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Home My WebLink About20140802 Ver 2_Details S_20180314845 840 835 830 825 0+40 PRE-EXISTING GROUND PROPOSED GRADE r BEIM H:3 _ DEPTH VARIES - -- BANKFULL ELEVATION VARIES (SEE PROFILE) -� BENCH -►{ RE -USE SANDY GRAVEL BARS WITHIN REVETMENTS 0+60 0+80 1+00 1+20 1+40 1+60 CROSS-SECTION WITH BANK GRADING ONLY SEE SHEET G4.0 & C5.0 SCALE V =10' PROPOSED GRADE 845 BENCH 840 V:1 PH H:3 1 835 2 - —� BANKFULL ELEVATION VARIES (SEE PROFILE) 830 LONGITUDINAL PEAKED STONE TOE - -BW- - - 825 I 0+00 0+20 0+40 0+60 0+80 %1 CROSS-SECTION WITH STONE U SEE SHEET C-4 0 & C5.0 SCALE 1' = 10' GENERAL NOTES 1. CHANNEL DIMENSIONS ARE DERIVED FROM FINAL CONSTRUCTION DRAWINGS BYALTAMONT ENVIRONMENTAL AND THE REQUIREMENTS OF THE APPROVED FEMA 'NO IMPACT' CERTIFICATION_ 2. SOME CHANNEL CROSS SECTIONS WILL BE CONSTRICTED WITH EITHER STONE OR GRADING OPERATIONS TO MEET THE SPECIFICATIONS HEREIN (E.G. BW- BOTTOM WIDTH) 3. IF SOME PORTIONS OF THE CHANNEL APPEAR TO BE MORE NARROW THAN THE SPECIFICATION PROVIDED HEREIN, THE CHANNEL SHALL NOT BE WIDENED FROM ITS EXISTING STATE (LE THIS WORK WILL MAKE THE CHANNEL MORE NARROW IN SOME LOCATIONS, BUT IT WILL NOT MAKE IT WIDER AT ANY LOCATION). NORTH PACOLET RIVER North Carolina Sheet R-01 zjpj-?--"0-6* TYPICAL SECTIONS—DIMENSIONS October 3, 2017 845 840 835 830 825 1+80 _p PROTECT EXISTING VEGETATION 4 WHERE DIRECTED 645 840 �I 835 830 825 1+00 1+20 SYMBOL DESCRIPTION SPECIFICATION BW BOTTOM WIDTH 35 FT BENCH 'BANKFULL" BENCH 10 FT PH PEAK HEIGHT 1.0 FT BELOW *BANKFULL' ELEVATION ROBINSON DESIGN ENGINEERS" Land.Water. Ecology. -BDFr __ �'Y SPAM _�'� TIE -BACK _ CONTINUOUSAND B - n EXISTING BANK SMOOTH RADIUS P � LPST - 201T MIN KEYWAY $1 INCORPORATE STREAM ,\ BARB AT EACH TIE -BACK %1 PLAN VIEW DESCRIPTION NTS LONGITUDINAL PEAKED STONE TOE (LPST) DESIGN NOTES 1. THIS REVETIAENT HAS BEEN DESIGNED IN ACCORDANCE WITH DESIGN PROCEDURES AND METHODS PUBLISHED BY THE ' TRANSPORTATION RESEARCH BOARD, NCHRP PROJECT 24.19 -._, °v t, 2. CHANNEL DIMENSIONS ARE DERIVED FROM FINAL CONSTRUCTION DRAWINGS BYALTAMONT ENVIRONMENTAL AND THE' ' REQUIREMENTS OF THE APPROVED FEMA "NO IMPACT' CERTIFICATION. 1.0 FT BELOW'BANKFULL' 3. STONE SHALL CONFORM TO NRCS MATERIAL SPECIFICATION #23. STONE SIZE GRADATIONS SHALL BE SUBMITTED FOR APPROVAL. 4. STONE ARMORING SHALL BE PROTRUDING OUT OF FINAL GRADE IN ALLAREAS (I.E. BURIED BUT NOT 'HIDDEN' FROM THE FLOW). 5. INTERSTITIAL SPACE BETWEEN STONE SHOULD BE BACKFILLED WITH THE CHINKING STONE TO CREATE ATIGHTLY-PACKED MATRIX OF STONE ARMORING. 6. WHILE INSTALLING FOOTER STONES AND WEIR STONES, FINAL ARRANGEMENT SHALL RESIST FORCES IN THE STREAMWISE DIRECTION.THE FINISHED FORM OF PLACED STONE SHOULD BE THAT OF IMBRICATION: THE ROCKS POUNDED INTO A PREFERRED ORIENTATION SUCH THAT THEY OVERLAP ONE ANOTHER INA CONSISTENT FASHION (COMPARABLE TO TOPPLED DOMINOES). SYMBOL DESCRIPTION SPECIFICATION BW BOTTOM WIDTH 35 FT T STONE THICKNESS 3.5 FT PH PEAK HEIGHT 1.0 FT BELOW'BANKFULL' SPREAD BOTTOM SPREAD VARIES, 6 FT MINIMUM OF STONE TOE TIE -BACK SECTION u TL TF -BACK LENGTH 10FT MIN STONE CLASS SPECFICATION LARGE D35 8' STONE D50 12' D75 18' CHINKING 035 1.5' STONE D50 3.0' D75 4.0' SANDY SOURCEDFROM NA GRAVEL CHANNEL 9" LAYER OF CHINKING STONE NORTH PACOLET RIVER North Carolina Sheet: R-02 1 BANKFULLOHATIONVARIES (SEE PROFILE) �— BASEFLOW WS BANKFULL ELEVATION VARIES (SEE PROFILE) -&- BW i tom. t`iA i EXISTING BANK AND MATUREd P y VEGETATION TO BE PRESERVED ANTICIPATED' FUTURE DEPOSITION PH 1 1 SPREAD A LPST SECTION NOT TO SCALE TLT STREAM BARBi� SEE SHEET R-03 - _.2 9" LAYER OF CHINKING STONE 6' LAYER OF SANDY GRAVEL TIE -BACK SECTION u NOT TO SCALE VARIES -30FT T — BW — Q a PH r 9' LAYER OF CHINKING STONE 6' LAYER OF SANDY GRAVEL ROOTWAD —� KEYWAY SECTION TOE -WOOD NOT TO SCALE LONGITUDINAL PEAKED STONE TOE October 3, 2017 ROBINSON DESIGN ENGINEERS" Land.Water. Ecology. SYMBOL DESCRIPTION SPECFICATM L BARB LENGTH APPROXIMATELY 30 FT" DEPENDENT ON WEIR SLOPE AND BANKFULL• WIDTH KL KEY LENGTH 2OFT MIN EXTEND BEYOND BANKFLAL' BENCH AH HORIZONTALANGIE 20 - 30 DEGREES TANGENT TO THE BEND W1 WIDTH AT THALWEG WIDTH OF SINGLE STONE (45FT) W2 WIDTH AT BANK 6FT AIN T1 THICKNESS THALWEG WIDTH OF SINGLE STONE (-1.5F1) T2 THICKNESS AT BANK BANK HEIGHT (4 - SFT) T3 BURY DEPTH 2 5FT BELOW EXISTING EXISTING BED STREAM BARB DESIGN NOTES 1. THIS REVETMENT HAS BEEN DESIGNED IN ACCORDAN M WITH DESIGN PROCEDURES AND METHODS DEVELOPED BY THE USDA -MRCS, TECHNICAL NOTE 23. 2 STREAM BARBS ARE MEANT TO AUGMENT REVET ENT DESIGN (TOE -WOOD AND GEOLIFTS OR LPST). 3. STREAM BARBS SHOULD BE AN ANCHORING INTERMEDIARY FEATURE. WHEREVER THE BANK IS TRANSITIONING FROM GEOLIFTS TO VEGETATION PLANTING, THERE SHALL BE A STREAM BARB KEYED INTO THE TRANSITION. 4. THE CONTRACTOR SHALL SUBMIT STONE SIZE GRADATION FOR APPROVAL STONE SHALL CONFORM TO GRADATION SIZES FOUND HEREIN, AND TO NRCS MATERIAL SPECIFICATION #23. 5 KEY PORTION OF THE BARB SHALL BE SEAMLESSLY INTEGRATED INTO THE TOE -WOOD AND GEOUFTS. STONE ARMORING SHALL BE PROTRUDING OUT OF FINAL GRADE IN ALLAREAS (I.E. BURIED BUT NOT 'HIDDEN' FROM THE FLOW) 5 INTERSTITIAL SPACE BETWEEN STONE SHOULD BE BACKFILLED WITH THE CHINKING LAYER TO CREATE R TIGHTLY -PACKED MATRIX OF STONE ARMORING (SEE BARB SECTION). 6 WHILE INSTALLING FOOTER STONES AND WEIR STONES, FINAL ARRANGEMENT SHALL RESIST FORCES IN THE STREAMWISE DIRECTION. THE FOOTER STONES SHALL PREVENT THE WEIR STONES FROM ROLLINC DOWN -STREAM THE FINISHED FORM OF BARB SHOULD BE THAT OF IMBRICATION: THE ROCKS POUNDEE INTO A PREFERRED ORIENTATION SUCH THAT THEY OVERLAP ONE ANOTHER IN ACONSISTENT FASHION (COMPARABLE TO TOPPLED DOMINOES). - }'BANKFULL' STREAM WIDTH (15 FT MAX) 1 IMBRICATED STONES NTERSTn1ALFILL \ R CFWNNELBOTTOM �> C BARB SECTION %: NORTH PACOLET RIVER North Carolina Sheet R-03 4�17 -!O —>xi A PLAN VIEW NOT TO SCALE EXISTING THALWEG - PROPOSED THALWEG — THALWEG TOE -WOOD AND ROOT WADS GEOLIFTS "BANKFULL"BENCH PRE-EXISTING GROUND - PRE-EXISTING BANK - PROPOSED GRADE STONE ARMORING (D50=18') -- 9' 9' LAYER OF CHINKING STONE 7 N BANKFULLWS - BASEFLOW WS WEIR SLOPE 6°/0-10°l0 9" LAYER OF CHINKING STONE O O Q g 6" LAYER OF SANDY GRAVEL GEOLIFTS r� CHANNEL SECTION T1 TOE -WOOD AND ROOT WADS 1 COMPACTED FILL \ � NOT TO SCALE STREAM BARB DETAILS October 3, 2017 T3 ROBINSON DESIGN ENGINEERS'" Land.Water. Ecology. PROTECT EXISTING VEGETATION WHERE DIRECTED 845 � I 640 835 830 625 0+00 BANKFULL ELEVATION VARIES (SEE PROFILE) -ag-- I �— BW 0+20 0+40 0+60 TYPICAL SECTION FOR LPST AND GEOLIFT OVERLAP SEE SHEET C-5.0 GENERAL NOTES FOR OVERLAP 1. CONTRACTOR SHALL ENSURE BOTTOM WIDTH MEASUREMENT (BW) MEETS THE SPECIFICATION HEREIN, 2. THE LPST SHALL SMOOTHLY TAPER INTO THE PROPOSED BANK. THIS WILL REQUIRE EITHER OVER -EXCAVATING TO EMBED STONE INTO THE BANK AND I OR BUILDING OUT GEOLIFTS INTO THE CHANNEL- DEPENDING ON FIELD CONDITIONS. 3. TOE -WOOD SHALL BE INSTALLED IN ACCORDANCE WITH DETAIL CIR-02, PROTRUDING FROM THE KEYWAY SECTION. OTHER THAN THIS KEYWAY SECTION. NO TOE -WOOD SHALL BE INSTALLED ELSEWHERE WITHIN THIS SECTION OF OVERLAPPING TREATMENTS. 4. SOME CHANNEL CROSS SECTIONS WILL BE CONSTRICTED WITH EITHER STONE OR GRADING OPERATIONS TO MEET THE SPECIFICATIONS HEREIN (E.G. BW- BOTTOM WIDTH). 5. IF SOME PORTIONS OF THE CHANNELAPPEAR TO BE MORE NARROW THAN THE SPECIFICATION PROVIDED HEREIN, THE CHANNEL SHALL NOT BE WIDENED FROM ITS EXISTING STATE (I.E. THIS WORK WILL MAKE THE CHANNEL MORE NARROW IN SOME LOCATIONS, BUT IT WILL NOT MAKE IT WIDERATANY LOCATION). NORTH PACOLET RIVER North Carolina Sheet R-04 X17 -10 -O(o PROPOSED GRADE PRE-EXISTING GROUND SCALE 1'= IV TYPICAL SECTIONS—TREATMENT OVERLAP October 3, 2011 IF TREES ARE PRESENT LEAVE ROOT -ZONE UNDISTURBED Pu i 4 845 840 835 830 825 1+20 SYMBOL DESCRIPTION SPECIFICATION 1 - PH BENCH V:1 F--2% BENCH H: 10 FT GEOLIFTS COMPACTED FILL BOTTOM SPREAD 6' LAYER OF SANDY GRAVEL - SPREAD 9' LAYER OF CHINKING STONE 0+80 1+00 SCALE 1'= IV TYPICAL SECTIONS—TREATMENT OVERLAP October 3, 2011 IF TREES ARE PRESENT LEAVE ROOT -ZONE UNDISTURBED Pu i 4 845 840 835 830 825 1+20 SYMBOL DESCRIPTION SPECIFICATION BW BOTTOM WIDTH 35 FT BENCH 'BANKFULL' BENCH 10 FT SPREAD BOTTOM SPREAD 6 FT MINIMUM OF STONE TOE PH PEAK HEIGHT BOTTOM OF GEOLIFTS (1-3 FT) ROBINSON DESIGN ENGINEERS'" Land.Water. Ecology.