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BAK SA 110 Annual Report 2014.Docx 18 November 2015 PUGET SOUND ENERGY Baker River Hydroelectric Project
SETTLEMENT AGREEMENT ARTICLE 110
SHORELINE EROSION 2014 ANNUAL REPORT REPORTING PERIOD JANUARY 1, 2014 – DECEMBER 31, 2014
BAKER RIVER HYDROELECTRIC PROJECT FERC No. 2150
November 2015
Shoreline Erosion 2014 Annual Report CONTENTS
BAK SA 110 Annual Report 2014.Docx 18 November 2015 PUGET SOUND ENERGY Baker River Hydroelectric Project Page ii
CONTENTS 1.0 Executive Summary .................................................................................................................................................................. 1
2.0 Introduction ............................................................................................................................................................................... 1 3.0 Activity Report .......................................................................................................................................................................... 1
3.1 Principal Management Activities ...................................................................................................................................... 1 4.0 Accounting ................................................................................................................................................................................ 3
4.1 Funding ............................................................................................................................................................................ 3
5.0 References ................................................................................................................................................................................. 3
APPENDIX A: SWIFT CREEK LWD RESTORATION EROSION HAZARD REDUCTION 100% DESIGN DRAWINGS.............. 4
List of Tables Table 1. Funding and expenditures prescribed by SA 110 for January 1, 2014 to December 31, 2014. ......................................... 3
List of Figures Figure 1. The Swift Creek Campground shoreline large woody debris restoration erosion hazard reduction project. .................... 2
BAK SA 110 Annual Report 2014.Docx 18 November 2015 PUGET SOUND ENERGY Baker River Hydroelectric Project Page 1
1.0 Executive Summary This annual report describes recent activity undertaken by Puget Sound Energy (PSE) to implement settlement agreement article 110 (SA 110), “Shoreline Erosion,” and license article 409 (LA 409), “Shoreline Erosion Control Plan,” of the Baker River Hydroelectric Project license. The report covers the reporting period from January 1, 2014 through December 31, 2014, as outlined by the reporting schedule in SA 102. In 2014, principal efforts under SA 110 included continued the finalized design and construction of the shoreline large woody debris restoration erosion hazard reduction project to protect the USDA Forest Service Swift Creek Campground along Swift Creek and the shore of Baker Lake.
2.0 Introduction This annual report has been prepared for the Baker River Hydroelectric Project pursuant to the Order on Offer of Settlement, Issuing New License and Dismissing Amendment Application as Moot (the license) issued by the Federal Energy Regulatory Commission (FERC) on October 17, 2008. In appendix A of the license, settlement agreement article 110, “Shoreline Erosion,” and license article 409, “Shoreline Erosion Control Plan,” set forth the requirements for the Reservoir Shoreline Erosion Control Management Plan (RSECMP), which in turn sets forth the requirements of this annual report.
This report summarizes the activities conducted under SA 110 for the 2014 reporting period from January 1, 2014 to December 31, 2014. These include management activities, monitoring, design and planning, acquisition-related activities, consultation, documents prepared, modifications to or deviations from planned activities, issues and resolution, accounting, and proposed changes to the FERC-approved plan.
This report was reviewed by the Aquatic Resources Group (ARG). The list of ARG members who reviewed this report, along with a table of reviewer comments and PSE responses, is provided in the SA 102 Aquatic Resources 2014 Annual Report.
3.0 Activity Report 3.1 Principal Management Activities
Principal activities in 2014 included the following.
Swift Creek Shoreline Erosion Control Project Design and construction of the Swift Creek shoreline erosion control project was completed in 2014 in coordination with the USDA Forest Service. The goals of the Swift Creek project were to reduce/eliminate shoreline erosion affecting the Swift Creek Campground, to reduce/eliminate sediment deposition affecting water quality and nearshore habitat adjacent to the campground, and to address one of the most severe Baker River Hydroelectric Project erosion sites according to the 2003 Reservoir Shoreline Erosion and Deposition Study (Associated Earth Sciences, 2003). The project addressed two areas of erosion: the right bank at the mouth of Swift Creek where it
Shoreline Erosion 2014 Annual Report Activity Report
BAK SA 110 Annual Report 2014.Docx 18 November 2015 PUGET SOUND ENERGY Baker River Hydroelectric Project Page 2
enters Baker Lake, and the shoreline in the vicinity of the swim beach. PSE has engaged in consultation with the USDA Forest Service throughout the design phase. Design was initiated in March 2012, and a 30-60-90 percent design process was completed in June 2014.
The project included construction of 16 flood fence structures along Swift Creek and adjacent to the Swift Creek Campground swim beach (see appendix A). Flood fence arrays consist of vertical logs embedded in the ground and protruding a certain height above the creek bed. The arrays are designed either to trap woody debris, thereby promoting sedimentation on the lee side of the trapped debris; or to increase local bed roughness and thereby promote local deposition around the structure. In both applications at the Swift Creek Campground project, the deposition of sediment is intended to protect the toe of eroding slopes by decreasing flow depth and velocity during high flow. Construction began in October 2014, and was completed in December 2014.
Figure 1. The Swift Creek Campground shoreline large woody debris restoration erosion hazard reduction project.
Flood fences (FF) 7 through 13 are visible.
FF-11
FF-7
FF-8
FF-9
FF-10
FF-12 FF-13
Shoreline Erosion 2014 Annual Report Accounting
BAK SA 110 Annual Report 2014.Docx 18 November 2015 PUGET SOUND ENERGY Baker River Hydroelectric Project Page 3
4.0 Accounting Puget Sound Energy, pursuant to settlement agreement articles 102, 201, 301, 501, and 602, is required to provide an annual summary of expenditures made during the preceding year, as well as an accounting of funding expenditures, any interest earned, disbursements made as required by any article, and adjustments for inflation. This section provides an accounting of all expenditures made during the reporting period, including pre-license expenditures such as costs incurred for early land acquisition efforts.
All disbursement adjustments and relevant calculations were determined using the guidelines provided in settlement agreement article 602.
4.1 Funding Table 1. Funding and expenditures prescribed by SA 110 for January 1, 2014 to December 31, 2014.
Shoreline Erosion Capital Credit Debit Explanation Previous Year’s Remaining Balance 193,825 2014 Required Deposit to Fund 0 2014 Deposit Escalationa 0
Labor Expenses 19,042 Labor costs associated with Swift Creek Project
Outside Services Expenses 100,864
Contractor costs for the Swift Creek Project permitting and construction
Materials & Other Expenses 2,350 Material costs for the Swift Creek Project
Required Interestb 83 0.07% Total Expenditures Against Required Funds 122,256 Total Remaining Balance 71,652
a Escalation is applied to the deposit to required fund only. b Interest is based on the 90-day Treasury bill rate and is applied to the account balance as of the last day of the reporting period.
No additional funds prescribed by SA 110 were deposited for implementation of SA 110 in 2014. The total amount available for use at the end of 2014 was $71,652.
5.0 References Associated Earth Sciences (AESI). 2003. Reservoir shoreline erosion and deposition
study A14a. Prepared for Puget Sound Energy by Associated Earth Sciences Inc., Kirkland, Washington.
BAK SA 110 Annual Report 2014.Docx 18 November 2015 PUGET SOUND ENERGY Baker River Hydroelectric Project Page 4
APPENDIX A: SWIFT CREEK LWD RESTORATION EROSION HAZARD REDUCTION 100% DESIGN DRAWINGS
SWIFT CREEK LWD RESTORATION EROSION
PROJECT MANAGER: JACOB VENARD PUGET SOUND ENERGY (PSE)
BELLEVUE, WA 98273 (425) 462-3771
100% DESIGN
SHEET INDEX
SHEET NAME
COVER SHEET, MAPS, GENERAL ACCESS, LEGEND
PROJECT LAYOUT, ACCESS, STAGING, SEQUENCING
SWIFT CREEK FLOOD FENCES, SECTIONS, DETAILS ( 1)
SWIM BEACH FLOOD FENCES; DETAILS (2) & SPECIFICATIONS
TESC & WATER MANAGEMENT PLANS
SHEET #
HAZARD REDUCTION:
LEGEND
----- SUMMER FULL POOL WSE
-·-·-·- OHWM/2 YR FLOOD WSE ACCESS ROAD ---------- 100 YR FLOOD WSE
2
3
4
5
6 ~ ELEV CONTOURS + TEMPORARY ELEVA llON BM
/
\ \
\ \
VICINITY MAP
2
NO.
/
\ \
\
\
PERMITTING INFORMATION, OUANmlES
TO SR 20, CONCRETE
2/13/14 REPLACED CABLED SlRUClURES W/ FLOOD FENCES POV 5 14 ELIMINATED ARRAYS REQUIRING WATER DIVERSION POV
DAlE REVISION DESCRIPTION BY CHK
SITE MAP
0 100 500
bd==bd=bd SCALE: 1" • 500'
0 1"
BAR MEASURES ONE INCH ON ORIGINAL DRAWINGS
mwm HIGH EROSION AREA ~'Ii:- 'Ii:- "" - 3 WOOD ~ "\iii: .......
~:o~o:&o~o:~ SEVERE EROSION AREA mm 1nw1~ UNDISTURBED EARTH
~ CUT ~vvvv~ v~vvvvv DISTURBANCE AREA
~ FILL ~ STAGING AREA
ABBREVIATIONS
SWIFT CREEK DELTA
BAKER LAKE
BM CL,~ CP cs CY
DBH DIA DIM OS, D/S E EA ELEV EXIST FF-13 FT H HORZ ID IN L LB LT LF LWD MAX MIN
BENCH MARK CENTERLINE CONTROL POINT CROSS SECTION CUBIC YARD DIA AT BREAST HEIGHT DIAMETER DIMENSION DOWNSTREAM EAST EACH ELEVATION EXISTING FLOOD FENCE No. 13 FOOT, FEET HEIGHT HORIZONTAL IDENTIFICATION INCH, INCHES LENGTH, LONG POUNDS LEFT LINEAR FOOT LARGE WOODY DEBRIS MAXIMUM MINIMUM
PUGET SOUND ENERGY /US FOREST SERVICE
DESIGNED BY: POV, RN DRAWN BY: POV CHECKED BY: JE PROJECT MGR: POV
,,.~Resource 1V Consultants, Inc. REDMOND, WA 98052 PHONE: (425) 556-1288
MISC MISCELLANEOUS MON MONUMENT N NORTH NO NUMBER NTS NOT TO SCALE OHWM ORDINARY HIGH WATER MARK RT RIGHT s SOUTH SG SPECIFIC GRAVITY SHT SHEET SPEC SPECIFICA llON SS STAINLESS STEEL STA STATION SlO STANDARD SF SQUARE FOOT SY SQUARE YARD TBM TEMPORARY BM TESC TEMPORARY EROSION
AND SEDIMENT CONTROL TYP TYPICAL US, U/S UPSTREAM VAR VARIES VERT VERTICAL w WEST, WIDE W/ WITH WSE WATER SURFACE ELEV W/O WITHOUT
SWIFT CREEK LWD RESTORATION ERO~ON HAZARD REDUCTION
COVER SHEET, MAPS, GENERAL ACCESS, LEGEND 100% DESIGN
DATE: JUNE 9, 2014
SHEET: REV:
1 2
FLOOO FENCE TYPE 1 (ROUGHNESS FUNCTION)
SEE SHEET 4
2./13/14 REPLACED CABLED STRUCTURES W/ FLOOD FENCES POV 2 5/7 /14 ELIMINATED ARRAYS REQUIRING WATER DIVERSION POV
NO. DATE RE\/ISION DESCRIPTION BY CHK
0 100 200
SCALE; 1" = 200'
0 1"
BAR MEASURES ONE INCH ON ORIGINAL DRAWINGS
'\
~
1. STRUCTURE LOCATIONS TO BE STAKED IN FIELO BY ENGINEER, IN CON SUL TA TION WITH USFS AND PSE REPRESENTATIVES. NOTE THAT TOPOGRAPHY HAS CHANGED SINCE SURVEY WAS COMP LE TEO, \\'HERE DEPOSITION HAS OCCURRED AT THE LOCATION OF FLOOD FENCE STRUClURES 7-12. SUCH THAT THE WORK AREA WILL BE HIGH AND DRY.
2. SURVEY ELEVATION CONTROL PROVIDED BY TBMs AT LOCATIONS INDICATED ON THIS SHEET MAY BE COVERED BY S !REAM DEPOSITION; DATUld = NA 1t088. ENGINEER WILL RELOCATE AND/OR ESTABLISH NEW SURVEY CONTROL REBAR TBMs. CONTRACTOR TO PROTECT REBAR FROM EQUIPMENT. BACKUP SURVEY ELEVATION CONTROL POINT IS NE CORNER OF RETAINING WALL AT BOAT RAMP = EL 7J9.5!1. DAILY LAKE ELEVATION MAY BE USED FOR CORR OB ORATION, SUBJECT TO CONFIRMATION BY ENGINEER. BATHYl.IETRIC ELEVATION CONTOURS ARE FROM WALKER ASSOCIATES 2001 PHOTOGRAMMETRY, WITH IN-CHANNEL ELEVATIONS ABOVE -720' ADJUSTED USING CROSS-SECTION SURVEY DATA COLLECTED BY R2 IN MAY 2.012.
3. BANK EROSION RATINGS PER GIS LAYER FROM AESI (2003) REPORT, USED TO GUIDE SITING SINGLE LOG AND FLOOD FENCE STRUCTURES.
4. CONTRACTOR TO CLEAR ANO PREPARE SURFACE OF ACCESS TRAIL TO CHANNEL FROM JUNCTION WITH CAMPGROUND ACCESS ROAD. USE QUARRY SPALLS AS NEEDED TO PROVIDE SUITABLE SURFACE FOR ACCESS BY SKIDDER AND EXCAVATOR. AT END OF JOB, REMOVE QUARRY SPALLS, SCARIFY ACCESS ROAD SURFACE TO RESEMBLE PRE-PROJECT CONDITION, ANO PLACE BOULOERS ( 4-MAN OR LARGER PER WSOOT SPECIFICATION 9-13.7(1)) ANO LOGS ACROSS TOP OF ROAD TO PREVENT ATV OR OTHER MOTORIZED VEHICLE ACCESS TO CHANNEL. BOULOERS SHALL BE APPROVED BY USFS AND PLACED WITH APPROXIMATELY 1/3 BURIED.
5. CONTRACTOR TO CLOSE AND LOCK MAIN CAMPGROUND GA TE AT ALL Tlf.IES. PLACE SIGN AT ENTRANCE WARNING PUBLIC NOT TO ENTER CAMPGROUND. AT END OF EACH DAY, PLACE ORANGE CONSTRUCTION NETTING ACROSS TOP OF ACCESS ROAD AND AROUND SWIM BEACH TO PRE\.£NT INADVERTENT ACCESS TO CONSTRUCTION SITES BY UNAUTHORIZED PERSONS.
6. GENERAL SEQUENCING OF CONSTRUCTION; 6.1. START DATE WILL BE CONTROLLED BY PSE LAKE LEVEL MANAGEMENT OPERATIONS
AND USFS CAMPGROUND MANAGEMENT. CONTRACTOR TO VERIFY WITH PSE & USFS; NO CONSTRUCTION VEHICLES WILL BE ALLOWED ONSITE BEFORE REGULAR CAl.IPGROUNO CLOSURE, SCHEDULED TD OCCUR AFTER LABOR DAY WEEKEND.
6.2.. REHABILITATE EXIST ACCESS ROAD TO STREAM AS NEEDED; PLACE PROMINENT CONSTRUCTION WARNING SIGNS PROHIBITING PUBLIC ACCESS AT JUNCTION WITH CAMPGROUND ACCESS ROAD, ON BOTH SIDES OF ACCESS ROAD.
6.3. HAUL MATERIALS TO SITE STAGING AREAS. 6.4. BEGIN CONSTRUCTION OF SIXTEEN FLOOD FENCES FF-7 TO FF-22 WHEN LAKE
LEVEL DROPS BELOW 720 FT NAVDBS. PROCEED FROM UPSTREAM TO DOWNSTREAM. 6.5. RESTORE WORK AREA ON S\lllFT CREEK GRAVEL BAR. 6.6. CLOSE OFF ACCESS ROAD AT HEAD TO MOTORIZED VEHICLES. 6.7. BEGIN CONSTRUCTION OF THREE FLOOD FENCES FF-1 TO FF-3 WHEN LAKE LEVEL
DROPS BELOW 710 FT NAVOBB; RESTORE DISTURBED ACCESS ROUTE FRO>.A CAMPGROUND WHEN DONE.
7. QUANTITIES LISTED IN TABLE 2., SHT 6.
..l!liW\""" - '""":::::)~SHEET 4
fF-J r ~ I
'*~< I ~~~, I
_______ _J l:·:·:·:·:·:I DEBRIS CATCHING FLOOD FENCE LOCATIONS
l!!!!!!I ROUGHNESS FLOOD FENCE LOCATIONS
PUGET SOUND ENERGY /US FOREST SERVICE SWIFT CREEK LWD RESTORATION EROSION HAZARD REDUCTION
DESIGNED BY: DRAWN BY: CHECKED BY: PROJECT MGR:
POV, RN POV JE POV
,,~Resource I~ Consultants, Inc. REDl.40ND, WA 98D52 PHONE: ( 425) 556-1286
PROJECT LAYOUT, ACCESS, STAGING, SEQUENCING 100% DESIGN
DATE: JUNE 9, 2014
SHEET: REV:
2 2
ROUGHNESS FLOOD FENCE FF-12
730
~ 728
~ 726 Cl
~ 724 z I- 722
.!=- 720
i5 718 F < 716 > ~ 714 w
712
710 0
DEBRIS CATCHER FLOOD FENCE FF-15 740
738
736 f----'"Ta~
~ 734 IXl IXl 732 ~
+
<( 7 30 f-------PJJ z I- 728 u... ~ 726 z ~ 724
~ 722 w ci 720
718
716
714
712
710 0
+
+
+
+
+
50
I-
+
..
100
+
.,.
+
150
50
SECTION FLOOD FENCES
100
LOOKING U
DEBRIS CATCHER FLOOD FENCE FF-16
+
+
200 250
SECTION FLOOD FENCES
I 300
SUMMER FULL POOL 740
-;;:;- 738
IXl 736 0 > 734 <( z I- 732
.!=- 730 z
728 0 + F < 726 > w
724 _J w
722
+ + +
t I-+
7200 50 100 150 200 250 300
SECTION 30' 0 30'
FLOOD FENCES 1"=60'
1 2/13/14 REPLACED CABLED STRUClURES W/ FLOOD FENCES POV
2 5/7 /14 ELIMINATED ARRAYS REQUIRING WATER DIVERSION PDV
NO. DATE REVISION DESCRIPTION BY CHK
DEBRIS CATCHING FLOOD FENCE FF-13
2 YR FLOOD
-~
f LOW FLOW CHANNEL
I-
200 250 300 350
JO' 0 JO' 60' liiiiiiiii~§~~~~iiiiiiiiiiiiiiiiiiiiiiiiiiiiiii VERTICAL SCALE EXAGGERATED X5
+
+
+
350 JO'
1·-so'
SUMMER FULL POOL
+
I-
CUT & FILL PROFILE; SIDE SLOPE NEAR VERTICAL AS POSSIBLE (~0.2H: 1V)
400 JO'
+
.,.
.,.
+
+
450 60'
c
..
500
722
+ + 720
+ 718
+ + 716
+ 714
712
710 400 450 500
100-YR FLOOD
+
+
+
+
+
550 600
-;;:;-IXl Cl > <( z I-.!=-z 0 F <(
> w _J w
1. CONTRACTOR SHALL COLLECT RESERVOIR DEBRIS FROM CONSTRUCTION AREA AND RACK MATERIAL WITHIN CONSTRUCTED FLOOD FENCES FF-13 TIHROUGH FF-19. PSE AND USFS SHALL PROVIDE MATERIAL AS WELL. AT LEAST 12 PIECES BETWEEN 10-25 FT LONG SHALL BE PLACED BETWEEN BOLES IN A WOVEN PATTERN WITIHIN EACH ARRAY.
2. PLACE LOGS TO REST ON DEBRIS REFERENCED IN NOTE 1, SNUG NEXT TO FLOOD FENCE BOLES AS SHOWN IN DETAILS 1 AND 2, THIS SHEET. ALL FLOOD FENCE BOLES SHALL BE INSTALLED LEANING IN UPSTREAM DIRECTION PER DETAIL 2 THIS SHEET. TIE LOGS TO BOLES W/ 1" MANILA ROPE W/ RATED NOMINAL STRENGTH 8100 LB -- ESTIMATED LENGTIH REQUIRED PER BOLE = 25 FT. BUT CONTRACTOR SHOULD VERIFY FOR VARIABILITY IN LOG DIMENSIONS AND CONSTRUCTION. WRAP TWO TIMES AROUND LOG IN OPPOSING DIRECTIONS AND TIE EACH END TWO TIMES AROUND VERTICAL BOLE. DO NOT OVER-TIGHTEN -- ROPE WILL SHRINK ~10%-15% IN LENGTH WHEN WET. TIE ENDS TOGETIHER WITIH CARRICK BEND KNOT (OR ENGINEER-APPROVED AL TERNA Tl VE). TAPE OR TIE LOOSE ENDS TO PREVENT FRAYING.
3. BEFORE PLACING DEBRIS, SCALP GRAVEL FROM AREA ON BAR MIN 20 FT DOWNSTREAM OF ARRAY AND DUMP TO FORM MIN 2 FT HIGH PILE AROUND EACH LASHED BOLE.
DIRECTION OF FLOW
1" MANILA HEMP ROPE; SEE NOTE 2 FOR INSTALLATION DETAILS
~~-FLOOD FENCE BOLE, LEANING UPSTREAM TO PROMOTE ANCHORING
GRAVEL; SEE NOTE 3
FLOOD FENCE DETAIL LASHED DEBRIS LOGS, SECTION; NTS
0 -- VERTICAL SCALE EXAGGERATED X5
350 400
50' VERTICAL SCALE EXAGGERATED X5
PUGET SOUND
DESIGNED BY: PDV 0 1" DRAWN BY: POV
CHECKED BY: JE
BAR MEASURES ONE INCH PROJECT MGR: POV
ON ORIGINAL DRAWINGS
LOG W/O ROOTWAD; MAX 1' DBH---r~~~~-11~
TIE LOG TO FLOOD FENCE BOLES PER NOTE 2 ANO DETAIL 1; VERTICAL BOLES SHALL BE INSTALLED TO LEAN IN UPSTREAM DIRECTION
FLOOD FENCE DETAIL LASHED DEBRIS LOGS, PLAN; NTS
TO STREAM -----1·--FLOOL----® FENCE BOLE
ENERGY/US FOREST SER~CE SWIFT CREEK LWD RESTORATION EROSION HAZARD REDUCTION
r~Resource Consultants, Inc. SWIFT CREEK FLOOD FENCES DATE: JUNE 9, 2014
SECTIONS, DETAILS (1) SHEET: REV: REDMOND, WA 98052 PHONE: (425) 556-1288 100% DESIGN 3 2
TABLE 1. QUANTITI ES & SPECIFICATI ONS -- FLOOD FENCE TIMBER & CONSTRUCTI ON f TOTAL HEIGHT MIN IM UM NUMBER
NUM BER OF DIAM ETER (IN) LENGTH A BOVE DEPTH PER SPACING (FT) 'I
FLOOD FENCE ID. SPECIES BOLES/ FF MINIMUM MAXIMUM EA (FT) BED (FT) INSTALLED (FT) ROW ROW (Sy) COL (Sx) FF-3
FF-1/2/3 DOUGLAS FIR 20 10 12 13 2 11 7:6:7 4 8
FF-7/8/9/10/11 / 12 DOUG LAS FIR 20 10 12 14 2 12 7:6:7 4 8 FF-13/1 4, FF-1 6/17 DOUG LAS FIR 17 12
l 15 15 3 12 6 5:6 8
1
16 FF-15 DOUG LAS FIR 17 12 15 17 5 12 6:5:6 8 16
FF-18/ 19 DOUG LAS FIR 17 12 15 15 3 12 6:5:6 8 16 FF-20/21 DOUG LAS FIR 20 10 12 14 3 11 7:6:7 4 4
FF-22 DOUG LAS FIR 20 10 12 15 3 12 7:6:7 4 4
SUMMER FULL POOL WSE
OUTSIDE ROW --
SWIM BEACH BUOY LINE (APPROX.)
MIDDLE ROW --
PLAN © SWIM BEACH FLOOD FENCES
SUMMER FULL POOL WSE
100 YR FLOOD SWIM BEACH BUOY LINE
00 750 ·i~~-~-~~-i·~F_L_OO~D_F~EN_C_E~F_F_-_2~ 750 00
~ mt ~ ~ 740f----+---+-___,f----+---+-___,- +--+--f----+--~~___,f----+---+-___,---+- 740~
FLOOD FENCE BOLE; SEE TABLE 1
FOR SPECIFICATIONS
TEMPORARY LOG LATTICE FOR BRACING
OUTSIDE ROW --
COLUMN Sx
FLOOD FENCE DETAIL SPACING KEY PLAN FOR TABLE 1, NIS
~ 730 ~ +---+--+--+-~-+--+--+----+---+-~--+~-+---+----<>---+---+----<--+---+--+--+-----1730~ z 720 720 z 0 0
~ 710 710 ~ > >
DURING INSTALLATION~
d 700 - 00 d 0 50 100 150 200 250 300
SECTION
1. STRUCTURE LOCATIONS AND PLAN ORIENTATION TO BE STAKED IN FIELD BY ENGINEER, IN CONSULTATION WITH USFS AND PSE REPRESENTATIVES. FLOOD FENCES 4, 5, 6 WILL NOT BE CONSTRUCTED, PER DIRECTION OF USFS, AND ARE NOW OMITTED FROM THIS WORK.
FLOOD FENCE FF-2 CD TOP OF GROUND WATER J
2. BATHYMETRIC ELEVATION CONTOURS ARE FROM WALKER ASSOCIATES 2001 PHOTOGRAMMETRY, GROUND ELEVATIONS DERIVED FROM USFS-PROVIDED SURVEY OF CAMPGROUND.
3. TYPICAL SECTIONS SHOWN. SEE TABLE 1 FOR SPECIFICATIONS, FOLLOWING STAGGERED ROW AND COLUMN SPACING DEPICTED IN DETAIL 3.
4. CONSTRUCT FLOOD FENCING BY TRENCHING, WITH SIDE SLOPES AT ANGLE OF REPOSE; START AT ONE END, DIG WITHIN ,.,, 1 FT OF DESIGN DEPTH, SHARPEN END OF BOLE AND PUSH IN TO TARGET DEPTH. WITH BOLE LEANING UPSTREAM PER DETAIL 2, SHEET 3. BACKFILL USING NEWILY EXCAVATED MATERIAL WORKING PROGRESSIVELY TO OTHER END OF ARRAY. MAY CONSTRUCT TEMPORARY LATIICE GRID USING LOGS TO BRACE BOLES IF NEEDED PRIOR TO BACKFILL, REMOVE BRACING LOGS IF USED BEFORE SECOND/FINAL BACKFILL, TAMP DOWN WITH BUCKET AROUND BOLES AFTER BOTH STAGES OF BACKFILL. ENGINEER TO APPROVE COMPACTION. LEAVE BED ELEVATION SAME AS PRE-CONSTRUCTION. IT SHOULD NOT BE NECESSARY HOWEVER IE REQUIRED NO PERSONNEL ARE TO ENTER TRENCH WITHOUT SUITABLE TEMPORARY TRENCH WALL SHORING MEASURES IN PLACE· IE ENTRY TO TRENCH IS REQUIRED MUST FOLLOW STANDARD OSHA ANO WAC COPES FOR TRENCH SAFETY PRACTICES
5. NO FLOOD FENCE EXCAVATION WORK SHALL BE DONE WITH EQUIPMENT IN SURFACE WATER. ALL EXCAVATION TO BE DONE IN DRY DURING LOW FLOW CONDITIONS, WITH DRY WORK AREA ESTABLISHED VIA PUSH-UP BERM PER SHEET 5. IF PUMPING IS REQUIRED, DIRECT PUMPED WATER TO TEMPORARY INFILTRATION BASIN AS SPECIFIED IN TESC PLAN (ALSO PER SHEET 5).
1 2/13/14 REPLACED CABLED STRUCTURES W FLOOD FENCES POV
2 5/7 /14 ELIMINATED ARRAYS REQUIRING WATER DIVERSION POV 20'
NO. DA TE REVISION DESCRIPTION BY CHK
0 20'
0 1"
BAR MEASURES ONE INCH ON ORIGINAL DRAWINGS
40' PUGET SOUND ENERGY/US FOREST SER~CE
DESIGNED BY: POV, JE, RN DRAWN BY: POV.BG CHECKED BY: JE PROJECT MGR: POV
,.~Resource I~ Consultants, Inc. REDMOND, WA 98052 PHONE: (425) 556-1288
FLOOD FENCE SECTION CUT & FILL W/ BRACING; NIS
SWIFT CREEK LWD RESTORATION EROSION HAZARD REDUCTION
SWIM BEACH FLOOD FENCE DETAILS (2) & SPECIFICATIONS 100% DESIGN
1-:::c (.')
w :::c
F a.. w 0
DATE: JUNE 9, 2014
SHEET: REV:
4 2
TEMPORARY EROSION AND SEDIMENT CONTROL NOTES
1. WORK ON THE PROJECT SHALL NOT BEGIN UNTIL THE LAKE LEVEL DROPS SUFFICIENTLY, PER CONSTRUCTION SEQUENCING ON SHEET 2.
2. THE IMPLEMENTAllON OF THESE TESC PLANS AND THE CONSTRUCllON, MAINTENANCE, REPLACEMENT, AND UPGRADING OF THESE TESC FACILITIES SHALL BE SUPERVISED BY AN INDIVIDUAL WITH EXPERIENCE IN IMPLEMENllNG TESC PLANS.
3. BOUNDARIES OF CLEARING LIMITS IN RIPARIAN VEGETAllON AREAS SHALL BE CLEARLY FLAGGED BY SURVEY TAPE PRIOR TO CONSTRUCTION; DURING CONSTRUCTION PERIOD, NO DISTURBANCE BEYOND THE CLEARING LIMITS SHALL BE PERMITTED.
4. THE TESC FACILITIES SHOWN ON THIS PLAN MUST BE CONSTRUCTED PRIOR TO OR IN CONJUNCTION WITH ALL CLEARING AND GRADING SO AS TO ENSURE THAT THE TRANSPORT OF SEDIMENT TO SURFACE WATERS, DRAINAGE SYSTEM, AND ADJACENT PROPERTIES IS MINIMIZED.
5. THE TESC FACILITIES SHOWN ON THIS PLAN ARE THE MINIMUM REQUIREMENTS FOR THE ANTICIPATED SITE CONDlllONS. DURING THE CONSTRUCTION PERIOD. THESE TESC FACILITIES SHALL BE UPGRADED AS NEEDED FOR UNEXPECTED STORM EVENTS AND MODIFIED TO ACCOUNT FOR CHANGING SITE CONDITIONS (E.G., SUMP PUMP, INST ALLA llON/RELOCA TION OF SILT FENCES, ETC.)
6. THE TESC FACILITIES SHALL BE INSPECTED DAILY AND MAINTAINED TO ENSURE CONTINUED PROPER FUNCTIONING.
7. ANY AREA NEEDING TESC MEASURES, NOT REQUIRING IMMEDIATE ATTENllON SHALL BE ADDRESSED WITHIN FIFTEEN (15) DAYS.
8. WHERE STRAW MULCH FOR TEMPORARY EROSION CONTROL IS REQUIRED, IT SHALL BE APPLIED AT A MINIMUM 2-INCH THICKNESS.
9. WHERE NECESSARY, IN ADDITION TO STRAW BALES, SILT FENCE MAY BE USED FOLLOWING THESE SPECIFICAllONS: FABRIC SHALL BE EQUAL TO "MIRAFLI" WITH 100 LB GRAB TENSILE STRENGTH, 200 PSI BURST STRENGTH, AND 70-200 SIEVE # APPARENT OPENING. SEE DETAIL 4 THIS SHEET.
10. ALL CONSTRUCTION MATERIALS, WASTE MATERIALS, AND DEMOLITION DEBRIS SHALL BE HANDLED AND DISPOSED OF IN A MANNER SO AS TO PREVENT CONTAMINATION OF STORMWATER RUNOFF AND ADJACENT WATERWAYS. CONTRACTOR TO OBSERVE ALL WASHINGTON DEPARTMENT OF FISH AND WILDLIFE HPA REQUIREMENTS FOR EQUIPMENT FLUIDS AND HANDLING.
11. MAINTENANCE AND FUELING OF CONSTRUCTION EQUIPMENT SHALL BE PERFORMED IN SUCH A MANNER TO MINIMIZE THE POTENTIAL CONTAMINATION OF STORMWATER RUNOFF AND ADJACENT WATERWAYS. SPILL CONTAINMENT AND CLEANUP KITS SHALL BE MAINTAINED ONSITE AND ANY SPILLS OF FUELS, HYDRAULIC FLUID, LUBRICANTS, OR OTHER HAZARDOUS MATERIAL SHALL BE CLEANED UP IMMEDIATELY AND PROPERLY DISPOSED OF.
12. EROSION CONTROL MEEllNG ALL WHATCOM COUNTY DESIGN AND CONSTRUCTION STANDARDS SHALL BE DEEMED ACCEPTABLE FOR THIS PROJECT.
13. ALL CONSTRUCTION EQUIPMENT ACCESS SHALL BE ALONG THE GENERAL ROUTES INDICATED ON SHEETS 1 AND 2.
WATER HANDLING:
1. AS LAKE LEVEL DROPS, FLOW AT THE SITE IS TYPICALLY LOW DURING THE FALL SEASON SUCH THAT WORK WILL BE CONDUCTED PRIOR TO HEAVY FALL RAINS. ALL FLOOD FENCES WILL BE CONSTRUCTED ON EXPOSED LAKE/RIVER BED, AWAY FROM THE WETTED CHANNEL EDGE. NO WATER DIVERSION OR COFFERDAMS ARE NEEDED. IN MOST CASES, THE TRENCH MAY BE EXCAVATED, LOG BOLES INSERTED, AND THE TRENCH REFILLED WITH STANDING WATER IN THE TRENCH AND WITHOUT RUNOFF TO STREAM. IF NECESSARY, CREATE A TEMPORARY PUSH-UP BERM USING LOCAL EXPOSED LAKE AND RIVER BED MATERIAL TO PREVENT RUNOFF OF MUDDY WATER INTO STREAM. IF WATER HANDLING IS REQUIRED BECAUSE OF EXCESSIVE CAVING OF TRENCH SIDEWALLS (TYPICALLY ASSOCIATED WITH FINER SUBSTRATES), A PUMP AND INFILTRATION FACILITY SHALL BE EMPLOYED AS DEPICTED ON THIS SHEET.
2. CHANGES TO THE PLAN MUST BE PROPOSED TO AND APPROVED BY THE ENGINEER. THERE SHALL BE A BACKUP PUMP AVAILABLE ON THE PROJECT SITE.
PUMPED DIRTY WATER FROM EXCAVATION; DO NOT OVERFILL, MAINTAINING MAXIMUM PONDED DEPTH = 3"; MIN PUMP CAPACITY = 500 GPM 7
"'" -40· I
TRENCH
SECTION PUSH-UP BERM; NTS
r 2"x2" BY 14 Ga. WIRE OR EQUIVALENT. IF STANDARD STRENGTH FABRIC IS USED
FILTER FABRIC~ MINIMUM 4 "x4" TRENCH
6' MAX.
BACKFILL TRENCH WITH NATIVE SOIL OR 3/4"-1.5"
WASHED GRAVEL
2"x4" WOOD POSTS, STEEL FENCE POSTS, REBAR, OR EQUIVALENT
2' MIN.
12" MIN.
STRAW BALES BUTTED SNUG TOGETHER TO FORM CONTAINMENT PERIMETER, EMBEDDED AND HELD IN PLACE BY DRIVING #4 REBAR INTO GRAVEL SURFACE;
POST SPACING MAY~E INCREASED TO B' IF WIRE BACKING IS USED
JOINTS IN FILTER FABRIC SHALL BE SPLICED AT POSTS. USE STAPLES, WIRE RINGS, OR
EQUIVALENT TO ATTACH FABRIC TO POSTS.
DETAIL SECTION TEMPORARY INFILTRATION AREA;
1 2/13/14 2 5/7/14
NO GAPS ALLOWED BETWEEN ADJACENT BALES. BACKFILL/SCRAPE GRAVEL MATERIAL UP AGAINST EXPOSED BASE OF BALE ON CONTAINMENT SIDE.
REPLACED CABLED STRUCTURES W/ FLOOD FENCES POV
ELIMINATED ARRAYS REQUIRING WATER DIVERSION POV
SILT FENCE BARRIER DETAILS; NTS
PUGET SOUND ENERGY/US FOREST SER~CE SWIFT CREEK LWD RESTORATION EROSION HAZARD REDUCTION
DESIGNED BY: POV, RN r~Resource 0 1" DRAWN BY: PDV Consultants, Inc. TESC & WATER MANAGEMENT DATE: JUNE 9, 2014
CHECKED BY: JE SHEET: REV: PLANS BAR MEASURES ONE INCH PROJECT MGR: POV REDMOND, WA 98052 5 2 NO. DATE REVISION DESCRIPTION BY CHK ON ORIGINAL DRAWINGS PHONE: (425) 556-1288 100% DESIGN
NOTES
1. SEE SHEET 2 FOR PLAN DESCRIPTION.
2. CONTRACTOR TO \£RIFY QUANllTIES FOR BID PURPOSES. SUBSTITUTIONS MAY BE PROPOSED TO ENGINEER FOR APPROVAL.
TABLE 2. QUANTITIES
PURPOSE
JARPASTATS
TESC
FLOOD FENCE
ITEM
CUT & FIL!. VOLUME · FLOOD FENCES CUT & FILL AREA • FLOOD FENCES ACCESS ROAD CLEARl\/GIFILL AREA VEGETATION CLEARING AREA (ON BAR) MA!QMUM AREA OF DISTURBANCE
STRAW BALE (PER TESC INFILTRATION AREA) RESAR SILT FENCE (BACKUP) ACCESS ROAD QUARRY SPALLS (POTENTIAL MA)()
DOUGLAS FIR LOGS (2 BOLESILOG) DOUGLAS FIR LOGS (2 BOLES/LOG) DOUGLAS FIR LOGS (2 BOLESILOG) DOUGLAS FIR LOGS (2 BOLES/LOG) DOUGLAS FIR LOGS (2 BOLES/LOG)
SPEC/DIM AMOUNT UNI T
4691 CY 0.34 ACRE 0.13 ACRE 0.16 ACRE 6.00 ACRE
>1Vv' x 3'L x 1.5'H 31 EA # 4 x 3'L 31 EA
AS NEEDED PER SHEET 8 PER WSDOT 9-13.8 103 CY
11"·12" D9H r. 26'L 30 EA 11"·12" DBH x 2S'l 50 EA 11"-12" D3H x 30'L 12"-15" DBH x 30'l 12' ·15' DBH x 1S'l
10 51 18
EA EA EA
2/13/14 REPLACED CABLED STRUCTURES W/ FLOOO FENCES POV 2 5/7 /14 ELll.41NATED ARRAYS REQUIRING WATER DIVERSION POV
NO. DATE RE\/ISION DESCRIPTION BY CHK
0 100 200
SCALE: 1" = 200'
0 1"
BAR MEASURES ONE INCH ON ORIGINAL DRAWINGS
GENERAL DISTURBANCE LIMITS (APPROX)
OUTERMOST EXTENT, 2 YR FLOOO/OHWM
GENERAL DISTURBANCE LIMITS (APPROX)
PUGET SOUND ENERGY /US FOREST SERVICE SWIFT CREEK LWD RESTORATION EROSION HAZARD REDUCTION
DESIGNED BY: DRAWN BY: CHECKED BY: PROJECT MGR:
PDV, RN PDV JE POV
,,~Resource I~ Consultants, Inc. REDl.40ND, WA 98052 PHONE: ( 425) 556-1288
PERMITTING IN FORMATION, QUANTITIES 100% DESIGN
....
DATE: JUNE 9, 2014
SHEET: REV:
6 2
