BEsT MANAGEMENT PRACTICEs HANDbooK - Tahoe BMP

More documents

Recommendations

Info

1.3.3.2 NRCS BMP CALCULATION SPREADSHEETMODEL SUMMARYThe Natural Resource Conservation Service (NRCS) developed the BMPCalculation Spreadsheet to assist Conservation Districts and project designersto properly size storage facilities to detain and infiltrate stormwater runoff atthe Less Than 1 Acre scale. The BMP Calculation Spreadsheet targets design ofstorage facilities to meet TRPA regulations, which require containment of thestormwater runoff volume generated by a 20-year return period, 1-hourduration “design storm” from impervious surfaces on a parcel. The calculationof runoff volume in the BMP Calculation Spreadsheet is made by multiplyingthe intensity of the 20-yr/1-hr design storm (generally taken as 1 inch of rain in1 hour) by the area of each impervious surface defined by the user. BecauseBMPs designed in accordance with TRPA regulations store and then infiltraterunoff, implementation of facilities designed using the BMP CalculationSpreadsheet provides hydrologic source control to maintain or reduce runoffvolumes.BMP Calculation Spreadsheet output will confirm for a user if the design of astorage facility will satisfy TRPA regulations for a specified impervious area.APPLICATIONBMP CALCULATIONSPREADSHEETLess Than 1 Acreand SFRPROJECT SCALE AND COMPLEXITY1 to 5 Acres andCICUGreater Than 5AcresSizing Conveyance× × ×Sizing Storage Facilities √ • ×Estimating Pollutant Loads× × ×APPLICATIONSThe BMP Calculation Spreadsheet is designed for Sizing Storage Facilities. Itcannot be used to Size Conveyances and will not provide Pollutant LoadEstimates.The BMP Calculation Spreadsheet is the recommended model for SizingStorage Facilities at the Less Than 1 Acre scale (the model was specificallydesigned for this application). The model may also be used to Size StorageFacilities at the 1 to 5 Acre scale as site conditions allow.The method can be used to size storage facilities to be filled with drain rock(e.g., drip line infiltration trenches) or open basins. It also includes an optionfor water spreading over a vegetated area.TRPA BMP HandbookCHAPTER 1: Urban Hydrology2012 Page 1-15
INPUT DATA NEEDSThe BMP Calculation Spreadsheet requests, but does not necessarily require,input of an Assessor’s Parcel Number (APN) for the parcel of interest. If anAPN is provided, the model will query the NRCS Soil Survey Data to estimatesaturated hydraulic conductivity (Ksat) of the soils on the subject parcel.Additionally, the model will flag any potential design constraints for storagefacilities on the subject parcel by relating the entered APN to the NRCS SoilSurvey Data (e.g., potential constraints associated with high groundwater,shallow restrictive layers in the soil, etc.). However, the Soil Survey wasdesigned for planning purposes and it is recommended that on-site data shouldbe collected to verify the soils information.The BMP Calculation Spreadsheet requires the following data inputs:• Dimensions of each impervious surface on the parcel (length and width).Where impervious surfaces are defined based on drainage (e.g. a roof withtwo eaves that drain to opposite sides of the house would typically bedefined as two impervious surfaces in the BMP Calculation Spreadsheet).• Dimensions of storage facilities serving each impervious surface (length,width, and depth).• Void space of any material used within each storage facility (e.g., void spaceof drain rock placed in an infiltration trench).• Measured saturated hydraulic conductivity (Ksat) on the subject parcel. Thisdata input is optional but preferred. Entry of this parameter will overrideany Ksat value estimated from the NRCS Soil Survey Data if an APN isentered for the subject parcel.TYPICAL LEVEL OF EFFORTRelative to other models described in these Summary Sheets, the BMPCalculation Spreadsheet is very easy to apply. Users should possess a basicunderstanding of hydrology, water quality design, and site specific conditionsof the subject parcel to successfully apply the model. A user of the BMPCalculation Spreadsheet may need some basic training, and at most, a fewhours of time to review supporting documentation to become familiar withapplication of the model.AVAILABILITY AND SUPPORTING DOCUMENTATIONThe most recent version of the BMP Calculation Spreadsheet and supportingmaterials can be downloaded at: http://www. tahoebmp.org/Supporting materials include 1) a brief set of instructions that steps a userthrough application of the BMP Calculation Spreadsheet, and 2) generalinformation on functions included in the current version of the model.Workshops are periodically provided that discuss the use of the BMPCalculation Spreadsheet. Information on upcoming workshops is typicallyposted at: http://www.tahoebmp.org/.CHAPTER 1: Urban HydrologyTRPA BMP HandbookPage 1-16 2012
Page 5 and 6: PREFACEThe Tahoe Regional Planning
Page 7 and 8: TABLE OF CONTENTSPREFACE...........
Page 9: 3.5.5 Stormwater Treatment ........
Page 12 and 13: 6.3 Projects 1 to 5 Acres and all C
Page 14 and 15: 8.10.5 Maintenance ................
Page 16 and 17: Table 8-4: Federal, State and Regio
Page 18 and 19: Figure 4.3-i: Vegetated Swale .....
Page 20 and 21: INTRODUCTIONPURPOSE AND USERS OF TH
Page 22 and 23: Lake Tahoe’s world renowned blue
Page 24 and 25: Urbanization in the Lake Tahoe wate
Page 26 and 27: 50 percent of the light scattering
Page 28 and 29: Figure I-c: Impervious Cover versus
Page 30 and 31: Disconnected impervious areasdrain
Page 32 and 33: POLLUTANT EFFECT URBAN SOURCES ASSO
Page 34 and 35: BEST MANAGEMENT PRACTICESHistorical
Page 36 and 37: Table I-2: Differences in BMP Retro
Page 38 and 39: CHAPTER 1: URBAN HYDROLOGY1.1 PURPO
Page 40 and 41: Figure 1-a: Runoff ProcessesTRPA BM
Page 42 and 43: Although many urbanized areas face
Page 44 and 45: watersheds to make the necessary es
Page 46 and 47: Pollutant load estimates are typica
Page 48 and 49: differ from the following recommend
Page 50 and 51: Figure 1-b: Hydrologic Processes an
Page 54 and 55: 1.3.3.3 RATIONAL METHODMODEL SUMMAR
Page 56 and 57: 1.3.3.4 LOAD REDUCTION PLANNING TOO
Page 58 and 59: in HMS may be event-based or contin
Page 60 and 61: 1.3.3.6 POLLUTANT LOAD REDUCTION MO
Page 62 and 63: AVAILABILITY AND SUPPORTING DOCUMEN
Page 64 and 65: TYPICAL LEVEL OF EFFORTHSPF and LSP
Page 66 and 67: few days to a week of time to revie
Page 68 and 69: USACE studies recommended use of th
Page 70 and 71: during the initial site visit, or c
Page 72 and 73: Figure 2-a: Soil Horizons• Depth
Page 74 and 75: Evidence of compacted and disturbed
Page 76 and 77: UNMAPPED ROCK OUTCROPS, STEEP SLOPE
Page 78 and 79: The primary pollutants of concern o
Page 80 and 81: On the map use an arrow to delineat
Page 82 and 83: 2.2.3 ADDITIONAL DATA GATHERINGAfte
Page 84 and 85: and allowable uses. Baseline Land C
Page 86: topographic survey will be required
Page 89: Table 2-3: Basis of Capability Clas
Page 92 and 93: Keep your property lean, clean,and
Page 94 and 95: treatment. This will reduce the mai
Page 96 and 97: ponds, wetlands, lakes, manmade cha
Page 98 and 99: 2.3.3.2 SOILS HYDROLOGIC REPORTThe
Page 100 and 101: CHAPTER 3: PERMANENT BMP PLANNINGAN
Page 102 and 103:
STORMWATER TREATMENTRepresents BMPs
Page 104 and 105:
Table 3-1: Waste Management and Mat
Page 106 and 107:
D. STABILIZE STEEP DISTURBED SLOPES
Page 108 and 109:
This infiltration trench collects s
Page 110 and 111:
3.5 PROJECTS 1 TO 5 ACRES AND ALL C
Page 112 and 113:
This Page Blank.TRPA BMP HandbookCH
Page 114 and 115:
unnecessary turf areas and replace
Page 116 and 117:
Table 3-5: Waste Management and Mat
Page 118 and 119:
3.5.2.3 SOIL STABILIZATIONA. RESTOR
Page 120 and 121:
Left: Dripline erosion below a deck
Page 122 and 123:
Pervious concrete parking pad locat
Page 124 and 125:
3.5.5 STORMWATER TREATMENT3.5.5.1 M
Page 126 and 127:
3.6.1.1 JURISDICTIONThese projects
Page 128 and 129:
to perform required inspection and
Page 130 and 131:
3.8.2.4 SHARED ACCESS AND EASEMENTS
Page 132 and 133:
3.8.2.8 STREAM ENVIRONMENT ZONES (S
Page 134 and 135:
Sediment versus erosion:Suspended s
Page 136 and 137:
CONTENTSCHAPTER 4: BMP TOOLKIT ....
Page 138 and 139:
CHAPTER 4: BMP TOOLKIT4.1 HYDROLOGI
Page 140 and 141:
4.1.1.1 PERVIOUS PAVEMENTAlternativ
Page 142 and 143:
• Tree canopy overhead can decrea
Page 144 and 145:
ate determined at the time of insta
Page 146 and 147:
Figure 4.1-a: Pervious ConcreteTRPA
Page 148 and 149:
4.1.1.2 INFILTRATION BASINAlternati
Page 150 and 151:
groundwater, depths to restrictive
Page 152 and 153:
Very few performance monitoring stu
Page 154 and 155:
INSPECTION AND MAINTENANCE ACTIVITI
Page 156 and 157:
4.1.1.3 INFILTRATION TRENCHAlternat
Page 158 and 159:
• Consult the NRCS Tahoe Basin So
Page 160 and 161:
• Alternative Method: Excavate th
Page 162 and 163:
Figure 4.1-c: Infiltration TrenchTR
Page 164 and 165:
Figure 4.1-e: Roof Dripline Planter
Page 166 and 167:
4.1.1.4 SUBSURFACE INFILTRATION SYS
Page 168:
percent void space compared to 40 p
Page 171 and 172:
• Ensure the surrounding surface
Page 174 and 175:
4.1.1.5 RAIN BARREL AND CISTERNAlte
Page 176 and 177:
• Position the rain barrel or cis
Page 178 and 179:
4.1.1.6 RAIN GARDENAlternative Name
Page 180 and 181:
• To manage high flows, design a
Page 182 and 183:
4.1.1.7 FILTER STRIPAlternative Nam
Page 184 and 185:
• The top of the vegetated filter
Page 186 and 187:
Page 188 and 189:
Figure 4.1-i: Vegetated Filter Stri
Page 190 and 191:
LIST OF FIGURESFigure 4.2-a: Slope
Page 192 and 193:
Chapter 4: BMP ToolkitTRPA BMP Hand
Page 194 and 195:
• Obtain and use a road abrasive
Page 196 and 197:
Page 198 and 199:
• Mechanical broom sweepers may a
Page 200 and 201:
EFFECTIVENESS CONSIDERATIONSA signi
Page 202 and 203:
for dry basins or infiltration basi
Page 204 and 205:
• For unpaved snow storage areas
Page 206 and 207:
Figure 4.2-a: Slope Stabilization A
Page 208 and 209:
Disadvantages• Not always success
Page 210 and 211:
• Bind together long live branch
Page 212 and 213:
Brush Layering and MattingBrush lay
Page 214 and 215:
Page 216 and 217:
Advantages• Reduces the erosion p
Page 218 and 219:
Table 4.2-1: Terracing Inspection a
Page 220 and 221:
Page 222 and 223:
Disadvantages• Can be complicated
Page 224 and 225:
• Revegetate the backfilled bench
Page 226 and 227:
Figure 4.2-d: Timber Retaining Wall
Page 228 and 229:
Page 230 and 231:
Advantages• Versatile and applica
Page 232 and 233:
Table 4.2-3: Riprap Inspection and
Page 234 and 235:
Page 236 and 237:
educe the concentration of runoff,
Page 238 and 239:
Figure 4.2-g: Slope Bottom BenchFig
Page 240 and 241:
• Contour Furrows - relatively de
Page 242 and 243:
Page 244 and 245:
APPLICABILITYAll roads, driveways,
Page 246 and 247:
Stormwater runoff from a paved park
Page 248 and 249:
Figure 4.2-k: Grading for Sheet Flo
Page 250 and 251:
INORGANIC MULCH:• Areas where org
Page 252 and 253:
• Stockpile and use existing orga
Page 254 and 255:
Page 256 and 257:
The surface under the raised decksh
Page 258 and 259:
Figure 4.2-l: Rock Armor - Elevated
Page 260 and 261:
Clustered boulders used for parking
Page 262 and 263:
Page 264 and 265:
Page 266 and 267:
• Helps to protect wildlife.• H
Page 268 and 269:
EFFECTIVENESS CONSIDERATIONSA prope
Page 270 and 271:
Improper storage of hazardous mater
Page 272 and 273:
• Try to use the entire product b
Page 274 and 275:
Page 276 and 277:
facilities must be equipped with ap
Page 278 and 279:
Page 280 and 281:
• Dispose of it properly• Be a
Page 282 and 283:
Page 284 and 285:
Disadvantages• Additional resourc
Page 286 and 287:
• All hay, cubed hay, straw, mulc
Page 288 and 289:
• Sanitary sewer regulations gene
Page 290 and 291:
APPLICABILITYAll vehicles, includin
Page 292 and 293:
• Do not perform other vehicle or
Page 294 and 295:
LIST OF FIGURESFigure 4.3-a: Curb B
Page 296 and 297:
Page 298 and 299:
APPLICABILITY• Culverts are appli
Page 300 and 301:
deterioration. The inspection crew
Page 302 and 303:
Page 304 and 305:
APPLICABILITY• Curb and gutters a
Page 306 and 307:
INSTALLATION CONSIDERATIONS• Inst
Page 308 and 309:
Figure 4.3-b: Rolled CurbChapter 4:
Page 310 and 311:
Advantages• Prevents the discharg
Page 312 and 313:
Table 4.3-2: Storm Drain Inspection
Page 314 and 315:
Advantages• Prevents scour that m
Page 316 and 317:
Figure 4.3-c: Outlet ProtectionChap
Page 318 and 319:
Page 320 and 321:
• The structure can be designed t
Page 322 and 323:
Page 324 and 325:
INSTALLATION CONSIDERATIONS• Disc
Page 326 and 327:
Page 328 and 329:
Advantages• Assists in the contro
Page 330 and 331:
Figure 4.3-e: Slotted Channel Drain
Page 332 and 333:
Advantages• May be less expensive
Page 334 and 335:
Table 4.3-5: A/C Swale Inspection a
Page 336 and 337:
Page 338 and 339:
• Prevents property damage, slope
Page 340 and 341:
Figure 4.3-g: Subsurface DrainChapt
Page 342 and 343:
abrasives applied during the winter
Page 344 and 345:
Table 4.3-7: Rock Lined and Vegetat
Page 346 and 347:
Figure 4.3-i: Vegetated SwaleChapte
Page 348 and 349:
Check dams installed in water sprea
Page 350 and 351:
• Design check dams perpendicular
Page 352 and 353:
CONTENTS4.4 Stormwater Treatment ..
Page 354 and 355:
4.4 STORMWATER TREATMENTThe primary
Page 356 and 357:
4.4.1.1 WET BASINAlternative Names:
Page 358 and 359:
• Surcharge storage above the wet
Page 360 and 361:
Table 4.4-1: Wet Basin Inspection a
Page 362 and 363:
Figure 4.4-a: Wet Basin (Concept Dr
Page 364 and 365:
4.4.1.2 BIOSWALEAlternative Names:
Page 366 and 367:
• Consider incorporating trees or
Page 368 and 369:
Figure 4.4-b: Bioswale (Linear Basi
Page 370 and 371:
4.4.1.3 DRY BASINAlternative Names:
Page 372 and 373:
• Drainage design standards for t
Page 374 and 375:
Page 376 and 377:
Figure 4.4-c: Detention BasinTRPA B
Page 378 and 379:
4.4.2 FLOW THROUGH TREATMENTFlow-th
Page 380 and 381:
4.4.2.1 DROP INLET INSERTAlternativ
Page 382 and 383:
INSTALLATION CONSIDERATIONS• Refe
Page 384 and 385:
4.4.2.2 TRASH RACKAlternate Names:
Page 386 and 387:
4.4.2.3 BAFFLED VAULTAlternative Na
Page 388 and 389:
• Ensure that site conditions all
Page 390 and 391:
4.4.2.4 HYDRODYNAMIC SEPARATORAlter
Page 392 and 393:
• Most units are designed to be c
Page 394 and 395:
4.4.2.5 MEDIA FILTERAlternate Names
Page 396 and 397:
Cartridge Filter• Cartridge filte
Page 398 and 399:
• Vent the system as for undergro
Page 400 and 401:
4.4.2.6 SEDIMENT TRAPAlternative Na
Page 402 and 403:
INSPECTION AND MAINTENANCE• Regul
Page 404 and 405:
Figure 4.4-e: Sediment TrapTRPA BMP
Page 406 and 407:
CONTENTS4.5 Temporary BMPs for Cons
Page 408 and 409:
4.5 TEMPORARY BMPS FOR CONSTRUCTION
Page 410 and 411:
concrete washouts and stockpiles sh
Page 412 and 413:
4.5.1.1 CONSTRUCTION PLANNING AND S
Page 414 and 415:
• Measures to minimize the potent
Page 416 and 417:
4.5.1.2 CONSTRUCTION BOUNDARY FENCI
Page 418 and 419:
Figure 4.5-a: Construction Boundary
Page 420 and 421:
4.5.1.3 DEWATERINGDESCRIPTIONDewate
Page 422 and 423:
Figure 4.5-b: DewateringTRPA BMP Ha
Page 424 and 425:
• Use this settled water to fill
Page 426 and 427:
4.5.1.4 CLEAN WATER DIVERSIONAltern
Page 428 and 429:
• Avoid disturbing aquatic specie
Page 430 and 431:
• Pipe slope drain: A rigid pipe,
Page 432 and 433:
Stream Isolation Techniques:• Tur
Page 434 and 435:
Figure 4.5-f: Water DiversionTRPA B
Page 436 and 437:
4.5.1.5 VEGETATION PROTECTIONAltern
Page 438 and 439:
• Growing Space: Provide spacing
Page 440 and 441:
Figure 4.5-g: Vegetation Protection
Page 442 and 443:
4.5.1.6 TEMPORARY SANITATION FACILI
Page 444 and 445:
4.5.1.7 DUST CONTROLAlternate Names
Page 446 and 447:
• Blanket with geotextiles or veg
Page 448 and 449:
4.5.1.8 VEHICLE INGRESS EGRESS MANA
Page 450 and 451:
• If possible, re-use swept or va
Page 452 and 453:
4.5.1.9 WINTERIZATIONDESCRIPTIONBet
Page 454 and 455:
INSPECTION AND MAINTENANCEEnsure th
Page 456 and 457:
4.5.1.10 CONSTRUCTION STAGINGAltern
Page 458 and 459:
4.5.1.11 MATERIAL HANDLING STORAGE
Page 460 and 461:
• Ensure that current Material Sa
Page 462 and 463:
4.5.1.12 TOPSOIL SALVAGEAlternative
Page 464 and 465:
• If topsoil will not be used for
Page 466 and 467:
4.5.1.13 CONCRETE/BENTONITE MANAGEM
Page 468 and 469:
Figure 4.5-i: Concrete Washout Stat
Page 470 and 471:
4.5.1.14 STOCKPILE MANAGEMENTAltern
Page 472 and 473:
Figure 4.5-j: Stockpile ManagementT
Page 474 and 475:
4.5.2 EROSION AND SEDIMENT CONTROLR
Page 476 and 477:
4.5.2.1 SWEEPINGDESCRIPTIONDuring c
Page 478 and 479:
4.5.2.2 DRAIN INLET PROTECTIONAlter
Page 480 and 481:
inches. Take care to ensure that no
Page 482 and 483:
Figure 4.5-k: Drain Inlet Protectio
Page 484 and 485:
4.5.2.3 FIBER ROLLAlternative Names
Page 486 and 487:
• Adjust spacing of fiber rolls a
Page 488 and 489:
Figure 4.5-l: Fiber RollsTRPA BMP H
Page 490 and 491:
4.5.2.4 SILT FENCEAlternative Names
Page 492 and 493:
• Turn the fabric uphill at the e
Page 494 and 495:
Figure 4.5-m: Silt FenceTRPA BMP Ha
Page 496 and 497:
4.5.2.5 EROSION CONTROL BLANKET SYS
Page 498 and 499:
structures mark the boundaries of t
Page 500 and 501:
Figure 4.5-p: Anchoring Geotextiles
Page 502 and 503:
4.5.2.6 HYDROMULCH, TACKIFIER, AND
Page 504 and 505:
INSPECTION AND MAINTENANCE• Hydro
Page 506 and 507:
5.2 SOILSoil is a complex living sy
Page 508 and 509:
Tilling green wood chips intothe so
Page 510 and 511:
areas such as SEZs and in shorezone
Page 512 and 513:
Large boulders provide permanent ve
Page 514 and 515:
To address this TRPA’s Regional P
Page 516 and 517:
to apply ½ inch of water. Water yo
Page 518 and 519:
Pesticides can be degraded by sunli
Page 520 and 521:
5.3.2.5 FIRE DEFENSIBLE SPACEFire d
Page 522 and 523:
etween them. For example, shrubs wi
Page 524 and 525:
5.4 PROJECT SCALE REQUIREMENTSSoil
Page 526 and 527:
5.4.1.5 PROJECT INSTALLATIONA. CONT
Page 528 and 529:
percent vegetative cover, soil surf
Page 531 and 532:
TRPA Revegetation Plan TemplateSoil
Page 533 and 534:
(c) GRADING AND SLOPE SHAPINGDescri
Page 535 and 536:
TRPA Revegetation Plan ExampleSoil
Page 537 and 538:
• All machinery must be clean bef
Page 539 and 540:
Common NameScientific NameScotchbro
Page 541 and 542:
during dry weather. All debris, roo
Page 543 and 544:
substantially different that the pe
Page 545:
TRPA BMP HandbookCHAPTER 5: Soil an
Page 548 and 549:
Fertilizer Management PlanProject N
Page 550 and 551:
IV. MONITORINGSurface and groundwat
Page 552 and 553:
I. PROJECT AND SITE DESCRIPTIONGold
Page 555:
Table 5-1: Description of Revegetat
Page 558 and 559:
SITE TYPE RECOMMENDED SPECIES LISTS
Page 560 and 561:
SITE TYPE RECOMMENDED SPECIES LISTW
Page 562 and 563:
CHAPTER 5: Soil and Vegetation Mana
Page 564 and 565:
TRPA APPROVED PLANT SPECIES ATTRIBU
Page 566 and 567:
TRPA APPROVED PLANT SPECIES ATTRIBU
Page 568 and 569:
CHAPTER 5: Soil and Vegetation Mana
Page 570 and 571:
• Section 6.2 describes methods f
Page 572 and 573:
equirements. At a minimum, training
Page 574 and 575:
Vactor equipment removes sediment a
Page 576 and 577:
Industrial Properties, Marinas, and
Page 578 and 579:
• Rinse the rock with hose water
Page 580 and 581:
EXAMPLE INSPECTION AND MAINTENANCE
Page 582 and 583:
MONITORING PLAN TEMPLATE1. TITLE PA
Page 584 and 585:
MONITORING, INSPECTION, ANDMAINTENA
Page 586 and 587:
Sample Site123 Main StreetSouth Lak
Page 588 and 589:
3. MONITORINGIn 2011, South Lake Ta
Page 590 and 591:
ATTACHMENT BWATER QUALITY DATA
Page 592 and 593:
ATTACHMENT DINSPECTION AND MAINTENC
Page 594 and 595:
• Discharge of stormwater from in
Page 596 and 597:
PAVING SINGLE FAMILY RESIDENTIAL PR
Page 598 and 599:
TRPA Shorezone permit (www.trpa.org
Page 600 and 601:
CHAPTER 8: SHOREZONE PROTECTIVESTRU
Page 602 and 603:
technical guidance on structural an
Page 604 and 605:
Pope has developed a shorezone miti
Page 606 and 607:
ADVANTAGES• Protect parcel develo
Page 608 and 609:
Table 8-3: Categorical Classificati
Page 610 and 611:
generate observable changes in the
Page 612 and 613:
Table 8-5: The General Geomorphic C
Page 614 and 615:
8.1.8.2 TOLERANCE DISTRICT AND BACK
Page 616 and 617:
Figure 8-e: Option 2—Backshore De
Page 618 and 619:
Scenic Resources and project compli
Page 620 and 621:
8.2 BULKHEADS AND LAKE WALLS8.2.1 O
Page 622 and 623:
oth the beach immediately fronting
Page 624 and 625:
Like all BMPs, bulkheads and lake w
Page 626 and 627:
For a bulkhead located such that th
Page 628 and 629:
Figure 8-i: Typical Lake Wall (Grav
Page 630 and 631:
Table 8-9: Advantages and Disadvant
Page 632 and 633:
maintains its position under wave s
Page 634 and 635:
8.3.4 INSTALLATIONAs with bulkheads
Page 636 and 637:
Table 8-11: Advantages and Disadvan
Page 638 and 639:
V t ≥ 5R c2(Equation 4.1)Where:Vt
Page 640 and 641:
8.5 BEACH NOURISHMENT AND REPLENISH
Page 642 and 643:
of not being able to protect the ba
Page 644 and 645:
• The material must be washed to
Page 646 and 647:
nourishment will be determined by m
Page 648 and 649:
Page 650 and 651:
8.7 BREAKWATERS8.7.1 OVERVIEWBreakw
Page 652 and 653:
The procedure for determining armor
Page 654 and 655:
8.8 SHOREZONE VEGETATION8.8.1 OVERV
Page 656 and 657:
vegetation. Protecting a tree from
Page 658 and 659:
Overall, dredging can be either a p
Page 660 and 661:
The Pneuma pump is a piece of dredg
Page 662 and 663:
nature of the project and the poten
Page 664 and 665:
8.10 TURBIDITY CURTAINS8.10.1 OVERV
Page 666 and 667:
weights or connected firmly to sand
Page 668 and 669:
Figure 8-o: Turbidity Curtain Desig
Page 670 and 671:
Aquatic invasive species (AIS) also
Page 672 and 673:
tanks into a sewage retention and/o
Page 674 and 675:
• A common problem with recreatio
Page 676 and 677:
8.12 BOAT RAMP CONSTRUCTION AND VEH
Page 678 and 679:
Page 680 and 681:
amp at the change of grade. A V-gro
Page 682 and 683:
Figure 8-p: Boat Ramp DesignTRPA BM
Page 684 and 685:
Table 8-22: Overview of Geotechnica
Page 686 and 687:
8.14 SHOREZONE PROTECTIVE STRUCTURE
Page 688 and 689:
8.14.2 ADDITIONAL CONSIDERATIONS FO
Page 690 and 691:
some designated boundary or sphere
Page 692 and 693:
spawning grounds and juvenile nurse
Page 694 and 695:
Marine Science, School of Geoscienc
Page 696 and 697:
Osborne, R.H., et. Al. (1985). Sedi
Page 698 and 699:
8.16 APPENDICES8.16.1 DESIGN CALCUL
Page 700 and 701:
Figure 8-r defines the primary wave
Page 702 and 703:
8.16.1.2 WAVE RUN-UP FORMULA FOR BA
Page 704 and 705:
• Use Equation 16.10 to calculate
Page 706 and 707:
Figure 8-u: Design Wave CasesTRPA B
Page 708 and 709:
Figure 8-v: Wave Setup and Run-Up f
Page 710 and 711:
Alternative methods of wave calcula
Page 712 and 713:
GLOSSARYAccretionMay be either a na
Page 714 and 715:
eaches have no berm, others have se
Page 716 and 717:
DensityMass (in kg) per unit of vol
Page 718 and 719:
Fire Defensible SpaceRefers to the
Page 720 and 721:
Common terms related to land covera
Page 722 and 723:
PermeabilityThe property of a bulk
Page 724 and 725:
ScourRemoval of underwater material
Page 726 and 727:
SlopeThe degree of inclination to t
Page 728 and 729:
Technical Advisory Committee (TAC)C
Page 730 and 731:
ACRONYMSACES - Automated Coastal En
Page 732 and 733:
NPS - Nonpoint SourceNRCS - Natural
show all

BEsT MANAGEMENT PRACTICEs HANDbooK - Tahoe BMP

Create successful ePaper yourself

Delete template?

Save as template?