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HomeMy WebLinkAboutWastewater Treatment Plant Outfall and Bank Stabilization Improvements 3- m0� w TmU_Z a � �3 LyyJ N FZW� jU JO O WwW� OV CITY OF BOZEMAN WASTEWATER TREATMENT PLANT woo OUTFALL AND BANK STABILIZATION IMPROVEMENTS �Q NWN W J� o = o ?1 ' o RECORD DRAWINGS �T=; m W U�a Z o~��o Z Tim, • 3 O U 6 0 m 0 SHEET INDEX o a • z a z _ 1 OF 8 TITLE 2 OF 8 SITE PLAN w E-- a 3 OF 8 AREA "1" PLAN & DETAILS 4 OF 8 MISCELLANEOUS DETAILS UJI Q 5 OF 8 AREA "2" PLAN & DETAILS w cn 6 OF 8 AREA "2" PHOTO DETAILS • Z APPROX. SCALE 1-1000' :• 7 OF 8 NEW OUTFALL PIPE - PLAN & PROFILE Z w a N � O w 8 OF 8 OUTFALL PIPE DETAILS & PHOTOS �p o VICINITY MAP m PROJECT NO_ Os17.032 SHEET NUMBER I OF 8 DRAWING NUMBER 1 ' V I 'I ww �.,,,� SCHEDULE 3 OU�FP �, "'3 t / f� 10 o 'Y p f , , il" .. •w •�: �'� s' �� � .ice. ^>E' �•✓�y, � y "� ����yy1•'�s AREA "I•• e! �■w , ��• AREA "2' SCHEDULE 1 't 1 SCHEDULE 2 Y CF — GENERAL ACCESS ROUTE BOZEMAN _a� ; ` M ,I `'t • SUBJECT TO CHANGE DUE TO WWTP s PLANT OPERATIONS AND SITE ► • 'pO CONSTRUCTION.40 ' N. f 1 .ok-A- WILLOW BUNDLE (A.B.) w V. Q 9' • N V. y 4 o� �o i BIODEG BL ABRIC a W u s. �• SEE DETAIL WILLOW PLANTINGS Foo $ q 4 EXISTING BANK SEE CONSTRUCTION NOTESOk 4P- " i ISO t. 3, ymo \� CK Op -4.5-6' V3 5ES5> ENS « .:.. " SEEDED TOPSOIL WITH SIP- BIODEGRADABLE NORMAL HIGHWATFF MARK m • FABRIC FROM TOP OF tiF Z BANK TO HIGH 1' LOW NATER ON g 4 CaLf WATER MARK 9/28 01 Ln / COBBLE ®2:1 2.5' / ' S KEYED NTO FILTER IC "`DING \ MAX 3 0 GRAVEL EXIST. SOIL ANGULAR COBBLES j 6" MAX. ` a � PLACE TOPSOIL �10' 3'pvt a . •� AROUND WILLOW • • • BUNDLE LAY BANK BACK wFoim AT 1.5:1 SLOPE 3' 4" Wig �R. 6. TOE PROTECTION: Is STABILIZATION drCLASS 2 RIP RAPGALLATI , FILTER FABRIC s 3' THICK KEYED INTO EXIST. SOIL I=> o BANK STABILIZATION AREA 1 a 3 TYPICAL SECTION O d R Construction Notes: NTS o� 1) Dewater site as needed for construction (flow diversion). Site clearing and grubbing. 2) Existing bank and toe to be excavated for placement of riprap. Bank shall be laid back at 1.5:1 slope. M 3 lac be din rave_as o n in the drawings r fabric to be anchored in so;' above pep-of-rip. -��-�VV � C ' 1 n m g and anchored . cho ed :n the strearn channel. /'` i 4 shall S yyaa O U Q � m O AREA "1" PLAN VIEW Three 5)ewe rows of willow bundles shall be placed along the bank as shown in the drawings. a PHOTO 1-1 (TAKEN 6-5-01) a SCALE: 1"=60' (PRIOR TO REDUCTION) - - _. __ The rows shall be separated approximately 3 feet along the backslope. Willows shall be Z < `• spaced out at 10 feet in each row. Rows shall be offset, resulting in a 6-foot spacing a o between willows along the bank. o 6) Large clump of 5-6'tall willow cuttings to be harvested and bundled by the contractor. z N Willow clump shall placed such that bottom is below the filter fabric and at or below the "low � m water" elevation. a 7)A slit shall be cut in filter fabric to allow placement of willow bundle beneath the fabric. Q Y 8) Topsoil shall be placed around willow clump and lightly compacted. ~ a 9 Ri ra shall be I La °° GENERAL NOTES: ) Rip rap paced from toe up to the proposed top of riprap section, being careful to ,,, a La © avoid willow clumps. Cobbles shall be placed in the same manner as riprap. a > a O TOP ELEVATION AND EXTENT OF RIP RAP TO < 5 BE STAKED IN THE FIELD BY THE EGINEER. 10) Soil shall be placed from top edge Of Cobbled riprap section at 3:1 slope to catch point 3:: LS O2 USE BANK STABILIZATION TYPICAL SECTION on existing ground. N FOR CONSTRUCTION. SEE DET. - = 11) Soil shall be seeded and fertilized, biodegradable fabric shall be placed over seeded � Q soil and staked as shown in detail. v Z DETAIL NOTES (SEE PHOTO): -- 12 Willow clump hall be cut off at 2' above finished q round surface. a Q O3 DOWNSTREAM EXTENT OF BANK PROTECTION 1 WLJ 2 RIP RAP AREA. I - 14) Remove dewatenng system. store channel o om to ongional condition. o N ®CONCRETE WASTE PILE HAS ALREADY 15 Contractor shall call One-Call Locate prior to start of construction to locate underground 00 m BEEN REMOVED. r- utilities. Contractor shall also be responsible for protection of all utilities. g PROJECT NO. 0417.032 SHEET NUMBER 30F 8 DRAWING NUMBER 3 - f -Q wo !-YwK >UU 40 > �QEQ �Q 30 cm vi w"(5cm-12.5m) :¢ N� W 1'• 1� ® (15 cm) C2 ,u.... 2 u, m e 3/4' CHAMFER, TYP. T.O.W. _ 458 54 (A.8 4 cO SEEDED TOPSOIL N z # - � 0 (�5em HORIZONTAL, TYP. c AT PIPE OPENING, �\/� O PROVIDE (2) #5x7'-O" ADD'L 6" (A.B.) VERTICAL BARS, EACH #5 ® 'I-2 .C., VERTICAL, SIDE OF OPNG. CTRD. IN WALL, TYP. Now (1) #5 HOOP AROUND OPNG. w�Nd - - 8., N HOLE PENETRATION FOR 36" DOUBLE WALL HDPE PIPE. s�; r INSTALL APPROVED WATER STOP As si _ � 36" DOUBLE WALL HDPE .w-; s �BIODEGRABLE FABRIC INSTALLATION DETAIL INLET — '—'=a � sa1tE. W\ FLARED END SECTION W 3,5 14 O d !R 1. PREPARE SOIL BEFORE INSTALLING BLANKETS, INCLUDING ANY NECESSARY j/\j\\/�\\; AT PIPE OPE ING �� DE,APPLICATION OF LIME, FERTILIZER, AND SEED. NOTE: WHEN USING CELL-O-SEED DO APPROXIMATE G DE ��\\���fi,� (2) #5 x �O" ORIZ. NOT SEED PREPARED AREA. CELL-O-SEED MUST BE INSTALLED WITH PAPER SIDE LINE OF ITCH BARS, TYP. T'- B OF OPNG. AND DOWN. mo z (2) #5 x 0" ADD'L VERT. BARS, 2. BEGIN AT THE TOP OF THE SLOPE BY ANCHORING THE BLANKET IN A 6" (15cm) vN EACH SIDE OF OPNG. DEEP X 6" (15cm) WIDE TRENCH WITH APPROXIMATELY 12" (30cm) OF BLANKET 1,_6„ L G EXTENDED BEYOND THE UP-SLOPE PORTION OF THE TRENCH. ANCHOR THE ° 1 1/2" CLR COVER # 10•5 N DOWELS 6" O.C., Y W� BLANKET WITH A ROW OF STAKES APPROXIMATELY 12" (30cm) APART IN THE T. CTRD IN WALL m ¢ BOTTOM OF THE TRENCH. BACKFILL AND COMPACT THE TRENCH AFTER STAKING. . .F. # ; rt e o u APPLY SEED TO COMPACTED SOIL AND FOLD REMAINING 12" (30cm) PORTION OF 4588.4 5 ® 12" O.C. m BLANKET BACK OVER SEED AND COMPACTED SOIL. SECURE BLANKET OVER 4585.44 (A.B.)= a a TRANSVERSE, T& B COMPACTED SOIL WITH A ROW OF STAKES SPACED APPROXIMATELY 12" (30cm) a APART ACROSS THE WIDTH OF THE BLANKET. • ° • n • d • ~ z z Z 3. ROLL THE BLANKETS (A.) DOWN OR (B.) HORIZONTALLY ACROSS THE SLOPE. SLOPEETSBLAWILL NKETSUNROLL WILL UWITH NROLLAPPROPRIATE APPROPRIATE ROLL SIDETHE AGAINST THE DOWN SOIL THE ��\��\ \\j\\%\\/�\��\\ /\/\/ 3" CLR COVER Z a o SURFACE. ALL BLANKETS MUST BE SECURELY FASTENED TO SOIL SURFACE BY \ \� ���\�\\ w - PLACING STAKES IN APPROPRIATE LOCATIONS AS SHOWN IN THE STAPLE PATTERN (4) #5 LONGITUDINAL NATIVE GRAVEL OR 1'-O" (MIN.) m ul BARS, T & B, CONT.o GUIDE. WHEN USING OPTIONAL DOT SYSTEM STAKES SHOULD BE PLACED SUBGRADE COARSE IN ACCORDANCE w Ln THROUGH EACH OF THE COLORED DOTS CORRESPONDING TO THE APPROPRIATE 4'-0" W/ MPW SECTION 02234, Y w STAPLE PATTERN. COMPACTED TO 97% z CAST IN PLACE CONCRETE IN ACCORDANCE W/MDW CLASS ASTM D-698 m � 0 4. THE EDGES OF PARALLEL BLANKETS MUST BE STAPLED WITH APPROXIMATELY W 0 M-3000, TYP. ® FOOTING uj z a 2"-5" (5cm-12.5cm) OVERLAP DEPENDING ON BLANKET TYPE. TO ENSURE Q > g AND WALL n PROPER SEAM ALIGNMENT, PLACE THE EDGE OF THE OVERLAPPING BLANKET _:i�: J (BLANKET BEING INSTALLED ON TOP) EVEN WITH THE COLORED SEAM STITCH ON z uj THE PREVIOUSLY INSTALLED BLANKET. `- ul � HEADWALL DETAIL Q � m 5. CONSECUTIVE BLANKETS SPLICED DOWN THE SLOPE MUST BE PLACED END OVER END (SHINGLE STYLE) WITH AN APPROXIMATE 3" (7.5cm) OVERLAP. STAKE 7,8 SCALE; NTS Q V)) THROUGH OVERLAPPED AREA, APPROXIMATELY 12" (30cm) APART ACROSS ENTIRE :2 w z w N BLANKET WIDTH. N w NOTE: 00 0 0 " r *IN LOOSE SOIL CONDITIONS, THE USE OF STAKE LENGTHS GREATER THAN 6" PROJECT WJ. (15cm) MAY BE NECESSARY TO PROPERLY SECURE THE BLANKETS. 0417.032 SHEET NUMBED O 4 OF B DRAWING NUMBER O S •� �Pj 15'v Z:1A Zw BIODEGRADABLE FABRIC 4 a �& �c� WILLOW PLANTINGS aawz Tz SEE DETAIL �. XL,, SEE CONSTRUCTION NOTES wo'0 �< EXISTING BANKo%3n��so� '^Ww wwo 44 •1 qpa.:ENC\ t Ilk 1b EXTEND 1.5:1 O 10 —7-9' SLOPE TO CATCH ' —11' AT THALWEG m �• POINT w 06 Z 1' f \ NORMAL HIGH o = FILTER FABRIC SWATER MARK z o ♦ F KEYED INTO 1 LOW WATER ON J • EXIST. SOIL y9/28/01 —5' PLACE TOPSOIL FILTER FABRIC N AROUND WILLOW �� KEYED INTO t FN ' BUNDLE CHANNEL zNaN 41 $ • ; • LAY BANK BACK AT 14.5' $ • . . 1.5:1 SLOPEAll, 40 c> 3' z r U1 CLASS 2 RIP RAP, PHOTO 2-2 3' THICK @ 1.5:1 GALLATIN 0 SLOPE �/ 3 Q PHOTOoAft , STABILIZATION J 40 BANK STABLIZATION AREA "2" 2-3 •TO 2-4 BEDDING GRAVEL TYPICAL SECTION 2-3 Construction Notes: NTS AREA "'GALLATII AREA 1) Dewater site as needed for construction (Flow Diversion). Site clearing and grubbing. 2) Existing bank and toe to be excavated for placement of riprap. Bank shall be laid back at 1.5:1 slope. 3) Bedding gravel shall be placed as shown on the drawings. m 4) Filter fabric to be anchored in soil above top of riprap section, then rolled down the bank and a anchored in the stream channel. Contractor shall submit shop drawings of anchor trenches. I-- 5)Two rows of willow bundles shall be placed along the bank as shown in the drawings. The rows a o shall be separated approximately 1.5 feet along the backslope. Willows shall be spaced out at 10 a- o M feet in each row. Rows shall be offset, resulting in a 5-foot spacing between willows along the bank. z a 6) Large clump of 5-6' tall willow cuttings to be harvested and bundled by the contractor. Willow clump shall placed such that bottom is below the filter fabric and at or below the "low water" a elevation. � Y 7)A slit shall be cut in filter fabric to allow placement of willow bundle beneath the fabric. a N 8)Topsoil shall be placed around willow clump and lightly compacted. w m W 0 # 9) Riprap shall be placed from toe up to the proposed top of riprap section, being careful to avoid I-- a s Willow clumps. 10) Soil shall be placed from top edge of riprap section at 1.5:1 slope to catch point on existing Ld Cn g NOTES: ground. a ? � AREA "2" PLAN VIEW 11) Soil shall be seeded and fertilized, biodegradable fabric shall be placed over seeded soil and 10 TOP ELEVATION AND EXTENT OF RIP RAP TO Z r J BE STAKED IN THE FIELD BY THE ENGINEER. staked as shown In detail � Q N SCALE: 1"=60' (PRIOR TO REDUCTION) 4 Q O USE BANK STABILIZATION AREA -2- DETAIL 0 12) Willow clump shall be cut off at 2' above finished ground surface. w Ell a TYPICAL SECTION FOR CONSTRUCTION. 5 N M U 13) Filter fabric also shall be anchored in soil at upstream and downstream ends of the riprap o N section. M 14) Remove dewatering system, restore channel bottom to origional condition. PROJECT N0. 15) Contractor shall call One-Call Locate prior to start of construction to locate underground utilities. 0417.032 Contractor shall be responsible for protection of all utilities. SHEET NUMBER 50F8 16) Removal of concrete and remains of timber jetty, to be paid for under Item 204 Site Clearing and DRAWING NUMBER Grubbing. See photos 2-1, 2-2, 2-3, and 2-4. 5 PHOTO 2-1 (TAKEN 6-5-01) PHOTO 2-2 (TAKEN 6-5-01) moo 1.r - >WZU _3 .............. Ym� V�wr w i IT z 1 1aQ o U m O h ,r P •, W�o� m a z NOTES: z; NOTES: _ OC,cj �O EXISTING FENCE TO REMAIN, OR TO BE REPLACED IN EXISTING LOCATION UPON COMPLETION OF PROJECT. O O PIERS TO BE REMOVED. ALL CONCRETE SLABS TO BE REMOVED (APPROX. 90 LF ALONG BANK.) ALL CONCRETE MATERIAL TO BE REMOVED. CONCRETE TO BE REMOVED FROM EXISTING JETTY {�1. ROCK TO BE INCORPORATED IN NEW BANK STABILIZATION AT THAT LOCATION. O 3O UPSTREAM EXTENT OF AREA 2 RIP-RAP � s N PHOTO 2-3 (TAKEN 6-5-01) 7T PHOTO 2-4 (TAKEN 6-5-01Gi r+ I � I d a d U Q Q ✓D O z � z Z � Q z J O CL Z O Z a W N m � m Q Lai_I Cn ~ Z J Q N i 1� of m W W Lj a > � o 1 W z U) g Q a z � aN � Wz NOTES: IWv NOTES: O N m o 1 CONCRETE TO BE REMOVED FROM EXISTING JETTY #2. ROCK TO BE INCORPORATED IN RIPRAP SECTION. m O AT THAT LOCATION.CONCRETE,, PIERS AND TIMBERS TO BE REMOVED. ROCK TO BE INCORPORATED INTO BANK STABILIZATION 2O PIERS TO BE REMOVED. JETTY #1 PROJECT No. O DOWNSTREAM EXTENT OF AREA 2 RIPRAP O JETTY #2. CONCRETE AND PIERS TO BE REMOVED. ROCK MAY BE INCORPORATED INTO RIPRAP. 0417.032 SHEET NUMBER B OF DRAWING NUMBER 6 TBM 142 30 mo a �m�3 wJ = aWNz 50 > vi��rc z¢ iw�� rc� 'izN a j dl • A im 'o a END OF PIPE haQ iElyG\`r OR o > EAST m STA BLGl f z ��:. .fix • r • i 0 EXISTING FIENCELINE ! -DTI • o v", -BUILT AUGNMENT P a w 1 • OF `! zW[QQ[u�i m w u N r OF EXISTING PIPE g 5�R PHOTO 3-2 • •_0F REMOVE • ACROSS OUTFALL • G�� am OUTFALL DITCH PLAN VIEW O � SCALE: 1"=200' (PRIOR TO REDUCTION) c) OUTFALL DITCH PLAN VIEW TBM //2 REBAR 3' SOUTH OF FENCE TBM SCALE: 1"=30' (PRIOR TO REDUCTION) 30' FROM RIVER BANK, ELEV=4582.99 (A.B.) TOP NORTH CORNER OF EXIT FLUME TAKEN AS 4586.09. REFERENCE BM IS FINISH FLOOR OF SLUDGE PUMP HOUSE TAKEN AS 4594.50. I T00--N-F E ISTING FT � assa +4 OF K n w EXISTING RIGHT97 (A. ') 'O4 _S E I LET DET LS Di TOP OF BAN INSTAL 6 HDPE IPE 9 0.13 P R DIET vi 8 w + ,-, 8 _ a Q _ — — — ra- 4 - - LJ Z F nz _ -- - .. _ a a 4580 - - - -- ---- --- -- 46 1, E. GALLATIN RIVER Z Z - z EX STI FIOWUNE - - w `- W H .aJ z m Z [L 4576 -- JJ -— - - 3 -- ~ E w 4 J d W LLLl w - - — au CL ' 0. V 33 � d n wz F- 0e J 4572 ap MZ= oV - I _ 4 F a EXISTING COBBLE OUTFALL} z LJ F-- � LU a w z z » - SLOPE FACE TO MATCH Q U O 4568 N- - - m FLARED END SECTION 0 3 + o STA 15+34 (A.B.) LLJ w - o + - .a 36" FLARED END SECTION (% Q Z 4564 BACKFILL PER DET © O Z rn DAT(/L ELEV - ---- - - - � $ Q w 4560.00 m Z J -0 n' 01 m rn N m o n n Lil Q O Y O D D N <c) N N .o �O! m0' Ism a N m mo °n'o no no no no no nv' n°' no' n m wEd u> 'n m v1 m 'o m 'o m ,o m ,n m ,n m ,n n u7 n n n Q IV = a as a� <y a� as .ra �a as oa <a a a m p m 10+00 11+00 12+00 13+00 14+00 15+00 PROJECT NO. 0471.032 OUTFALL DITCH PROFILE m PLAN VIEW OF OUTLET SHEET NUMBER SCALE: HORZ.: 1"=30' 7 OF B VET: 1"=5' 7 NTS DRAWING NUMBER (PRIOR TO REDUCTION) 7 ?o mo Li amcsii -M PHOTO 3-1 PHOTO 3-2 o 0 AS A NUCU' UU �1 9 n N�1s i P ymo o� P CONCRETE HEADWALL SEE DETAIL r• EXISTING BANK BACKFILL PER DETtoy ® m EXISTING BANK yU 14' a Z STA 0+41 BEGIN PIPE n o _ � g�g 36" F ED END SECTION o FLOW � z 30' W SLOPE FACE TO MATCH FLARED FOOTING NOT SHOWN FOR CLARITY END SECTION 6"-8" ANGULAR COBBLES Ua ono _ NOTES: NOTES: PLAN VIEW OF INLET ag O EXISTING COBBLE OUTFALL TO REMAIN. PIPE TO O NEW PIPE TO BEGIN AT FENCE LOCATION, SEE BET 0 AND © 7,H NTS gg BE TERMINATED AT UPPER END OF OUTFALL. O PORTION OF FENCE CROSSING DITCH TO BE REMOVED. NEW FENCE TO BE INSTALLED AFTER PIPE INSTALLATION. 0 „+ OQ� S � 3a PHOTO 3-3 c[i TYPE C BACKFILL PER SECTION 02221 SEEDED TOPSOIL 18" MINIMUM (MOUND TOPSOIL IF NEEDED) IMPORTED UNCLASSIFIED BACKFILL MATERIAL 36" DOUBLE-WALL HDPE PIPE z 6" MINIMUM DEPTH VARIES 4-5' Z Z a O J o O O o w F a I.- W a'f o •• ' _ Q 1n Ld j J _ 4" o:: O < F-- d w C n SELECT TYPE 1 BEDDING W MATERIAL PLACED IN 6" 1.— _ 0 TYPE 1 BEDDING MATERIAL PLACED LAYERS & COMPACTED AS Q L) m IN 6" LAYERS & COMPACTED AS SPECIFIED IN SECTION tz m SPECIFIED IN SECTION 02221. 12" THICK FOOTING (A.B.) 02221. Lil .. WIDTH VARIE 0-35 {— w n Q d 0 0 `o_ TYPE B BACKFILL O Q PER SECTION 02221 ©TYPICAL PIPE/BACKFILL CROSS SECTION Z L� oN 7,8 NTS Q� z 0 0 O1 SEE TYPICAL SECTION, BET i N 0 w 0 Lv NOTES: m m 1. STRIP VEGETATION FROM EXISTING CHANNEL. CONTRACTOR MUST TAKE CARE TO MINIMIZE DISTURBANCE TO VEGETATION ON BANKS AND ADJACENT TO THE SITE. paOdEci No. N 2, CONTRACTOR SHALL SUBMIT SHOP DRAWING ON UNCLASSIFIED BACKFILL TO BE 0471.032 n INCORPORATED INTO THE TRENCH BACKFILL. SHEET NUMBER r 8OF 8 a DRAWING NUMBER 0 8