW BALE BARRIER - Sediment Remov
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NRCS FIGURE 4.4 Straw Bale Barrier
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A one foot thick layer of AASHTO #5
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The total width of the filter strip
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INLET FILTER BAG - Sediment Removal
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Adapted from Maine DEP Maximum drai
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TABLE 5.1 Pennsylvania Rainfall by
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LAND USE < 2% TABLE 5.2 Runoff Coef
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TR-55 Shallow Concentrated Flow Tha
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Figure 5.2 - RAINFALL REGION MAP A
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Figure 5.6 - RAINFALL REGION MAP E
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TABLE 5.6 5-Minute through 24-Hour
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TABLE 5.8 5-Minute through 24-Hour
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Drainage Area (A) - Determine the d
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Determination of Time of Concentrat
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CHAPTER 6 - RUNOFF CONVEYANCE BMPs
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DESIGN PROCEDURE 1. Calculate the r
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TABLE 6.3 Manning’s “n” for T
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National Technical Information Serv
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TABLE 6.6 Riprap Gradation, Filter
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TABLE 6.9 Recommended n Values to b
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TABLE 6.10 Maximum Permissible Velo
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It should be noted that Guernsey si
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Channel #1 (Diversion Channel) on W
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Channel #1 Segments “A” and “
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No more than one third of the shoot
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Stackhouse Bensinger, Inc. STANDARD
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Adapted from North Carolina DENR ST
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TEMPORARY SLOPE PIPE - Temporary sl
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BENCH - Benches (a.k.a. gradient te
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CHAPTER 7 - SEDIMENT BASINS DESIGN
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14. The discharge from a sediment b
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Adapted from VA SWCC PA DEP FIGURE
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Develop a Stage Storage Curve. Use
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Sediment shall be removed from the
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FIGURE 7.2 Skimmer Orifice Design C
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The principal spillway should be an
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Adapted from USDA, NRCS FIGURE 7.3
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H TABLE 7.3 - PIPE FLOW CAPACITY n
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TABLE 7.4 Concrete Base Requirement
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Embedded section of aluminum or alu
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Wherever total basin dewatering is
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Riprap at toe of embankment shall b
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Head TABLE 7.6 - GRASS-LINED EMERGE
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4. Once the depth of flow through t
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Anti-seep Collar Wherever soils sus
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4. The maximum spacing between coll
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Adapted from PennDOT RC-70 STANDARD
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FILTER DIAPHRAGM Filter diaphragms
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Sediment Storage Zone Dewatering Pr
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4. Greater surface area increases t
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Barrel/Riser Sediment Trap - This d
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Accumulated sediment shall be remov
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Wherever total trap dewatering is r
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At a minimum, outlet protection sho
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CHAPTER 9 - OUTLET PROTECTION As a
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FIGURE 9.1 Velocity Adjustment Nomo
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endwall. For discharges directly in
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Adapted from USDA NRCS STANDARD CON
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Adapted from USDA - NRCS FIGURE 9.3
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Determine whether maximum or minimu
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Adapted from ScourStop FIGURE 9.5 T
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STILLING BASIN (Plunge Pool) - Stil
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Adapted from USDOT, FHWA HEC 14 FIG
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Using the pipe slope (V:H) determin
Page 271 and 272: ENERGY DISSIPATER Energy dissipater
Page 273 and 274: EARTHEN LEVEL SPREADER LOCATION - E
Page 275 and 276: STRUCTURAL LEVEL SPREADER LOCATION
Page 277 and 278: The E&S plan should include such in
Page 279 and 280: Wherever the slope parallels the ro
Page 281 and 282: VA SWCC FIGURE 11.1 Stair Step Grad
Page 283 and 284: TOPSOIL APPLICATION Graded areas sh
Page 285 and 286: Site conditions such as soil limita
Page 287 and 288: Species Warm-Season Grasses Deerton
Page 289 and 290: 6. Use only in extreme southeastern
Page 291 and 292: Synthetic binders, or chemical bind
Page 293 and 294: EROSION CONTROL BLANKETS - There ar
Page 295 and 296: HYDRAULICALLY APPLIED BLANKETS Hydr
Page 297 and 298: PAM Specifications Anionic PAM mixt
Page 299 and 300: Adapted from VA DSWC FIGURE 11.5 So
Page 301 and 302: City of Portland, BDS FIGURE 11.6 T
Page 303 and 304: CHAPTER 13 - UTILITY LINE PROJECTS
Page 305 and 306: more viable. HDD may be considered
Page 307 and 308: STANDARD CONSTRUCTION DETAIL #13-1
Page 309 and 310: PA DEP STANDARD CONSTRUCTION DETAIL
Page 311 and 312: PA DEP STANDARD CONSTRUCTION DETAIL
Page 313 and 314: PA DEP FIGURE 13.1 Waterbar Install
Page 315 and 316: The following points should be cons
Page 317 and 318: SKID ROADS AND SKID TRAILS The prim
Page 319 and 320: The diversion channel should have a
Page 321: PA Timber Harvesting Packet FIGURE
Page 325 and 326: Figure 15.1 Riprap Streambank Prote
Page 327 and 328: GABIONS and Reno mattress have been
Page 329 and 330: PA DEP FIGURE 15.4 Reno Mattress St
Page 331 and 332: Adapted from VA DSWC FIGURE 15.5 Gr
Page 333 and 334: MISCELLANEOUS HARD ARMOR TECHNIQUES
Page 335 and 336: Natural colonization by surrounding
Page 337 and 338: INSTALLATION GUIDELINES Prepare the
Page 339 and 340: Branchpacking is the alternating of
Page 341 and 342: Fabric encapsulated soil is often u
Page 343 and 344: Fiber rolls, or coir logs, are cyli
Page 345 and 346: CHAPTER 16 - GRADING STANDARDS PA D
Page 347 and 348: CHAPTER 17 - AREAS OF SPECIAL CONCE
Page 349 and 350: Adapted from USDA NRCS FIGURE 17.2
Page 351 and 352: Adapted from USDA NRCS FIGURE 17.4
Page 353 and 354: enter the Act 2 Program, which is a
Page 355 and 356: No RECOMMENDED PROCESS FOR SITES WI
Page 357 and 358: Common Contaminants of Concern: Two
Page 359 and 360: Structural (Stabilization) Erosion
Page 361 and 362: ii. The siting and function of any
Page 363 and 364: SPECIAL PROTECTION WATERSHEDS Sourc
Page 365 and 366: impacts, including suitability of g
Page 367 and 368: SLOPE FAILURES PA DEP The Problem I
Page 369 and 370: TABLE 17.1 PROCESSES LEADING TO LAN
Page 371 and 372: GEOTHERMAL WELL DRILLING Source Unk
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Well (or Total Well Field) Flows Gr
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Project: COMPLETE PLAN CHECKLIST A.
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STANDARD E&S CONTROL PLAN TECHNICAL
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“A maintenance program, which pro
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Complies Deficient N/A Hydric soils
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Complies Deficient N/A Removal of t
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Complies Deficient N/A Standard E&S
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Sediment Traps (Chapter 8) Complies
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Permanent Stabilization Topsoil rep
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APPENDIX B - STANDARD E&S WORKSHEET
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STANDARD E&S WORKSHEET #2 Compost F
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STANDARD E&S WORKSHEET # 4 Reinforc
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STANDARD E&S WORKSHEET # 6 Super Si
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STANDARD E&S WORKSHEET # 8 Rock Fil
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STANDARD E&S WORKSHEET # 10 Rationa
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STANDARD E&S WORKSHEET # 12 Sedimen
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E L E V A T I O N (FT) STANDARD E&S
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STANDARD E&S WORKSHEET # 16 Sedimen
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BASIN NO. TEMP. OR PERM. Y (FT) Z S
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STANDARD E&S WORKSHEET # 20 Riprap
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STANDARD E&S WORKSHEET # 22 PLAN PR
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15. Until the site is stabilized, a
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APPENDIX D - STANDARDS FOR MAPS AND
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PLAN DRAWINGS Each bit of informati
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e carefully preserved and stored fo
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SOIL NAME CUTBANKS CAVE CORROSIVE T
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ROUGHNESS ELEMENT DISSIPATER - This
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2. Determine Discharge Velocity (VO
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From Figure F.8, VA/VO = 1.05 VA =
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Yo / D FIGURE F.4 Dimensionless Rat
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USDOT, FHWA HEC 14 FIGURE F.6 Flow
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FIGURE F.8 Average Velocity in Abru
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FIGURE F.10 Average Depth for Abrup
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FIGURE F.12 Riprap Size for Use Dow
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EXAMPLE - Given: Circular Concrete
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USDOT, FHWA HEC 14 FIGURE F.14 Impa
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designed to discharge all anticipat
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Figure G.1. Convex Contours and Slo
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Figure G.2. Turf Reinforcement Mat
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c. For subsurface discharge level s
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asin/trap, it should be off-line du
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Design to Avoid Downstream Erosion
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Down Slope Ground Cover Table G.2.
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VIII. OUTFALL DESIGN As previously
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Figure G.10. Rill/Gully Repair Figu
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X. SELECTED REFERENCES Pennsylvania
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APPENDIX H - DUST CONTROL Descripti
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Table H.2. Adhesives Used for Dust
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Tree Health Preserving trees is not
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can have blocky aggregates. They ha
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Site Characteristics—Site charact
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Identify trees in need of care In t
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363-2134-008 / March 31, 2012 / Pag
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Use accurate information. The plan
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The transplanting process requires
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Protecting Trees During Constructio
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geotextile. The plastic core is mad
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Retain a qualified arborist to perf
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Repairing Construction Injury The m
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Tree Techniques Tree injury Tree li
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Improve the aeration and drainage o
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1995. Tree-Pruning Guidelines. (Gui
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APPENDIX J - Publication: “Unders
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ions such as calcium, magnesium, an
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Soil Structure Is Destroyed by Comp
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compaction in decent, fertile soils
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A Note on Organic Materials and Ame
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Final Strategies for Dealing with C
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This publication is available from
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363-2134-008 / March 31, 2012 / Pag
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Aeration -----Mixing water with air
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Aquiclude -----A geologic formation
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Bedrock----- The more or less solid
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C-Horizon -----A layer of unconsoli
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Clay -----A fine-grained cohesive s
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Where: Q = Flow volume (cfs) V = Fl
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Cut and Cover -----A method of tren
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Diabase -----A rock of basaltic com
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E&S Plan -----Erosion and Sediment
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E&S Plan -----A site-specific plan
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Filter Fabric Fence -----A sediment
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Frost Action (Soils) -----The likel
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Grade -----1. The slope of a road o
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Holding Structure -----Any excavati
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Inlet Protection -----Type of BMP u
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Level Spreader -----An earthen or m
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Mesic -----Refers to environmental
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NOI -----Notice of Intent Nominal S
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Organic Soil -----Soil composed pre
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Percolation Test -----A measure of
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Pollutant -----Any contaminant or o
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Range -----The geographic region in
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stabilization; cutting of existing
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Section 404 ----The section of the
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Slope Protection -----A layer or fa
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Stable Channel Flow -----Channel fl
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stabilization techniques that consi
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Terrace -----An earthen embankment
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Trench Plug -----A flow obstruction
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Vernal Pool -----Wetlands that occu
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Y Yellowboy -----Iron oxide deposit
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26. Filtrexx, Standard Specificatio
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86. USEPA, National Pollutant Disch
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