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Home My WebLink AboutHRSM#3_C3.4-DETAILS Lf) 00 PLAN VIEW � W NOTE: _ l ' SEEPAGE BED SHALL CONFORM TO ACHD STANDARD DRAWING BMP 20 m �O0 ams z SEE PLANS FOR LOCATIONS OF MONITORING WELLS, THIS DETAIL ONLY SHOWS THEM FOR m m m REFERENCE AND DISTANCE FROM TRENCH. WELL "A" MAY BE LOCATED ON EITHER END OF � z o (� SEEPAGE TRENCH AND SHALL BE LOCATED ON OPPOSITE SIDE OF THE STREET FROM SEEPAGE BED. m o m 0 00 50' LSEE TRENCH DATA TABLE - THIS SHEET 1 O cn MONITOR WELL 5' FROM END OF TRENCH J J Li .• • MONITORING PER ACHD SD-627 TO ACT AS MARKER LL � �L W Q• a 18" OUT TO a• a WELL "A" O w m °' SEEPAGE °' °' O MONITORING = BED #2 � ' 0 w W W WELL „B„ N o •a o 5' FT SOLID WALL cn J ol 0J z IN TRENCH J O O O O O O O O O O O O O O O O O O O mHQ CD7 O O O O O O O O O O O O O O O O O V �^V^1 o � N C7 18" PERFORATED PIPE. INSTALL SOLID CAP AT END OF O SEE DETAIL 4 THIS SHEET. PERFORATED PIPE z m Z J w cn J Zo Q N N / 1 L FG f 2559.80' FG t 2558.00' V CD LID TO BE FLUSH LID TO BE FLUSH u !^ 10 LF MIN. 18" SDR-35 WITH FINISHED _ I WITH FINISHED CD SAND/GREASE TRAP @ 0.00% SLOPE SURFACE. INSTALL I I SURFACE. INSTALL I LID AND/OR SDMH LID (NON-PERFORATED) TOP OF TRENCH TO BE A MINIMUM I _III-III- I I I I I Z 0 RISERS AS NEEDED ^ F7L � L_ RISERS AS NEEDEDF TO BE FLUSH WITH FROM S G TRAP OF 1.50 FOOT BELOW FINISHED GROUND, MONITORING WELL PER ISPWC AND ACHD PER ISPWC AND ACHD FINISH GRADE / TOP OF SIDEWALK AND CURB. (TYP) PER ACHD SD-627 STANDARD SD-617 STANDARD SD-617 . • v ENSURE WOVEN GEOTEXTILE AND SD-624. AND SD-624. � W FABRIC IS OVER TOP OF 2556.00' m 2554.00' ,. m NATIVE BACKFILL TOP OF TRENCH z a- TRENCH. NON WOVEN TO BE TOP BAF TOP BAF , 0 O O Li 11 INSTALLED N SIDES OF TRENCH a_ 0 Q C 0- •' 0- 2554.45' w O MIN 6" DRAIN ROCK SLOPE MIN. N o I 2556.50' n/ O TO BE OVER PIPE 12" INV. IN 12" INV. IN L.L O O O O O O O O O O O O O O O O CATCH BASIN #2 CATCH BASIN #6 O m O- e e e � o 0 0 0 � 1'-$" 1'-$" 2555.00' 2553.00' Li 18" INV. OUT 18" INV. OUTuj _ SEEPAGE BED #1 m SEE NOTE SEEPAGE BED #2 m SEE NOTE Q `D 'A' THIS 'A' THIS 2" DRAIN ROCK SHEET 2555.00' Li SHEET 2553.00' W 10 LF MIN. 18" SDR-35 *SEE NOTE BY TABLE FOR TRENCH #2 BOT BAF. BOT BAF. W 0 0.00% SLOPE DRAINAGE GEOTEXTILE TYPE 1 NON-WOVEN (NON-PERFORATED) SECTION I (ISPWC SECTION 2050). L�J FROM S/G TRAP SEE TRENCH ELEVATION TABLE FOR BOTTOM ON SIDES OF TRENCH cn OF BED AND BOTTOM OF SAND ELEVATIONS OVERLAP MINIMUM OF 12"' NOTES: NOTES: L� SAND AND GREASE TRAP MEASUREMENTS AND BAFFLE ELEVATIONS ARE BASED ON OLD CASTLE PRE CAST SAND AND GREASE TRAP MEASUREMENTS AND BAFFLE ELEVATIONS ARE BASED ON OLD CASTLE PRE CAST O O °O '1000 GAL 5.5 UNIVERSAL'. IF DIFFERENT TRAP IS USED, IT IS ADVISED THAT CONTRACTOR CONTACT ENGINEER '1000 GAL 5.5 UNIVERSAL'. IF DIFFERENT TRAP IS USED, IT IS ADVISED THAT CONTRACTOR CONTACT ENGINEER TO VERIFY BAFFLE ELEVATIONS. BAFFLE ELEVATION MUST BE VERIFIED IN RELATION TO INVERT "IN" AND INVERT TO VERIFY BAFFLE ELEVATIONS. BAFFLE ELEVATION MUST BE VERIFIED IN RELATION TO INVERT "IN" AND INVERT "OUT" PRIOR TO PLACEMENT OF LID ON SAND AND GREASE TRAP. IT IS ADVISED THAT CONTRACTOR CONTACT "OUT" PRIOR TO PLACEMENT OF LID ON SAND AND GREASE TRAP. IT IS ADVISED THAT CONTRACTOR CONTACT IF GROUNDWATER IS ENCOUNTERED THE CONTRACTOR SHALL NOTIFY ASTM C-33 FILTER SAND IN SURVEYOR IN ORDER TO VERIFY BAFFLE AND INVERT ELEVATIONS BEFORE LID IS PLACED. SURVEYOR IN ORDER TO VERIFY BAFFLE AND INVERT ELEVATIONS BEFORE LID IS PLACED. THE ENGINEER AS SOON AS POSSIBLE FOR REDESIGN OF THE SEEPAGE ACCORDANCE WITH ACHD BMP 04 BEDS TO PROVIDE THE 3'-0" MIN. CLEARANCE BETWEEN GROUNDWATER -"A" : STANDARD DISTANCE IS 1FT. MINIMUM DISTANCE IS 6". IF NEEDED, LOWER BAFFLE CAN BE CUT UP TO -"A" : STANDARD DISTANCE IS 1FT. MINIMUM DISTANCE IS 6". IF NEEDED, LOWER BAFFLE CAN BE CUT UP TO AND THE BOTTOM OF THE SEEPAGE BED. THE PORTION OF PIPE LYING IN DRAINAGE 6" IN ORDER TO MAKE ELEVATIONS WORK. IF LOWER BAFFLE NEEDS TO BE CUT, CONTACT ENGINEER OF 6" IN ORDER TO MAKE ELEVATIONS WORK. IF LOWER BAFFLE NEEDS TO BE CUT, CONTACT ENGINEER OF SAND MUST BE WRAPPED IN A DRAINAGE RECORD TO ENSURE LISTED INVERT ELEVATIONS ARE AGREEABLE. RECORD TO ENSURE LISTED INVERT ELEVATIONS ARE AGREEABLE. FOOT PLATE (TYP.) CONSTRUCT PROFILE VIEW GEOTEXTILE TYPE 1 (ISPWC SECTION 2050). 12" BELOW SEEPAGE FILTER SAND OBSERVATION WELL MUST EXTEND A MINIMUM 1-1000 GAL. SAND/GREASE TRAP #1 1-1000 GAL. SAND/GREASE TRAP #2 OF 1' BELOW BOTTOM OF THE SAND IN THE SEEPAGE BED. PER ACHD BMP-01 - NTS - PER ACHD BMP-01 - NTS - SLEEVES THROUGH ACHD SEEPAGE BEDS MUST BE PER DETAIL 7. CONTRACTOR TO HAVE PERCOLATION TESTS PERFORMED BY SOILS ENGINEER AND SEEPAGE BED SHALL CONFORM TO ACHD STANDARD DRAWING BMP 20 ACHD INSPECTION STAFF. IF THE PERCOLATION IS LESS THAN SPECIFIED BY THE SOILS REPORT AND ENGINEER, CONTRACTOR WILL NEED TO OVER EXCAVATE IN ACHD IS NOW INSTALLING ELECTRONIC MARKERS ON EACH CORNER OF THE ORDER TO ATTEMPT TO FIND BETTER MATERIAL. IF ROCK IS ENCOUNTERED, BLAST DRAINAGE FACILITY. CONTRACTORS TO COORDINATE WITH ACHD INSPECTION TO CREATE CRACKS IN ROCK FOR DRAINAGE TO OCCUR. IF NEITHER OPTION IS - FOR PLACEMENT OF THE MARKERS DURING CONSTRUCTION AND PRIOR TO AVAILABLE, ENGINEER MAY NEED TO REDESIGN THE SYSTEM TO ACHIEVE THE N REQUIRED CRITERIA. THE DESIGN PERCOLATION RATE USED FOR EACH BED CAN BE BACKFILLING. ACHD IS CURRENTLY SUPPLYING THE DEVICES. 0 FOUND IN THE BELOW TABLE. E O0 m 3 OJ o v o m W LI�J �S SEEPAGE BED /4 TO BE SEEPAGE TRENCH DETAIL GROUNDWATERPER THE UWAS AONLY TER MONITORING N EST PT #1 & #3 ATORT BY GEOTEK D15.8 &TED R15.36CH 6FEETT25 s mo III O CONSTRUCTED WITH 3/4" TO 2" ROCK WITH MINIMUM 50% SINGLE FRACTURED SCALE: NTS BELOW GROUND SURFACE RESPECTFULLY. ALL OTHER TEST PITS HAVE BEEN DRY ® ° .. Li Q Q FACE IN PLACE OF 2" DRAIN ROCK. DEPTHS OF 13.40 & 13.50 FEET BELOW GROUND SURFACE. REPORT BY GEOTEK 4" SDR-35 AREA DRAIN 90. DATED APRIL 5, 2024 INFILTRATION RATES VARIED ACROSS THE SITE. FROM LOT 21 LLLLLL LLLLLLLL 04 SEEPAGE TRENCH DATA TABLE EL SEEPAGE TRENCH APPROXIMATE LL LLLL ••� \A` FROM LOWEST FINISHED TOP OF ROCK TOP OF SAND BOTTOM OF SAND 100 YEAR DESIGN g L LLL Q• Ql W # DIMENSIONS WxDxL GROUND ELEVATION ELEVATION ELEVATION GROUND WATER VOLUME DESIGN PERC RATE O• m• , m 2 S\N # ELEV 8" ADS-N12 OUT TO :CAI CN 6P W 1 10' x 8' x 51' 2560.25 2558.25 2550.25 2548.75 DRY @ 2546.50 1698 2"/HR PRIVATE SEEPAGE BED #4 L,J3: • 0-' No. �k 2 10' x 10' x 142' 2557.75 2555.75 2545.75 2544.25 2542.40 5866 3"/HR 0 o , 3 12' x 10' x 63' 1 2556.00 1 2554.00 1 2544.00 1 2542.50 2540.25 3223 1 5.9"/HR 4 10' x 8' x 22' 2555.75 2553.75 2545.75 2544.25 2541.00 717 2"/HR 4" SDR-35 AREA DRAIN 1�p FROM LOT 24 3/4" PERFORATIONS IN VALLEY FLUSH FG t2556.15 OF CORRUGATED PIPE. 5 EACH WITH ASPHALT P�L P/L PROVIDE GRADE LID TO BE FLUSH 1.50% SLOPE 31'-6" RINGS AS NEEDED WITH FINISHED _ _y SLOPE VARIES COMMON DRIVE I IIII-III_ INS 4,5. TBC TBC 6" GRATED LID RIM ±2555.36' PAVEMENT SECTION SURFACE. INSTALL 11.00' 20'-0" _ _ cv 2' RISERS AS NEEDED 0 0 PER ISPWC AND ACHD , • z Y 8" CONCRETE FG ON LOTS SLOPE 2.00% MAX FG ON LOTS STANDARD SD-617 w 4.. AND SD-624. � 6' a 2552.40' m W N w LANDSCALLJ PE 3" ROLLED CURB AND GUTTER 4" SDR-35 AREA DRAIN INV. IN TOP BAF , °O I - - - - FROM LOT 21 = 2552.50' OC�PA/CTED a I� PER ISPWC AND ACHD oo n\ice\ SUPPLEMENTAL DRAWING SD-702. 2552.50' tt^� a w cV > 24' RIBBON CURB 7" SUBGRADE v J 4" 3/"MINUS GRAVEL ' / 0- V� Q� ) ) SEE DETAIL ON ALLEYS ASPHALT SECTION SHALL BE 12" INV. IN z Q z 0 0 \\ �� v j/1�/1�/�v^ 4( Q SHEET C3.4 TWO AND A HALF INCHES (2.5") THICK CATCH BASIN #7 Lei w o o o � i \ v 2551.40CD COMPACTED TO95%3DENSROAD MIX. - - - M m o 7rITY. 18" INV. OUT u' V M m SEEPAGE BED #3 m SEE NOTE m i LLJ COMPACT SUBGRADE TO 95% 8" ADS-N12 INV. OUT TO SEE TYPICAL ASPHALT SECTION DETAIL NATIVE MATERIAL COMPACTED 4" SDR-35 AREA DRAIN INV. IN PRIVATE SEEPAGE BED #4 = 2552.00' w SHEET v L;J TO 95% DENSITY. FROM LOT 24 = 2552.50' 4" 0 2552.00' Q w w BOT BAF. o v o o 8" & 18" PERFORATION � J _ J SCHEULE 24" CONCRETE RIBBON CURB 20FT COMMON DRIVEWAY LOT SECTION NOTES: SS\ONA( F�L �NTLS - - NTS - - NTS - SECTION VIEW G'i,L SAND AND GREASE TRAP MEASUREMENTS AND BAFFLE ELEVATIONS ARE BASED ON OLD CASTLE PRE CAST '1000 GAL 5.5 UNIVERSAL'. IF DIFFERENT TRAP IS USED, IT IS ADVISED THAT CONTRACTOR CONTACT ENGINEER TO VERIFY BAFFLE ELEVATIONS. BAFFLE ELEVATION MUST BE VERIFIED IN RELATION TO INVERT "IN" AND INVERT a OT APPROVED � OLDCASTLE PRECAST DB350 'OUT" PRIOR TO PLACEMENT OF LID ON SAND AND GREASE TRAP. IT IS ADVISED THAT CONTRACTOR CONTACT 06/26/25 OR APPROVED EQUAL SURVEYOR IN ORDER TO VERIFY BAFFLE AND INVERT ELEVATIONS BEFORE LID IS PLACED. F R CONSTRUCTI N -"A" : STANDARD DISTANCE IS 1FT. MINIMUM DISTANCE IS 6". IF NEEDED, LOWER BAFFLE CAN BE CUT UP TO d'� �O 6" IN ORDER TO MAKE ELEVATIONS WORK. IF LOWER BAFFLE NEEDS TO BE CUT, CONTACT ENGINEER OF TE OF\�P RECORD TO ENSURE LISTED INVERT ELEVATIONS ARE AGREEABLE. 1 - 350 GAL. SAND/GREASE TRAP #4 1-1000 GAL. SAND/GREASE TRAP #3 SHEET - NTS - PER ACHD BMP-01 - NTS C3 .4