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Home My WebLink About013 - C-6 - TEMP BYPASS PLAN � ' �� i � � � G � D ., • C � = 1 Z � � � i < � m BYPASS PUMP DISCHARGE LOCATION(APPROXIMATE) I • EXCAVATE AND TIE INTO EXISTING 4"DIAMETER SDR-26 BYPASS PUMP SUCTION LOCATION 1 � PVC FORCE MAIN MANHOLE ID:M0422 I •• CONTRACTOR SHALL VERIFY THAT THE 48"DIAMETER DISCHARGE VAWE WITHIN THE LIFT STATION RIM=4781.48 VALVE IS CLOSED TO THIS MAIN PRIOR TO MAKWG 8"INV IN(W)=4771 46 CONNECTION. �� BYPASS PUMP SUCTION LOCATION 2 8"INV OUT(E)=477128 •• CONNECTION SHALL BE MADE TO ENSURE NO � ---�„ MANHOLE ID:M0529 LEAKWG OCCURS DURWG BYPASS 48"DIAMETER • EXCAVATION SHALL BE LOCATED IN A WAY TO NOT UNDERMINE THE EXISTING CURB IN THIS LOCATION. \ RIM=4788.14 . ELEVATIONS(BASED ON RECORD DRAWINGS) � �s��wv i N�s�=ana�o \ � 15"INV OUT(N)=4778.53 •• EXISTING ASPHALT GRADE(APPROX.)=4781.61 � \ •• 4"INV(APPROX.)=4775.68 ��-��` I •• CONTRACTOR TO RELD VERIFY LOCATION AND � DEPTH , • PRESERVE AND PROTECT EXISTING 6"PVC FORCE MAIN .._...� • UPON COMPLETION,THE CONTRACTOR SHALL PLUG � . AND ABANDON THE EXISTING 4"MAIN EACH SIDE OF THE TIE-IN LOCATION. �I •• CONTRACTOR SHALL INSTALLING HYDRAULIC GROUT FOR A MINIMUM OF 5'EACH SIDE OF THE �� -�ss- - OPENING AND INSTALL TWO SOCKET WELDED -�- - - '�� - -�s� �-�ss - - LAUREL PARKWAY -�::s - -- -----_ (GWED)CAPS. ""`-- I -FFM�- --- -=- -------- I -=- - - I � - °�I � I ------ ---- - I -- j- -- so� - � L -� I� � �� - - - GENERAL TEMPORARY BYPASS PUMPING NOTES � � ' DEMOLITION I I 1.CONTRACTOR SHALL SUBMIT A TEMPORARY BYPASS PUMPING PLAN TO THE OWNER/ENGINEER REVIEW AND APPROVAL NO LATER THAN 21 DAYS PRIOR TO III��.��.�� BYPASS PUMPWG OPERATIONS,AND THE PLAN SHALL BE APPROVED BY THE CITY OF BOZEMAN.THE PLAN MUST ALLOW THE ENTIRE LIFT STATION TO BE , I 1.THE CONTRACTOR IS RESPONSIBLE FOR HAULWG ALL DEMOLISHED OFFLWE FOR THE TOTAL ESTIMATED TIME TO COMPLETE THE ACTIVATION OF THE NEW WET WELL,MANIFOLD,AND CONTROLS.THE SUBMITTAL SHALL I �' ' yl� EXISTING WET WELL MATERIAL OFF SITE ANY COST ASSOCIATED WITH HAULING OR WCLUDE THE FOLLOWING,AT MINIMUM. ADDITIONAL REQUIREMENTS ARE SPECIFIED IN PART 1.08 OF SPECIFICATION SECTION 01 14 16. � I � DISPOSAL OF THE MATERIAL IS THE RESPONSIBILITY OF THE 1.1. LISTING OF EQUIPMENT(BYPASS PUMP SIZES,CAPACITIES,NUMBER,BYPASS PIPELINE SIZE AND MATERIAL TYPES). I - � CONTRACTOR. 1.2. DRAWING OF PLUG AND BYPA55 PUMP/PIPELINE LOCATION. � 2.DEMOLITION ITEMS ARE GENERALIZED BELOW AND DO NOT 13. OPERATION PLAN. I I . CONSIDER TIMING OF THAT WORK. 2.THE TEMPORARY BYPASS PUMPING SYSTEM SHALL BE CAPABLE OF OPERATING AT THE MAXIMUM FLOW RATE WITH THE LARGEST PUMP OUT OF SERVICE. I I RESTORATION 2.1. ESTIMATED MAXMIMUM FLOW IS 122 GPM BASED ON EVALUATION OF EXISTING SYSTEM DATA.TOTAL DYNAMIC HEAD VARIES BASED ON PUMP SUCTION AND DISCHARGE LOCATIONS AND DICHARGE PIPE SIZE.SEE THE PLAN FOR APPROXIMATE INVERTS AT PROPOSED SUCTION AND DISCHARGE � 1.DEMOLITION ITEMS ARE GENERALIZED BELOW AND DO NOT MANHOLES. I � CONSI�ER TIMING OF THAT WORK. 2.SITE RESTORATION SHALL WCLUDE CLEAN UP,FINAL GRADWG,AND 3.CONTRACTOR SHALL BE RESPONSIBLE FOR WSTALLWG AND OPERATING TEMPORARY BYPASS PUMPING SYSTEM,INCLUDWG SAFETY EQUIPMENT,TRAFFlC I EXISTING LIFT STATION BUILDING a REPLACING SURFACE MATERIALS IN DISTURBED AREAS. BARRIERS,ETC.,TO ENSURE PUBLIC SAFETY.TRAFFIC CONTROL PLAN SHALL BE SUBMITTED TO THE ENGINEER,OWNER,AND CITY OF BOZEMAN FOR ♦ 3.CONTRACTOR SHALL REPLACE ANY REMOVED TRAFRC MARKINGS. REVIEW A MINIMUM OF 7 DAYS PRIOR TO THE PLANNED START OF THE WORK. I I I � 4.CONSTRUCTION WORK SHALL BE IN ACCORDANCE WITH CITY OF BOZEMAN DESIGN STANDARDS,CITY OF BOZEMAN MODIFICATIONS 0 4.CONTRACTOR SHALL BE RESPONSIBLE FOR PLACING AND MONITORING ANY GRAVITY SEWER PLUGS ANDIOR OTHER FLOW CONTROL DEVICES. PWG I I I TO MONTANA PUBLIC WORKS STANDARD SPEGFICATIONS,AND PLACEMENT SHALL NOT CAUSE SURCHARGWG OF SEWERS,DAMAGE TO SEWERS,DAMAGE TO PRIVATE OR PUBLIC PROPERTY,OR CREATE A NUISANCE OR j MONTANA PUBLIC WORKS STANDARD SPEGFICATIONS(CURRENT a PUBLIC MENACE. I I I EDITION). 5.TRENCH SHALL BE BACKFILLED USING FLOWABLE FILL AND BE IN a 5.PLUGS SHALL BE PROVIDED WITH TAPS FOR CONNECTION OF PRESSURE GAUGES AND AIR HOSES. PLUGS SHALL PROVIDE ROW-THROUGH CAPABILITV. BYPASS PUMP CONTROLS AND ALARMS ACCORDANCE WITH THE STANDARD SECTION SHOWN IN DETAIL 2 ON �°1 1.CONTRACTOR SHALL PROVIDE THE CONTROL SYSTEM NECESSARY FOR FLOW CONTROL CONTROLS SHALL BE CAPABLE OF PROVIDING FULLY AUTOMATIq SHEET SD-4. 6.BYPASS PUMP�ISCHARGE PIPING SHALL BE MONITORED TO ENSURE THAT NO LEAKS ARE PRESENT. PIPING SHALL HAVE A PRESSURE RATING AT LEAST LS 6.ANY DAMAGE TO ITEMS NOT DESIGNATED FOR REMOVAL IS THE 0 TIMES THE ANTICIPATED OPERATING PRESSURE,BE CONSTRUCTED OF HDPE PRESSURE PIPE(SDR-17 MINIMUM)WITH BUTT-FUSION WELDED JOINTS. UNATTEN�E�OPERATION. RESPONSIBILITY OF THE CONTRACTOR TO RESTORE BACK TO THE w 2.AN EMERGENCY CALL BOX ALARM SYSTEM SHALL NOTIFY THE CONTRACTOR OF THE FAILURE OF ANY COMPONENT OF THE FLOW CONTROL SYSTEM. ORIGINAL CONDITION. 7.CONTRACTOR SHALL PROVIDE HS-20 RATED STEEL RAMPS TO ALLOW TRAFRC TO CROSS BYPASS LINES.WARNING SHALL BE PROVIDED TO VEHICULAR CONTRACTOR SHALL MAKE PROVISIONS TO ALSO NOTIFY THE CITY OF BOZEMAN AND ENG WEER OF ANY FAILURES � - TRAFFIC FOR THE PRESENCE OF THESE RAMPS. _ 7.1. ALTERNATIVELY,THE CONTRACTOR MAY SUBMIT A TRAFFIC CLOSURE PLAN TO THE CITY OF BOZEMAN FOR THEIR REVIEW AND APPROVAL. 3.A MECHANICALLY OPERATED VISUAL AID(SUCH AS A SWING CHECK VALVE)SHALL BE PROVIDED TO CONFIRM THAT THE PUMPS ARE OPERATING � CONTRACTOR SHALL COVER ANY COSTS REQUIRED FOR LANE CLOSURES. CORRECTLY.THE BYPASS SETUP SHALL ALSO INCLUDE PRESSURE GAUGE AND AIR RELEASE VALVES ON THE DISCHARGE PIPE FOR BYPASS SETUP. BYPASS PUMP EQUIPMENT WORK EXECUTION �z � 1.ALL WORK SHALL CONFORM TO ALL APPLICABLE OSHA REGULATIONS � 1.EQUIPMENT SHALL BE�ESIGNED OR EQUIPPED WITH DEVICES TO MINIMIZE NOISE.NOISE LEVELS SHALL NOT EXCEED 60 DBA WHEN MEASURED AT THE 2.CONTRACTOR SHALL NOTIFY ENGINEER,OWNER,AND GTY OF BOZEMAN AT LEAST 48 HOURS PRIOR TO IMPLEMENTING FLOW CONTROL SYSTEM. g NEAREST PROPERTY LINE. 3.THE TEMPORARY FLOW CONTROL SYSTEM MUST BE OPERATED FOR A MINIMUM OF 12 HOURS WITHOUT PROBLEMS OR FAILURE PRIOR TO BEGINNING ANY o OTHER WORK RELATED TO THE PROJECT. Q 2.SWING CHECK VALVES SHALL BE PROVIDED FOR EACH PUMP. 4.ALL ANCILLARY COSTS(FUEL,ELECTRICAL POWER,MATERIALS,ETC.)REQUIRED TO OPERATE THE BYPASS SYSTEM SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR. 3.ALL BYPASS PUMPS AND ALARM CONDITIONS SHALL BE TRANSMITTED TO CONTRACTOR AND OWNER THROUGH THE USE OF A CALL BOX,WITH THE 5.WNTRACTOR SHALL ENSURE THAT ALL VAWES INSIDE THE LIFT STATION BUILDING ARE CLOSED TO PREVENT SEWER FROM BEING DIVERTED INTO THE WET J WELL. � CONTRACTOR REQUIRED TO RESPOND FIRST TO THE ALARM. CIN OF BOZEMAN SHALL BE MCLUDED ON THE CALL TREE IN THE EVENT THAT CONTRACTOR 40 20 0 40 80 � AND OWNER DO NOT RESPOND. PRO�ECT CLEANUP 0 4.PUMPS IMPELLERS SHALL BE SIZED TO PASS A 3-INCH DIAMETER SOLIDS,AT MINIMUM. 1.CONTRACTOR SHALL DISCHARGE RESIDUAL SEWAGE IN BYPASS PIPELINE AN�PUMPING EQUIPMENT TO WORKING SEWER BEFORE THE SYSTEM IS SCALE IN FEET o DEACTIiATEDANDREMOVEDATTHECOMPLETIONOFTHEWORK. � AGENCY REVIEW (REVISION L) 5.EQUIPMENT SHALL BE FULLY AUTOMATIC AND SELF-PRIMING UNITS THAT DO NOT REQUIRE USE OF FOOT VALVES OR VACUUM PUMPS IN PRIMING SYSTEM. 1 � � � JUNE 2025 J veRiFvscn�enNoco�oR! REVISIONS l` DRAWNBY: KJS PROJECTNUMBER � THIS SHEET MAV BE REOl10ED AND IS • ;�1`��AI�J �� y iN1en�DE�ToeewCo�oR.Tr+eanR NO. DESCRIPTION BY DATE ;C�` � �� 10678.001 ee�owwa�mensuReoNeiNCHnr Morrison � 2880TechnologyBlvdWest DSGN.BY: LRH NORTONRANCHLIFTSTATIONUPGRADES �i} *I'4� SHEET NUMBER a oRiciNn�oesicNscn�enNorzeo, ■■ Bozeman,MT 59718 (� wl APPR.BY: LRH gOZEMAN MONTANA �3 GREEN,ANO BLl1E WILL BE VISIBLE IF • REPRODUCE�TLV. 4OS.5B7.O7Z'I rA W� � M a i e r e � No 48 6 PE=J DATE O6/2025 DRAWWG NUMBER MooiF sca�enccoRON��v� engineers surveyors planners scientists � `"`"`"'m-m.net !``4�,nSF�sALE��c�= e C.REVIEW TEMPORARYBYPASSPLAN C-6 a PLOTTED BV'.LEE HAGEMAN ON JUN04/2025 COPVRiGHT�OMORRISON-MAIERLE,2025 DATE: