ROOTWAD LOG (15' LONG) TRENCH WALL BACKFILL ROOTWAD LOG (15' LONG) GRAVEL FILL BEHIND RIPRAP 4'Î 4'Î NOTES:

Transcription

1 TRENCH WLL INITIL FILL TO HOLD LOG EXISTING CREEK BOTTOM WTER SURFCE (VRIBLE) ROOTWD LOG (5' LONG) GRVEL FILL BEHIND RIPRP 'Î 2'Î EXISTING CREEK BOTTOM 4'Î TOE RIPRP (2 INCH) W/ 6 INCH CLSS FILTER MTERIL. ROOTWD INSTLLTION EXISTING CONDITION STEP PLCE ROOTWD ND INITIL FILL OVER LOG stahrj 2/2/207 :46:20 M M:\DCS\Projects\TRN\0048\900-CD\02-SHEETS\H\Jam es-stream Stabilization\BOCO-Jam es_stdet0.dgn TRENCH WLL GRVEL FILL BEHIND RIPRP 'Î 'Î 4'Î STEP PLCE TOE RIPRP 4'Î STEP 2 EXISTING CREEK BOTTOM TOE RIPRP (2 INCH) W/ 6 INCH CLSS FILTER MTERIL. EXISTING CREEK BOTTOM TOE RIPRP (2 INCH) W/ 6 INCH CLSS FILTER MTERIL. PLCE GRVEL BEHIND TOE RIPRP ND EXCVTE TRENCH FOR ROOTWD LOG D 2'Î 2'Î CLL UTILITY NOTIFICTION CENTER OF COLORDO CLL 2-BUSINESS DYS IN DVNCE BEFORE YOU DIG, GRDE, OR EXCVTE. 2. NOTES: ROOTWD LOG (5' LONG) TRENCH WLL BCKFILL ROOTWD LOG (5' LONG) TRENCH WLL GRVEL FILL BEHIND RIPRP GRVEL FILL BEHIND RIPRP PLCE EROSION BLNKET ON THE 2: SLOPE BCKFILL WILL BE DEQUTE TO COUNTER THE LOGS BOUYNCY 'Î INITIL FILL TO HOLD LOG 'Î 4'Î 4'Î STEP 4 TOE BOULDER FINISHED GRDE EXISTING CREEK BOTTOM TOE BOULDER TOE RIPRP (2 INCH) W/ 6 INCH CLSS FILTER MTERIL. DD RIPRP ND GRVEL TO TOP OF ROOTWD LOG, PLCE TOE BOULDER ON TOP 2 STEP 5 EXISTING CREEK BOTTOM 2'Î 2'Î TOE RIPRP (2 INCH) W/ 6 INCH CLSS FILTER MTERIL. PLCE REMINING FILL, SHPE BNK ND VEGETTE BOULDER COUNTY TRNSPORTTION DEPRTMENT CD: DTE: 0/27/207 JMES CNYON STREM DETILS ( OF 8) SHEET NO: 68 SEPT2C24 SEPT2C9

2 6" MX. ' DIMETER FOOTER BOULDER PLCE FOOTER ND TOE BOULDERS T 0.5: MIN. SLOPE ' REFILL WITH EXCVTED BCKFILL MTERIL ' DIMETER TOP BOULDER EXISTING GRDE PPROXIMTE LIMITS OF EXCVTION 0.5 MIN. FOOTER DEPTH.0' BELOW THLWEG ' ' DIMETER TOP BOULDER ' DIMETER FOOTER BOULDER BOULDER CLUSTER DETIL BOULDER CLUSTER PLN VIEW DETIL NOTES:. OFFSET FOOTER BOULDER IN THE DOWNSTREM DIRECTION, PERPENDICULR TO. stahrj 2/2/207 :46:2 M M:\DCS\Projects\TRN\0048\900-CD\02-SHEETS\H\Jam es-stream Stabilization\BOCO-Jam es_stdet02.dgn NOTES:. HEDER, FOOTER, ND SILL ROCKS TO BE BOULDERS. 2. LL VNE RMS TO BE BCKFILLED WITH NTIVE FILL.. FOOTER ND HEDER BOULDER MINIMUM DIMETER TO BE '. NTIVE BCKFILL (SEE D-D) POINT 2 GEOTEXTILE (DRINGE) CLSS FILTER FBRIC INSTLLED ON UPSTREM SIDE) VNE RM POINT POINT 0' MIN D BNKFULL CROSS TOE OF BNK D D C C PLN VIEW 2. POINT 4 SPCE BOULDERS MINIMUM OF BOULDER IN DIMOND OR TRINGLE PTTERN. OFFSET BOULDERS FROM LINE OR S DIRECTED BY FIELD ENGINEER. BNKFULL B B NGLE 24 5% MX SLOPE POINT 5 POINT 6 LLUVIL FILL LENGTH CLL UTILITY NOTIFICTION CENTER OF COLORDO CLL 2-BUSINESS DYS IN DVNCE BEFORE YOU DIG, GRDE, OR EXCVTE POINT 7 CHNNEL BED LLUVIL FILL TYPICL BOULDER CLUSTER STREM BED ELEVTION BNKFULL BSE ELEVTION (VRIES) CROSS BNKFULL BNKFULL NO GPS BETWEEN ROCKS SECTION - (UPSTREM VIEW) VNE RM 2%-5% SLOPE ROCK VNE SECTION B-B SILL ROCKS SHLL BE SET T 6"-8" BELOW BNKFULL ELEVTION TO PREVENT WTER FROM CUTTING ROUND STRUCTURE NTIVE BCKFILL TYPE GRNULR BEDDING MTERIL CHNNEL BED TYPE GRNULR BEDDING MTERIL GEOTEXTILE (DRINGE) CLSS FILTER FBRIC TO EXTEND 6" BELOW BOTTOM OF FOOTER ROCK KEY BOULDERS INTO STREM BOTTOM MINIMUM OF 6 FT ' MIN. BNKFULL ELEVTION SECTION D-D HEDER ROCK SECTION C-C (PROFILE VIEW) BOULDER COUNTY TRNSPORTTION DEPRTMENT CD: DTE: 0/27/207 DEPTH OF SCOUR POOL TO EQUL MX POOL DEPTH CHNNEL BED GEOTEXTILE (DRINGE) CLSS FILTER FBRIC BSE 5% SLOPE STRUCTURE STONE FILL BETWEEN BOULDERS LLUVIL FILL LLUVIL FILL SCOUR POOL JMES CNYON STREM DETILS (2 OF 8) SEPT2C24 SEPT2C9 SHEET NO: 69

3 OUTER SOIL WRP (COIR ND JUTE) SECURE SOIL WRP (COIR ND JUTE) WITH 2" HRDWOOD STKE FT. O.C. SEE PLN FOR ND TOE ELEVTIONS SEED ND INSTLL LIVE PLNTS BETWEEN LIFTS PER PLNTING PLN MEN NNUL WTER SURFCE INNER SOIL WRP (COIR ND JUTE) CONSTRUCT SOIL LIFT WITH NTIVE SOIL ND COMPOST 2" LIFTS KEY TRENCH FINL CHNNEL GRDE 6' TOE PROTECTION RIPRP (6 INCH) stahrj 2/2/207 :46:22 M M:\DCS\Projects\TRN\0048\900-CD\02-SHEETS\H\Jam es-stream Stabilization\BOCO-Jam es_stdet04.dgn SOIL LIFT NOTES: SOIL LIFT DETIL TO BE PID FOR S SOIL WRP (COIR ND JUTE) T THE SQURE YRD UNIT OF MESUREMENT. TOPSOIL COMPCTED FILL WILL BE PID FOR UNDER SECTION 207. PLNTING TO BE PID FOR UNDER SECTION 24 PLNTINGS. COIR ROLL (2 INCH) TO BE PID FOR UNDER SECTION 208. PLCE SEED IN WRPS S THEY RE CONSTRUCTED (CONSULT WITH ECOLOGIST) EXCVTE S NEEDED TO PROVIDE RECOMMENDED OF WRP. D BCKFILL LIFT WITH ON-SITE, CLEN, WELL GRDED, SOIL MIXTURE. COMPCT BY 6" LIFTS TO 90% MXIMUM DRY DENSITY WITHIN % OF THE OPTIMUM MOISTURE CONTENT. USE TOPSOIL FOR THE TOP 6" OF THE LIFT. CLL UTILITY NOTIFICTION CENTER OF COLORDO CLL 2-BUSINESS DYS IN DVNCE BEFORE YOU DIG, GRDE, OR EXCVTE ' TO 5' t = 24" SOIL WRP FBRIC S SPECIFIED PLCE COIR ROLL (2 INCH) INSIDE SOIL WRP (COIR ND JUTE) ND STKE. WRPPED SOIL LIFT DETIL ' MIN. SEE M-208- FOR INSTLLTION ND STKING DETILS. LOW CHNNEL SOIL WRPPED LIFT LOW CHNNEL EXMPLE 2 DETIL BOTTOM WRP TO BE IMBEDDED BELOW INVERT OF LOW CHNNEL. WITH ECOLOGISTS. WITH EROSION MEN NNUL WTER SURFCE OVEREXCVTE TO PLCE SOIL WRPPED LIFTS. IN LOCTIONS WHERE TREE IS TO BE SVED, MINIMIZE EXCVTION TO VOID TREE ROOTS BY WORKING CLOSELY SPRED TOPSOIL ON TOPMOST LYER ND COVER DISTURBED RE STKE LIFTS PPROXIMTELY ' O.C. W/ 8" LONG WOOD STKES SEE SOIL WRP (COIR ND JUTE) BOULDER COUNTY TRNSPORTTION DEPRTMENT CD: DTE: 0/27/207 JMES CNYON STREM DETILS ( OF 8) SHEET NO: 70 SEPT2C24 SEPT2C9

4 (POSITION VRIES) NOTE:. SEE STREM DETILS (5 OF 8) FOR TYPICL LOG BNK TRETMENT ND TYPICL LOG SPLIT INSTLLTION. POOL (PPROX.) POOL (PPROX.) BOULDERS (POSITION VRIES) TOE OF BNK TOE OF BNK stahrj 2/2/207 :46:24 M M:\DCS\Projects\TRN\0048\900-CD\02-SHEETS\H\Jam es-stream Stabilization\BOCO-Jam es_stdet05.dgn EXISTING STREM SUBSTRTE MEN NNUL WTER SURFCE TYPICL LOG BNK REVETMENT NTIVE LLUVIUM ROCK TOE PROTECTION: CONSTRUCT ROCK TOE WITH ONSITE BOULDERS ND/OR RIPRP (2 INCH), PCK BOULDERS WITH CLEN NTIVE GRVEL ND COBBLE D END PPROX. 2FT BELOW CHNNEL INVERT MTTING (REFER TO REVEGETTION PLN) SETBCK RIPRP (TYP.) CLL UTILITY NOTIFICTION CENTER OF COLORDO CLL 2-BUSINESS DYS IN DVNCE BEFORE YOU DIG, GRDE, OR EXCVTE EXISTING SUBSTRTE 6" TOPSOIL. IF CONTINER PLNTS RE SPECIFIED MORE TOPSOIL DEPTH WILL BE REQUIRED. FINISHED GRDE SETBCK RIPRP: CONSTRUCT RIPRP WLL WITH ONSITE RIPRP (2 INCH) BCKFILL WITH NTIVE LLUVIUM TO FINISH GRDE. REFER TO CROSS SECTION FOR PLCEMENT ND TOE DOWN DEPTH. FILL VOIDS WITH SMLLER BOULDERS, COBBLES, ND GRVELS STCK TWO 42" MINIMUM DIMETER BOULDERS T TOE OF EMBNKMENT STREM BED TYPICL LOG SPLIT TRETMENT BOULDERS (6"-42") SHOULD BE STCKED T : MXIMUM SLOPE FOOTER NGULR MTERIL EXISTING BOULDER 48", BOULDER TOE PROTECTION BOULDER COUNTY TRNSPORTTION DEPRTMENT CD: DTE: 0/27/207 EMBNKMENT JMES CNYON STREM DETILS (4 OF 8) SEPT2C24 SEPT2C9 SHEET NO: 7

5 REFER TO 40 SCLE PLN SHEETS ND PLNTING PLNS FOR DDITIONL BNK PROTECTION MESURES. SEE NOTE ND 4 SEE NOTE NOTES: EXCVTE TOE LOG TRENCHES PERPENDICULR TO PRLLEL WITH CHNNEL BEND BSED ON DIRECTION OF FLOOD. EXCVTE INTO BNK ND BELOW CHNNEL BED SURFCE TO MXIMUM PREDICTED SCOUR DEPTH. 2. EXCVTE TORSION LOG TRENCHES 5 ND 45 DEGREES (DEPENDENT ON LOCTION IN THE BEND) TO FLOOD ND TO BED SURFCE ELEVTION SO THE ROOT FN FCES INTO FLOOD. TORSION LOGS MY NEED TO BE LYERED (LOWER ND UPPER) DEPENDING ON BNK HEIGHT. HIGH BNK (5FT OR MORE) WILL REQUIRE 2 LYERS OF TORSION LOGS TO PIN DOWN THE FCE LOGS.. PLCE WEVE DDITIONL TREES, LOGS, LRGE BOULDERS, SLSH OR ROOT-WDS IN PEX OF STRUCTURE. 4. PLCE MPLE SLSH ND SMLL WOODY DEBRIS ON THE UPSTREM BNK INTERFCE OF THE STRUCTURE. 5. DD BLLST LOGS S REQUIRED TO PREVENT BUOYNCY T DESIGN. POOL HED MXIMUM POOL DEPTH LOG REVETMENT BNK STBILIZTION. MINIMUM ONE BOULDER PER 2 LOGS. SEE NOTE 2 stahrj 2/2/207 :46:25 M M:\DCS\Projects\TRN\0048\900-CD\02-SHEETS\H\Jam es-stream Stabilization\BOCO-Jam es_stdet06.dgn LOG REVETMENT (PLN) D REFER TO 40 SCLE PLN SHEETS ND PLNTING PLNS FOR DDITIONL BNK PROTECTION MESURES. CLL UTILITY NOTIFICTION CENTER OF COLORDO CLL 2-BUSINESS DYS IN DVNCE BEFORE YOU DIG, GRDE, OR EXCVTE ' Î ESTIMTED SCOUR DEPTH SECTION - NORML BNKFUL (PEX) TOE LOG BOULDER COUNTY TRNSPORTTION DEPRTMENT CD: DTE: 0/27/207 TERRCE TORSION LOG SLSH (FOREST DEBRIS) JMES CNYON STREM DETILS (5 OF 8) SEPT2C24 SEPT2C9 SHEET NO: 72

6 NOTES:. 2. FINL RIFFLE DIMENSIONS TO BE FIELD DETERMINED UNDER THE DIRECTION OF THE ENGINEER. NTIVE ROCK MY BE USED FOR RIFFLE ROCK MTERIL IN LIEU OF RIPRP 9" ND RIPRP 8". IF INSUFFICIENT NTIVE ROCK, THEN CONTRCTOR SHLL USE RIPRP 9" ND RIPRP 8" FOR RIFFLE CONSTRUCTION. POINT RIFFLE CREST ELEV. SHLL BE 6" BOVE EXISTING BED ELEV. RMP SLOPE VRIES DOWNSTREM RUN (MTCH RIFFLE SLOPE VRIES 2-5% TOP CREST ' MIN. 0-20% MTCH EXISTING GRDE PROPOSED THLWEG (S DIRECTED BY ENGINEER EXISTING GRDE) PLCE BOULDER CLUSTERS IN THE FIELD) EXISTING GRDE BOULDER CLUSTER (SEE DETIL) EXISTING CHNNEL BED PLCE WITH DIRECTION OF FIELD ENGINEER. EXCVTE BED ND PLCE 2' MIN. THICK LYER OF RIFFLE ROCK IN 2 LIFTS CREST RIFFLE BSE RMP POOL LENGTH VRIES RIFFLE HEEL stahrj 2/2/207 :46:26 M M:\DCS\Projects\TRN\0048\900-CD\02-SHEETS\H\Jam es-stream Stabilization\BOCO-Jam es_stdet08.dgn CONSTRUCT RIFFLE B TYPICL HRDENED RIFFLE D B TOE OF BNK PLCE LLUVIUM MTERIL KEY RIFFLE CREST RIPRP INTO MIN. OF 5' NGLE S OF CREST 5 TO 20 DEG. DOWNSTREM (TYP.) CONSTRUCT CREST CONSTRUCT RMP PLCE LLUVIUM MTERIL CLL UTILITY NOTIFICTION CENTER OF COLORDO CLL 2-BUSINESS DYS IN DVNCE BEFORE YOU DIG, GRDE, OR EXCVTE THE RIFFLE ND RMP MTERIL WILL BE LLUVIUM WITH RIPRP (9 INCH) BCKFILL 8" OF NTIVE SOIL ND PLNT BOVE RIFFLE CREST BOULDERS (MX) CROSS SECTION - CROSS SECTION B-B THLWEG OF RIFFLE CREST SHLL BE ' BOVE EXISTING BED ELEV. (REFER TO CHNNEL X-SECT SHEETS FOR POSITION OF THLWEG) DEPTH OF CREST IS ' BELOW EXISTING GRDE TRNSITION TO NTIVE SOIL T BNKFULL ELEVTION BOULDER COUNTY TRNSPORTTION DEPRTMENT CD: DTE: 0/27/207 KEY RIFFLE CREST RIPRP INTO HIGH BNK MIN. OF 5' CREST MTERIL WILL BE LLUVIUM MTERIL RIPRP (8 INCH) PLCE RIFFLE CREST RIPRP TO MIN. DEPTH OF ' JMES CNYON STREM DETILS (6 OF 8) SEPT2C24 SEPT2C9 SHEET NO: 7

7 LOW NOTES: NTIVE BCKFILL (SEE D-D) POINT 2 POINT VNE RM POINT D BNKFULL POINT 4 E D C BNKFULL B B E POINT 5 NGLE 20-0 LENGTH POINT 6 POINT 7 CHNNEL BED PROPOSED GRDE TYPE GRNULR BEDDING MTERIL (2 INCH) KEY BOULDERS INTO STREM BOTTOM MINIMUM OF 6 FT STRUCTURE STONE FILL BETWEEN BOULDERS HEDER ROCK (6" BOULDER) L= 5' (6" SCOUR POOL DEPTH), OR L= 0' (2" SCOUR POOL DEPTH) POINT 4 5% SLOPE 2.5' MX. (6"-48" BOULDER) SCOUR POOL BSE 6" MIN. 2" MX. DEPTH OF SCOUR POOL TO EQUL MX POOL DEPTH LOCL ROCK FILL S DIRECTED BY ENGINEER. HEDER, FOOTER, ND SILL ROCKS TO BE EXISTING BOULDERS, ND EXISTING ROCKS. 2. OTHER CONTRCT BOULDER ITEMS MY BE USED IN CCORDNCE WITH DETILS SHOWN IN THESE PLNS ND PPROVED BY THE ENGINEER.. LL VNE RMS TO BE BCKFILLED WITH NTIVE FILL. 4. FOOTER ND HEDER BOULDER MINIMUM DIMETER TO BE '. 5. SEE PLNS FOR POINT INFORMTION. C SECTION C-C (PROFILE VIEW) 0' MIN TOE OF BNK PLN VIEW LOCL ROCK FILL S DIRECTED BY ENGINEER BNKFULL ELEVTION stahrj 2/2/207 :46:28 M M:\DCS\Projects\TRN\0048\900-CD\02-SHEETS\H\Jam es-stream Stabilization\BOCO-Jam es_stdet09.dgn POINT 5 0' MIN. LOW 0' MIN. POINT 2 POINT LOCL ROCK FILL S DIRECTED BY ENGINEER BNKFULL PROPOSED GRDE SLOPE, SEE PLNS SECTION B-B CHNNEL BED BSE ELEVTION (VRIES) CHNNEL BED BNKFULL PROPOSED GRDE SECTION - (UPSTREM VIEW) VNE RM D BNKFULL POINT 6 POINT 7 CLL UTILITY NOTIFICTION CENTER OF COLORDO CLL 2-BUSINESS DYS IN DVNCE BEFORE YOU DIG, GRDE, OR EXCVTE TYPE GRNULR BEDDING MTERIL (2 INCH) SILL ROCKS SHLL BE SET T 6"-8" BELOW BNKFULL ELEVTION TO PREVENT WTER FROM CUTTING ROUND STRUCTURE NTIVE BCKFILL TYPE GRNULR BEDDING MTERIL (2 INCH) POINT MODIFY EXISTING STREM STRUCTURE (FOR INFORMTION ONLY) BSE ELEVTION (VRIES) 2" MIN. SECTION D-D PROPOSED GRDE SECTION E-E (DOWNSTREM VIEW) BOULDER COUNTY TRNSPORTTION DEPRTMENT CD: DTE: 0/27/207 LOCL ROCK FILL S DIRECTED BY ENGINEER CHNNEL BED HEDER ROCK POINT 5 TYPE GRNULR BEDDING MTERIL (2 INCH) PROPOSED GRDE JMES CNYON STREM DETILS (7 OF 8) SEPT2C24 SEPT2C9 SHEET NO: 74

8 R RIFFLE MTERIL ROCK CUT OFF SILL CHNNEL BSE ELEVTION (VRIES) ROCK CUT OFF SILL TOP BOULDER (6") EMBEDDED MINIMUM OF 24" INTO STREM BED NOTCH FOR LOW POINT POINT SPLSH BOULDER (48") KEY RIBS INTO BNK MINIMUM OF ONE ROCK PST CHNNEL LIMITS FOOTER BOULDER (48") stahrj 2/2/207 :46:29 M M:\DCS\Projects\TRN\0048\900-CD\02-SHEETS\H\Jam es-stream Stabilization\BOCO-Jam es_stdet0.dgn POINT RIFFLE MTERIL MIN 6" MX 2" PLN VIEW VRIES SEE PLN TOP BOULDER (6") BOULDER CSCDE - GRDE FINISHED GRDE TO SPLSH BOULDER D PROFILE VIEW TOP BOULDER (6") SEE PROFILE FOR ELEVTION CLL UTILITY NOTIFICTION CENTER OF COLORDO CLL 2-BUSINESS DYS IN DVNCE BEFORE YOU DIG, GRDE, OR EXCVTE FOOTER BOULDER (48") BSE ELEVTION (VRIES) SPLSH BOULDER (48") EXCVTED POOL (TYP.) LNM LNM SECTION - BOULDER COUNTY TRNSPORTTION DEPRTMENT CD: DTE: 0/27/207 JMES CNYON STREM DETILS (8 OF 8) SHEET NO: 75 SEPT2C24 SEPT2C9

9 76

10 77

11 78

12 79

13 80