NRCS - THUNDER ROAD #3, TRIBUTARY TO QUILEUTE RIVER CULVERT REMOVAL AND REPLACEMENT PLAN CLALLAM COUNTY, WA., WRIA: 20, SITE:

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1 WDFW CONTROL POINT #1 Re-Bar, Elevation Northing Easting WDFW CONTROL POINT #2 Re-Bar, Elevation Northing Easting Spike in Tree Elevation = Elevation = NRCS - THUNDER ROAD #3, TRIBUTARY TO QUILEUTE RIVER CULVERT REMOVAL AND REPLACEMENT PLAN CLALLAM COUNTY, WA., WRIA: 20, SITE: Sheet Index 1 Cover Sheet 2 Erosion Control Plan 3 Erosion Control/General Notes & Details 4 Thunder Road #3 Plan and Prile 5 Stream Channel & Culvert Plan and Prile 6 Dewatering Plan, Notes & Details General Notes & Details FIELD VERIFY AND LOCATE ALL EXISTING UTILITIES PRIOR TO CONSTRUCTION AQUATIC ORG PASSAGE: PS 396 OPEN CHANNEL: PS 582 ACCESS ROAD: PS 560 STREAM HABITAT IMPROVEMENT AND MANAGEMENT: PS 395 Lat: N / Long: W Clallam County WRIA: 20, SITE: Section 22, Township 28N, Range 15W Natural Resources Conservation Service Washington Department Fish & Wildlife Quileute Tribe Nicole Rasmussen Water Quality Biologist Quileute Tribe DATUM ASSUMED This is not a boundary survey. Elevations shown are based on an assumed datum. Topographic information was gathered under direction the engineer for the sole purpose design and construction this project. Property lines, easements, and right way locations displayed are approximate based on information obtained from recorded documents, for reference purposes only. Field data collected To the best my pressional knowledge, judgement, and belief, these plans meet all applicable NRCS practice standards. Signature The Drawings, Construction and material Specifications, and Operation and Maintenance Plans for this project have been reviewed with me and are accepted for this installation. I also acknowledge that any modifications prior to review by the NRCS before implimentation may result in NRCS disapproval this installation. I hereby acknowledge receipt a copy(ies) this plan. Owner/Operator Date Donald C. Ponder, PE Environmental Engineering Section Manager Restoration Division, Habitat Program, WDFW Date CHECKED D. Ponder DRAWN T. Godat 1

2 LEGEND NOTES: SEE SHEET (6) FOR DETAILS OF SANDBAG COFFERDAM, FISH EXCLUSION SCREEN, STREAM DIVERSION PIPE SEE SHEET (3) FOR NOTES & DETAILS. ALL EROSION CONTROL, STABILIZATION PER CLALLAM COUNTY STANDARD DETAILS AND NOTES. COFFERDAM / DIVERSION SPECIFICATIONS SITE: MIN. TOP WIDTH COFFERDAM TOP ELEV. COFFERDAM UPSTREAM I.E. DIVERSION PIPE DIVERSION PIPE DIA. 1 ' " 0+25 FISH EXCLUSION SCREEN APPROX. 18 L.F. SANDBAG COFFERDAM APPROX. 18 L.F. APPROX. 140 L.F. (14" DBH RED ALDER) TO BE REMOVED Elev. = THIS IS NOT A BOUNDARY SURVEY. THESE PLANS ARE INTENDED FOR USE AS TOPOGRAPHICAL MAP ONLY ELEVATIONS SHOWN ARE BASED ON LOCAL ASSUMED DATUM Scale: Horiz 1" = 10' CLEARING LIMITS Ex Edge Roadway 0+5 X 12" STREAM DIVERSION PIPE APPROX. 155 LF. APPROX. 80 L.F ROAD CLEARING LIMITS 1+00 THUNDER PRESERVE TREE IN PLACE 1+00 WDFW Re-Bar #1 Elev. = WDFW Re-Bar #2 Elev. = Elev. = APPROX. 40 L.F. FISH EXCLUSION SCREEN APPROX. 40 L.F. WDFW CONTROL POINT #1 Re-Bar, Elevation Northing Easting APPROX. 120 L.F. PRESERVE TREE IN PLACE CLEARING LIMITS SANDBAG COFFERDAM APPROX. 55 L.F. WDFW CONTROL POINT #2 Re-Bar, Elevation Northing Easting " STREAM DIVERSION PIPE APPROX. 155 LF 2+14 Spike in Tree Elevation = Elevation = DIVERSION & EROSION CONTROL PLAN SCALE: 1" = 10' CHECKED DRAWN D. Ponder T. Godat 2

3 TYPICAL DETAIL N.T.S. TYPICAL SECTION VIEW N.T.S. DATA COLLECTION NOTES 1. THIS DATA COLLECTION WAS PREFORMED ON IN SUPPORT OF THE DESIGN AND IS INTENDED TO BE USED FOR THIS PURPOSE. 2. THE VERTICAL DATUM AT TBM 1 IS AN ASSUMED ELEVATION OF 100 FEET. 3. THIS IS NOT A PROPERTY BOUNDARY SURVEY, PROPERTY AND RIGHT OF WAY LINES HAVE NOT BEEN DETERMINED. 4. UNDERGROUND UTILITIES WERE NOT EXAMINED OR CONSIDERED AS PART OF THIS EFFORT. 5. CONTOUR INTERVAL IS 1 FOOT. CONSTRUCTION SEQUENCE 1. CALL FOR A PRE-CONSTRUCTION MEETING WITH THE PROJECT SPONSOR, CONSTRUCTION INSPECTOR AND LANDOWNER. 2. PERFORM CONSTRUCTION STAKING. CONSTRUCTION STAKING WILL BE PERFORMED BY WDFW or NRCS INSPECTOR AND ENGINEER. 3. CONSTRUCT DEWATERING SYSTEM. 4. DEFISH PROJECT SITE, THE CONTRACTOR IS RESPONSIBLE FOR MEETING THIS REQUIREMENT. IF WDFW IS NOT AVAILABLE. 5. REMOVE EXISTING CULVERTS, COMPACT SUBGRADE, PLACE GEOTEXTILE, PLACE SPALLS, PLACE LEVELING COURSE, PLACE FOOTINGS, PLACE ARCH ON FOOTINGS, GROUT, BACKFILL AND COMPACT, INSTALL HEADWALL AND WINGWALLS, COMPLETE BACKFILL, INSTALL SAFETY DELINEATORS AND RIPRAP. 6. REMOVE DEWATERING SYSTEM FOLLOWING INSTALLATION OF CULVERT, FOOTING, CHANNEL MATERIAL, HEADWALLS AND WINGWALLS.. FINAL ROAD SURFACING 8. STABILIZE ALL DISTURBED AREAS WITHIN DAYS OF COMPLETION. REVEGETATE AND REMOVE WASTE MATERIALS FROM SITE AS APPROVED BY THE SPONSOR AND LANDOWNER. GENERAL CONSTRUCTION NOTES 1. ALL PERMITS NECESSARY TO CONSTRUCT THE PROJECT HAVE BEEN OBTAINED BY THE QUILEUTE TRIBE. COPIES OF THE PERMITS SHALL BE MAINTAINED ON SITE BY THE CONTRACTOR AND MADE AVAILABLE WHEN/IF REQUESTED. 2. THE CONTRACTOR SHALL BE RESPONSIBLE FOR COMPLYING WITH ALL PERMIT TERMS AND CONDITIONS. 3. THE ATTACHED NRCS CONSTRUCTION AND MATERIAL SPECIFICATION ARE PART OF THIS PLAN AND SHALL GOVERN THE INSTALLATION OF THIS PROJECT. 4. THIS PROJECT SHALL BE CONSTRUCTED TO THE LINES AND GRADES SHOWN IN THE AND DETAILED IN THE CONSTRUCTION SPECIFICATIONS. 5. MAINTAIN MINIMUM OF 5' OF CLEARANCE FROM TREES MARKED FOR PRESERVATION. 6. TREE LIMBING MAY BE NECESSARY ON THE TREES MARKED FOR PRESERVATION - HOW MUCH AND HOW WILL BE DISCUSSED WITH THE CONTRACTOR AT THE SITE SHOWING. EROSION CONTROL & GENERAL NOTES & DETAILS CHECKED DRAWN D. Ponder T. Godat 3

4 Elev. = WDFW CONTROL POINT #1 Re-Bar, Elevation Northing Easting WDFW CONTROL POINT #2 Re-Bar, Elevation Northing Easting Spike in Tree Elevation = Elevation = STA ELEVATION 99.0 STA :1 TAPER (TYP.) THUNDER 0+25 Elev. = ROAD STA 1+.00, 1.1'LT SB ELEV WDFW Re-Bar #1 Elev. = 2+50 THUNDER ROAD #3 PLAN VIEW Scale: Horiz 1" = 10' STA , 19.8'RT IE SB ELEV WDFW Re-Bar #2 Elev. = :1 TAPER (TYP.) STA ELEVATION EXISTING ROAD GRADE STA BVCS: BVCE: PVI STA: PVI ELEV: K: LVC: HIGH PT. STA: HIGH PT ELEV: STA 1+.00, 1.1'LT EVCS: EVCE: % -2.6%.00 STA ELEVATION ROAD PROFILE.00 STA , 19.8'RT IE STA ELEVATION SCALE: Horz.1"=10',Vert.1"=5' CHECKED D. Ponder DRAWN T. Godat 4

5 STA END SB ELEV ROAD STA END STREAMBED ELEVATION THUNDER ROAD #3 PLAN VIEW Scale: Horiz 1" = 10' STA BEGIN STREAMBED ELEVATION FILL EXISTING CHANNEL WITH SPOILS TO MATCH NATIVE THUNDER FILL EXISTING CHANNEL WITH SPOILS TO MATCH NATIVE STA END STREAMBED ELEVATION PROPOSED STREAMBED GRADE EXISTING STREAMBED GRADE STA BEGIN STREAMBED ELEVATION STA END SB ELEV :1 ROAD STA ELEVATION :1 STA END STREAMBED ELEVATION STREAM PROFILE SCALE: Horz.1"=10',Vert.1"=5' STA END IE SB ELEV CHECKED D. Ponder DRAWN T. Godat 5

6 TOP BANK TOE STREAM CHANNEL PERFORATED SHEET FISH SCREEN CLEANED DAILY. DAM 3'-0" HIGH MIN. PERFORATED SHEET FISH SCREEN CLEANED DAILY. OR NATIVE STREAM BED GRAVEL PLACED BY HAND. TOE IN FRONT OF PLASTIC INTO STREAM BED 1:1 MIN., 1'-0" DEEP. DEWATERING PIPE ENGINEER TO VERIFY SIZE REQUIREMENT AT TIME OF CONSTRUCTION. ROUND STREAM BED ROCK. 6 MIL. POLYETHYLENE PLASTIC SHEETING. ISOLATED WORK AREA DAM 3'-0" HIGH MIN. 6 MIL. POLYETHYLENE PLASTIC SHEETING. OR NATIVE STREAM BED GRAVEL PLACED BY HAND. STREAM BED CHECKED D. Ponder DRAWN T. Godat 6

7 NEW CHANNEL THALWEG STREAMBED GRAVEL MIX 1.0' MIN. THICKNESS ' MIN. NOTE: ALL SPOIL MATERIAL NOT USED IN SPOIL BERM CONSTRUCTION IS TO BE HAULED TO DESIGNATED SPOIL SITE. PLACE SPOILS ADJACENT TO EXISTING SPOIL MATERIAL. SLOPE TOP TO DRAIN, GRASS SEED AND MULCH. TYPICAL CHANNEL CROSS SECTION Scale: 1" = 3' Horz. & 1" = 2' Vert. 8' (EXTENT OF STREAMBED) SEE THIS SHEET FOR STREAMBED MATERIAL SPEC. SLOPE 3:1 EXISTING ROAD WIDTH SLOPE 3:1 TOE OF BERM C L 14' 2% 2% TYPICAL SPOIL AREA PLAN VIEW NTS VARIES 2:1 MAX. SLOPE 6" MIN. DEPTH SURFACING TOP COURSE TYPICAL ACCESS ROAD SECTION NTS 2:1 MAX. SLOPE VARIES GENERAL NOTES: ALL CONSTRUCTION IN O.H.W. SHALL BE PERFORMED WITHIN THE SPECIFIED IN WATER WORK WINDOW. CONSTRUCT THE CHANNEL TO PROPOSED GRADES, CONTOURS & LINES. ROUGH STREAMBED GRADES TO BE STAKED BY ENGINEER OR REPRESENTATIVE. CONTRACTOR SHALL MATCH THE RECONSTRUCTED PATH GRADE TO THE EXISTING PATH AT PROPOSED LOCATIONS. PROJECT ENGINEER TO DIRECT THE SHAPING OF THE FINAL STREAMBED SURFACE TO INCLUDE HABITAT FEATURES. 1 3 SPOILS TYPICAL CROSS SECTION A-A NTS ' SUBGRADE ALL FINISH PATHWAY GRADING SHALL PROVIDE POSITIVE DRAINAGE TO PREVENT POOLED SURFACES. CHECKED D. Ponder DRAWN T. Godat