LOCATION: GROVELAND BEACH PARK PARCEL No: SECTION S24, T24E, RANGE 4E LAT: N LONG: W

Transcription

1 Exhibit A

2 EXISTING ONDITIONS LAT: N LONG:.069 W VERTIAL: NGVD 988 VALUES DERIVED USING RTK-GPS WATER BODY: LAKE WASHINGTON AND THE WASHINGTON STATE REFERENE NETWORK. DATE: /07/07 EXISTING ONDITIONS FIGURE SHEET: OF 5

3 "SWIM AREA, NO BOATS" BUOY PIER MODIFIATIONS SEE FIG-7 - FIG- NEW SWIM BUOY LINE REPLAED IRRIGATION INTAKE, SEE FIG-3 HAZARD BUOY NORTH SHORE RESTORATION SEE FIG-4 NEW OHWM 8.75 FIG-6 WAVE ATTENUATORS EXISTING OHWM 8.75 EXISTING PIER TO BE MODIFIED 67' EXISTING RAILROAD TIE RETAINING WALL EXISTING IRRIGATION INTAKE TO BE REMOVED OHWM 8.75 WAVE ATTENUATOR MOORING ABLES EX. IRRIGATION ONTROL VALVE BOXES ORDINARY HIGH WATER (OHW) 8.75 ANHORING DEVIES REMOVE WOOD PIER IN ITS ENTIRETY AND RESTORE SHORELINE, SEE FIG-4 FOR RESTORATION 4' EXISTING ONRETE RETAINING WALL IMPROVEMENTS OVERVIEW LAT: N LONG:.069 W VERTIAL: NGVD 988 VALUES DERIVED USING RTK-GPS WATER BODY: LAKE WASHINGTON AND THE WASHINGTON STATE REFERENE NETWORK. DATE: /07/07 IMPROVEMENTS OVERVIEW FIGURE 3 SHEET: 3 OF 5

4 REMOVE EXISTING LOG SEAWALL HAZARD BUOY IRRIGATION INTAKE SYSTEM FIG-3 8" EDAR LOG EXISTING OHW 8.75 PROPOSED OHW 8.75 EXISTING ONRETE RETAINING WALL TO REMAIN " SOKEYE SPAWNING MIX 67' 8" EDAR LOG REMOVE EXISTING IRRIGATION INTAKE REMOVE WOOD PIER IN ITS ENTIRETY AND FILL PILING VOIDS W/ SOKEYE SPAWNING MIX OHW 8.75 EXISTING ON. SEAWALL TO REMAIN B FIG A FIG-5 ONRETE STAIRS BRUSH LAYERING 5'X4' ONRETE LANDING -4 MAN HABITAT BOULDERS, TOP OF BOULDERS: TO BOTTOM OF BOULDERS: 8 TO 9 ONRETE STAIRS RR TIE RETAINING WALL TO REMAIN NORTH SHORE RESTORATION PLAN LAT: N LONG:.069 W VERTIAL: NGVD 988 VALUES DERIVED USING RTK-GPS WATER BODY: LAKE WASHINGTON AND THE WASHINGTON STATE REFERENE NETWORK. DATE: /07/07 NORTH SHORE RESTORATION PLAN FIGURE 4 SHEET: 4 OF 5

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7 (E) WOOD POST AND GUARDRAILS AT 4'-0" O.., TYP SEE DETAIL /S3. (E) 4x STRINGERS, TYP. A 8' 3 B PILE, TYP TYP. AT ALL PILE PAIRS FIG- 4' 40'-3" (E) SWIM LADDER A FIG-8 FIG-8 (E) LIFE GUARD LOOKOUT (E) 4x STRINGERS, TYP. (E) 3x RIM AND ROUGH SAWN x8 SKIRT WALL/WAVE BREAK (E) PILE PAIR, TYP. ALL SKIRTING ALONG PIER TO BE REMOVED SEE FIG-0 07' TYP. BRAING AT ALL PILE PAIRS FIG- (E) WOOD POST AND GUARDRAILS AT 4'-0" O.., TYP SEE DETAIL /S3. (E) ON BULKHEAD, TYP TO REMAIN D TIMBER BULKHEAD AND ASPHALT TO REMAIN 6' NOTE: DIMENSIONS PROVIDED ARE INFORMATIONAL. GENERAL ONTRATOR SHALL FIELD VERIFY ALL DIMENSIONS. KEY LOATION OF (E) TIMBER PILE ("Ø, TYP.) LOATION OF PILES PREVIOUSLY REPAIRED BY "ANNING". PIER MODIFIATION PLAN SALE: " = 30' A REFERENE GRID LINE REFERENE GRID LINE LAT: N LONG:.069 W VERTIAL: NGVD 988 VALUES DERIVED USING RTK-GPS WATER BODY: LAKE WASHINGTON AND THE WASHINGTON STATE REFERENE NETWORK. DATE: /07/07 PIER MODIFIATION PLAN FIGURE 7 SHEET: 7 OF 5

8 3'-6" ANGLED VIEW LINE OF (E) WOOD RAIL WATER LINE (VARIES) 8' 9' 3 APPROXIMATE MUD LINE A FIG-8 PIER SETION SALE: "=30' A NOTE 3 4 FIG-0 4x 4'-0"oc, TYP. 5 FIG-0 3 NOTE 5 FIG-0. NOTES: ONTRATOR FIELD VERIFY ALL DIMENSIONS. 4x STRINGERS B (OPP.). 3. ANGLE BRAING PER DETAILS. ALL STEEL SHALL BE HOT-DIPPED GALV. ALL BRAING SHALL BE INSTALLED INSIDE THE PIER FOOTPRINT. ONTRATOR ENSURE 4x 4'-0"o.c. BETWEEN GRIDS "A" AND "B". WHERE MISSING, INSTALL 4x0 EDAR BEAMS TIGHT TO UNDERSIDE OF ONRETE SLAB AND ONNETED TO (E)4x STRINGERS WITH () SIMPSON GA ( MAX.) ANGLES EA. END. NOTE 3 FIG- TYP. AT ALL PILES PAIRS GRIDS B TO D SURVEYOR'S NOTE: ELEVATION OF ORDINARY HIGH WATER AS ONTROLLED AT THE BALLARD LOKS EQUALS 8.75 FEET. FIG-8 NORTH END BRAING PLAN SALE: " = 0' LAT: N LONG:.069 W VERTIAL: NGVD 988 VALUES DERIVED USING RTK-GPS WATER BODY: LAKE WASHINGTON AND THE WASHINGTON STATE REFERENE NETWORK. DATE: 0/3/07 PIER SETION & NORTH END BRAING PLAN FIGURE 8 SHEET: 8 OF 5

9 REMOVE & SAFELY DISPOSE OF (E) TIMBER BRAING WATER LINE (VARIES) 5 8 "Ø S THRU-BOLT 5 8 "Ø S THRU-BOLT TAP IN FIELD 4' PILE L PILE L 3 L 4x4x 4 HD GALV. BRAES PILE L 5 FIG-0 4' PILE X-BRAING SALE: 3/6" = ' (E) 4x STRINGER WATER LINE (VARIES) (E) TIMBER PILES 5 8 "Ø STAINLESS STEEL THRU-BOLT, TYP. 5' BRAE POINT 3 TYPIAL BRAING AT NORTH END SALE: 3/6" = ' LAT: N LONG:.069 W VERTIAL: NGVD 988 VALUES DERIVED USING RTK-GPS WATER BODY: LAKE WASHINGTON AND THE WASHINGTON STATE REFERENE NETWORK. DATE: 0/3/07 NORTH END BRAING DETAILS OF 3 FIGURE 9 SHEET: 9 OF 5

10 (E) 4x STRINGER (E) 4x SPLIE BLOK " 4" 4" (E) 4x BEAM 0" L 4x4x 4 EA. SIDE W/ () 5 8"Ø X 3" STAINLESS STEEL LAGS TO (E) BEAM & (4) 5 8"Ø x 6" STAINLESS STEEL LAGS TO (E) PILE 3' (E) PILE " 4 FIG-0 POSITIVE ONNETION AT (E) STRINGER SPLIE SALE: 3/8" = ' (E) ONRETE SLAB (E) 4x STRINGER L 4x4x 4 HD GALV. W/ () 5 8" x 3" STAINLESS STEEL LAGS TO (E) STRINGER & (5) 5 8"Ø x 6"o.c. STAINLESS STEEL '-0"o.c. TO (E) PILE. () 5 8"Ø STAINLESS STEEL THRU-BOLT W/ " STAINLESS STEEL P WASHER AT BRAE POINT " 4" 4" 0" WATER LINE (VARIES) 4'-0" L 4x4x 4 HD GALV. RAE PROVIDE THRU-BOLT AT BRAE POINT 3 BRAE POINT 6'-0" ANGLE BRAE PER 3/S3.0 4" MIN. " (E) TIMBER PILE ("Ø TYP.) 5 FIG-0 LAT: N LONG:.069 W NORTH END BRAING - SETION SPLIE SALE: 3/8" = ' VERTIAL: NGVD 988 VALUES DERIVED USING RTK-GPS WATER BODY: LAKE WASHINGTON AND THE WASHINGTON STATE REFERENE NETWORK. DATE: 0/3/07 NORTH END BRAING DETAILS OF 3 FIGURE0 SHEET: 0 OF 5

11 () 4" x 6" SIMPSON SDS EA. POST ADD x6 EDAR IN '-0" LENGTHS TO (E) TOP RAIL W/ ()0.3 x 3" WOOD 6" O.. (E) 4x4 4'-0"o.c. x6 EDAR (FLAT) W/ ()0.3"Ø x 3 " WOOD SREWS TO EA. POST AT ALL POST LOATIONS, REMOVE (E) DETERIORATED SHIM BLOK AND REPLAE WITH EDAR SHIM BLOK TO FIT. TIGHTEN DOWN (E) LAGS, EQ. THEN INSTALL NEW SDS. EQ. ADD () 4" x 6" SIMPSON SDS BETWEEN ()(E) BOLTS 4x STRINGER, TYP. TYPIAL EXISTING RAIL STRENGTHENING DETAIL SALE: /" = ' REMOVE AND REPLAE SPLIT 4x4 POSTS (ASSUME 0 FOR BIDDING PURPOSES) W/ (N) 4x4 EDAR 4 L L 6x6x 4 (HD GALV.) EA. PILE PAIR A36 END P 6x6x 4 W/ 5 8"Ø x 3" LAG TO (E) STRINGERS AT ENTER OF PLATE " WATER LINE (VARIES) 4" L 4x4 BRAE POINT TYPIAL BRAING AT PILE PAIRS GRIDS B DTO FIG- SALE: /" = ' LAT: N LONG:.069 W VERTIAL: NGVD 988 VALUES DERIVED USING RTK-GPS WATER BODY: LAKE WASHINGTON AND THE WASHINGTON STATE REFERENE NETWORK. DATE: 0/3/07 NORTH END BRAING DETAILS 3 OF 3 FIGURE SHEET: OF 5

12 EXISTING WOOD SKIRTING TO BE REMOVED EXISTING WOOD SKIRTING - SOUTH SETION OF PIER N'.T.S EXISTING WOOD SKIRTING TO BE REMOVED EXISTING WOOD SKIRTING - NORTH SETION OF PIER N'.T.S LAT: N LONG:.069 W VERTIAL: NGVD 988 VALUES DERIVED USING RTK-GPS WATER BODY: LAKE WASHINGTON AND THE WASHINGTON STATE REFERENE NETWORK. DATE: 0/3/07 EXISTING WOOD SKIRTING FIGURE SHEET: OF 5

13 HAZARD BUOY SUBMERGED 4" STAINLESS FLANGE BOLTED TO TOP AND BOTTOM OF SREENING FILTER INTAKE "SWIM AREA, NO BOATS" BUOY TO HAVE SIMILAR ANHORING SYSTEM LAKE WATER LEVEL VARIES HAZARD '-0" '-6" 8 "X4"x4" STAINLESS STEEL PERFORATED PLATES (TYP. ALL 6 SIDES) 4" STAINLESS INTAKE PERFORATED PIPE 0.094" PERFORATIONS AT " O.. TRIANGULAR SPAING '-6" 3/8"X5" EYE BOLT SEURED TO " SQUARE SHAFT EL 3.5 ± 4" STAINLESS INTAKE PERFORATED PIPE ' '-6" MIN EL.5 ± EL 9.00 ± /4"Ø ABLE 4" STAINLESS FLANGE BOLTED TO TOP OF SREENING FILTER INTAKE " STAINLESS STRAP 8"X8"x4" STAINLESS STEEL PERFORATED PLATES STRUT HANNEL 48" () HELIX ANHOR SYSTEM STAINLESS FLANGE BOLTED TO BOTTOM OF SREENING FILTER INTAKE 4" SOLID SR 9 HDPE PIPE 8" HELIX DISKS NOTE: THE INTAKE SYSTEM IS LOATED AT 67' FROM THE OHW AND DEPTH OF 9± AT BOTTOM OF THE LAKE HAZARD BUOY IRRIGATION INTAKE NEW LOATION EX. IRRIGATION INTAKE VAULT TO BE REMOVED LAT: N LONG:.069 W IRRIGATION INTAKE SALE: /" = ' 3 8± BURIED PIPE 4 5 4" SR9 HDPE PIPE VERTIAL: NGVD 988 VALUES DERIVED USING RTK-GPS WATER BODY: LAKE WASHINGTON AND THE WASHINGTON STATE REFERENE NETWORK. DATE: 0/3/ IRRIGATION INTAKE / PIPE PLAN LAYOUT SALE: " = 0' FIG IRRIGATION INTAKE SYSTEM DETAILS SALE: AS SHOWN 4 5 EX. INTAKE PIPE APPROXIMATE LOATION 6 ONTRATOR TO LOATE EX. INTAKE PIPE AND DETERMINE A POINT OF ONNETION PRIOR TO ONSTRUTION OF THE NEW INTAKE VAULT. IRRIGATION INTAKE SYSTEM FIGURE3 SHEET: 3 OF 5 7 8

14 5 4 3 MITIGATION ELEMENTS: REMOVE ALL LARGE PIER WOOD SKIRTING. REMOVE SMALL WOOD PIER AND 4 PILES IN ITS ENTIRETY REPLAE 66 LF. OF BULKHEAD WITH SOFT SHORELINE BIO ENGINEERED SLOPE STABILIZATION. PROVIDE WILLOW SHORELINE PLANTINGS PROVIDE " DEEP SOKEYE SPAWNING MIX 70 Y MITIGATION PLAN OVERVIEW LAT: N LONG:.069 W VERTIAL: NGVD 988 VALUES DERIVED USING RTK-GPS WATER BODY: LAKE WASHINGTON AND THE WASHINGTON STATE REFERENE NETWORK. DATE: 0/3/07 MITIGATION PLAN OVERVIEW FIGURE4 SHEET: 4 OF 5

15 8" EDAR LOG 8 S OSE 8" EDAR LOG 9 S ARA 4" HDPE INTAKE PIPE " SOKEYE SPAWNING MIX 8" EDAR LOG 6: OHW : MULH TURF SEED MIX 6: OIR WRAPP 8" TRENH -4 MAN HABITAT BOULDERS 3: BRUSH LAYERING FORBS SEED MIX ON EMBANKMENT 9 S OSE MULH OIR WRAPPED ON SOIL LIFT ONRETE STAIRS 6 RP UPA TRENH BRUSH LAYERING TURF SEED MIX SOKEYE SPAWNING MIX PLANT SHEDULE KEY BOTANIAL NAME OMMON NAME SIZE OSE SARA RUPA ON ENTER SPAING SALIX SOULERIANA SOULER'S WILLOW LIVE BRANHES 8" 8" BRUSH LAYERING SALIX LUIDA ORNUS SERIEA SAMBUUS RAEMOSA PAIFI WILLOW LIVE BRANHES 8" 8" BRUSH LAYERING RED OSIER DOGWOOD GALLON AS SHOWN INDIVIDUAL PLANTINGS RED ELDERBERRY GALLON AS SHOWN INDIVIDUAL PLANTINGS RUBUS PARVIFLORUS THIMBLEBERRY GALLON AS SHOWN INDIVIDUAL PLANTINGS USE LAT: N LONG:.069 W VERTIAL: NGVD 988 VALUES DERIVED USING RTK-GPS WATER BODY: LAKE WASHINGTON AND THE WASHINGTON STATE REFERENE NETWORK. DATE: 0/3/07 NORTH SHORE LANDSAPING PLAN FIGURE5 SHEET: 5 OF 5