Bid No. 01-26-01 Plans.PDF

CITY OF KEENE

GEORGE ST

BRIDGE

LOCATION MAP

VICINITY MAP

NEW HAMPSHIRE

KEENE, NH

INDEX OF SHEETS

NUMBER SHEET SHEET TITLE

1 CV-01 TITLE SHEET

2 PN-01 PROJECT NOTES (SHEET 1 OF 2)

4 RW-01 ROADWAY AND UTILITY PLAN

RW-02 ROADWAY PROFILE

RW-03 ROADWAY TYPICAL SECTION & DETAILS

RW-04 DETOUR PLAN

RW-05 EASEMENT AND LANDSCAPE PLAN

BR-01 GENERAL PLAN AND ELEVATION

BR-02 BORING LOGS

BR-03 BRIDGE TYPICAL SECTIONS AND SURVEY LAYOUT

BR-04 ABUTMENT A PLAN AND ELEVATION

BR-09 RAIL LAYOUT PLAN

ROADWAY CROSS SECTION (STA 10+05 TO STA 10+75)

PN-02 PROJECT NOTES (SHEET 2 OF 2)

RW-06 BRIDGE SITE PLAN

ROADWAY CROSS SECTION (STA 11+00 TO STA 11+65)

ROADWAY CROSS SECTION (STA 11+75 TO STA 12+31)

ROADWAY CROSS SECTION (STA 12+50 TO STA 13+75)

ROADWAY CROSS SECTION (STA 13+50 TO STA 14+00)

ROADWAY CROSS SECTION (STA 14+15 TO STA 14+55)

XS-01

XS-02

XS-03

XS-04

XS-05

XS-06

10 RW-07 EMBANKMENT STABILIZATION DETAILS

PREPARED BY:

PREPARED FOR:

FEDERAL PROJECT NUMBER X-A005(496)

CHESHIRE COUNTY

GEORGE STREET BRIDGE REPLACEMENT

CONSTRUCTION DOCUMENTS

MCFARLAND JOHNSON PROJECT NUMBER 18820.00

CITY OF KEENE

AUGUST 2025

CITY OF KEENE

350 MARLBORO STREET

KEENE, NEW HAMPSHIRE

(603)352-6550

HTTPS://CI.KEENE.NH.US

KEENE, NEW HAMPSHIRE

CITY OF KEENE PUBLIC WORKS

53 REGIONAL DRIVE

CONCORD, NEW HAMPSHIRE 03301

KEENE PROJECT NUMBER 01-26-01 IT IS A VIOLATION OF THE LAW FOR ANY PERSON, UNLESS ACTING UNDER THE DIRECTION

OF A LICENSED PROFESSIONAL ENGINEER, ARCHITECT, LANDSCAPE ARCHITECT, OR LAND

SURVEYOR, TO ALTER AN ITEM IN ANY WAY. IF AN ITEM BEARING THE STAMP OF A

LICENSED PROFESSIONAL IS ALTERED, THE ALTERING ENGINEER, ARCHITECT, LANDSCAPE

ARCHITECT, OR LAND SURVEYOR SHALL STAMP THE DOCUMENT AND INCLUDE THE

NOTATION "ALTERED BY" FOLLOWED BY THEIR SIGNATURE, THE DATE OF SUCH

ALTERATION, AND A SPECIFIC DESCRIPTION OF THE ALTERATION.

BR-05 ABUTMENT B PLAN AND ELEVATION

BR-06 WINGWALL ELEVATIONS AND TYPICAL SECTION

BR-07 PRECAST CONCRETE RIGID FRAME DETAILS

BR-08 CAST-IN-PLACE CONCRETE APPROACH SLAB DETAILS

BR-10 T3 STEEL BRIDGE RAIL

BR-11 T4 STEEL BRIDGE RAIL

RW-08 DETAIL SHEET (1 OF 3)

RW-09 DETAIL SHEET (2 OF 3)

RW-10 DETAIL SHEET (3 OF 3)

NHDOT PROJECT NUMBER 40653

FOUNDATION AND WATER DIVERSION NOTES:

1. THE EXCAVATION FOR THE FOUNDATION FOOTING MAY ENCOUNTER GROUNDWATER. THE EXCAVATION TO FINAL GRADE AND THE CONTROL OF WATER SHALL BE CONDUCTED IN SUCH A MANNER AS TO PREVENT DISTURBANCE OF THE FOUNDATION BEARING MATERIAL. PUMPING EQUIPMENT SHALL BE PROPERLY FILTERED TO PREVENT LOSS OF FINES.

SUMP AREAS SHOULD BE LOCATED OUTSIDE THE DEFINED LIMITS OF COMMON BRIDGE EXCAVATION. ALL DEWATERING

COSTS SHALL BE INCLUDED IN ITEM 504.1, COMMON BRIDGE EXCAVATION (F).

2. DEWATERING SHALL BE CONTINUOUS DURING INSTALLATION OF STRUCTURAL FILL, PRECAST FOUNDATIONS AND RIGID FRAMES, AND BACKFILL, UNTIL INSTALLATION TO THE GROUND WATER TABLE ELEVATION IS COMPLETE.

3. WATER PUMPED FROM DEWATERING AREAS SHALL BE TREATED APPROPRIATELY BEFORE DISCHARGE. ALL COSTS ASSOCIATED WITH CONSTRUCTION, MAINTENANCE, AND REMOVAL OF FEATURES TO CONTROL POLLUTION OF WATER SHALL BE INCLUDED IN ITEM 699, MISCELLANEOUS TEMPORARY EROSION AND SEDIMENT CONTROL. LOCATION OF TREATMENT FEATURES SHALL BE DETERMINED BY THE CONTRACTOR AND APPROVED BY THE ENGINEER PRIOR TO INSTALLATION. FOR THE HANDLING OF PCE IMPACTED GROUNDWATER ON THE WEST SIDE OF BEAVER BROOK, SEE PCE IMPACTED SOIL AND GROUNDWATER NOTES AND THE SOIL AND GROUNDWATER MANAGEMENT PLAN INCLUDED IN THE

CONTRACT DOCUMENTS.

4. PRECAST CONCRETE FOUNDATIONS HAVE BEEN INCLUDED TO LIMIT THE AMOUNT OF PCE IMPACTED GROUNDWATER PUMPING AND TREATMENT REQUIRED DURING BRIDGE CONSTRUCTION. SUBSTITUTIONS TO CAST-IN-PLACE FOUNDATIONS WILL NOT BE ACCEPTED. ALL PRECAST CONCRETE FOR FOUNDATIONS SHALL BE INSTALLED IN THE DRY.

5. PRECAST FOUNDATIONS ELEMENTS SHALL BE DESIGNED BY THE CONTRACTOR AND SHALL INCLUDE COMPONENT CONNECTIONS, AS APPLICABLE, SUCH THAT THE FOUNDATIONS ARE CONTINUOUS IN THE FINAL CONDITION AND ACT AS A UNIT. BOTTOM OF FOOTING ELEVATIONS AND PEDESTAL WALL HEIGHTS SHALL BE AS SHOWN IN THE PLANS.

6. PROTRUDING COBBLES AND BOULDERS ENCOUNTERED WITHIN THE LIMITS OF EXCAVATION SHALL BE CAREFULLY

REMOVED. COST INCLUDED IN ITEM 504.1, LIMITS OF COMMON BRIDGE EXCAVATION (F).

7. THE CONTRACTOR IS RESPONSIBLE FOR THE WATER DIVERSION STRUCTURE (ITEM 503.101) DURING CONSTRUCTION. A PLAN DETAILING THE METHOD OF DIVERSION SHALL BE PREPARED, STAMPED, AND SIGNED BY A LICENSED PROFESSIONAL ENGINEER LICENSED IN THE STATE OF NEW HAMPSHIRE AND SHALL BE SUBMITTED TO THE ENGINEER PRIOR TO THE INSTALLATION OF ANY WATER DIVERSION STRUCTURE. COSTS ASSOCIATED WITH THE DEVELOPMENT OF THE WATER DIVERSION PLAN SHALL BE PAID FOR UNDER ITEM 645.73. ITEM 503.101 INCLUDES INSTALLATION, MAINTENANCE, AND REMOVAL OF WATER DIVERSION STRUCTURES. THE WATER DIVERSION SHALL ALLOW PROJECT ELEMENTS TO BE

INSTALLED IN THE DRY.

8. ITEMS 503.201 AND 503.202, COFFERDAMS, ARE INCLUDED FOR USE AS EARTH SUPPORT AROUND BOTH ABUTMENTS. NO PAYMENT WILL BE MADE ON THESE ITEMS FOR USE AS WATER DIVERSION STRUCTURES (WATER DIVERSION STRUCTURES SHALL BE INCLUDED IN ITEM 503.101). ITEMS 503.201 AND 503.202 SHALL BE DESIGNED BY A PROFESSIONAL ENGINEER, LICENSED IN THE STATE OF NH.

BRIDGE DEMOLITION NOTES:

1. REMOVAL OF THE EXISTING BRIDGE STRUCTURE (ITEM 502.), UNLESS OTHERWISE NOTED ON THE PLANS, SHALL INCLUDE THE COMPLETE REMOVAL OF THE EXISTING BRIDGE. REMOVAL UNDER ITEM 502. IS INTENDED TO INCLUDE: ALL BRIDGE

SUPERSTRUCTURE COMPONENTS, ALL BRIDGE SUBSTRUCTURE COMPONENTS (INCLUDING MASONRY

WINGWALLS/RETAINING WALLS), THE SECTION OF GABION WALL INDICATED IN THE PLANS ON THE NORTHEAST CORNER, AND THE EXISTING RETAINING WALL FOOTING THAT WAS ABANDONED ON THE NORTHEAST CORNER.

2. THE CONTRACTOR'S METHOD OF REMOVAL OF THE EXISTING BRIDGE SHALL BE SUBMITTED FOR DOCUMENTATION, IN ACCORDANCE WITH SECTION 105.02, PRIOR TO THE COMMENCEMENT OF ANY REMOVAL OPERATIONS.

REINFORCEMENT NOTES:

1. ALL REINFORCEMENT SHALL HAVE 2" MINIMUM CLEAR COVER, UNLESS OTHERWISE NOTED.

2. ANY EPOXY COATED BARS CUT TO FIT SHALL BE TOUCHED UP WITH AN APPROVED EPOXY COATING

MATERIAL. ALL COSTS SHALL BE INCLUDED IN ITEM 544.31.

3. REINFORCING LEGEND:

ALT = ALTERNATE BOT = BOTTOM BRG = BEARING

CLR = CLEAR DOW = DOWEL EQ = EQUAL

FF = FAR FACE MAX = MAXIMUM MC = MECHANICAL CONNECTOR

MID = MIDDLE MIN = MINIMUM NF = NEAR FACE

SYM = SYMMETRICAL TYP = TYPICAL E = EPOXY COATED

EF = EACH FACE SPL = SPLICE

4. FOR TYPICAL BENDING DETAILS, RECOMMENDED PIN DIAMETER "D" OF BENDS AND HOOKS AND

OTHER STANDARD PRACTICE, SEE CURRENT CONCRETE REINFORCING STEEL INSTITUTE

"MANUAL OF STANDARD PRACTICE."

GENERAL NOTES:

1. ALL CONSTRUCTION MATERIALS AND METHODS SHALL CONFORM TO THE REQUIREMENTS IN THE LATEST EDITION OF THE FOLLOWING STANDARDS AND REGULATIONS (IF CONFLICTING REQUIREMENTS ARE FOUND, THEN THE MORE STRINGENT

GOVERNS):

A. CITY OF KEENE STANDARDS AND DETAILS

B. NEW HAMPSHIRE DEPARTMENT OF TRANSPORTATION STANDARD SPECIFICATIONS FOR ROAD AND BRIDGE

CONSTRUCTION (DATED 2016)

C. NEW HAMPSHIRE DEPARTMENT OF ENVIRONMENTAL SERVICES (NHDES) ADMINISTRATIVE RULES AND STANDARDS D. USDOT-FHWA's "MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES" (MUTCD, LATEST EDITION)

E. ALL APPLICABLE INTERNATIONAL AND NATIONAL CODES.

2. THE INTENT OF THIS PROJECT IS TO REPLACE THE BRIDGE UTILIZING A ROADWAY CLOSURE LOCAL TO THE BRIDGE SITE, SEE THE PROSECUTION OF WORK FOR WORK RESTRICTIONS.

3. THE CONTRACTOR SHALL OBTAIN ALL APPLICABLE CONSTRUCTION PERMITS, PRIOR TO CONSTRUCTION, FROM NHDES, USEPA, UTILITY COMPANIES, THE CITY OF KEENE AND OTHER REGULATORY AGENCIES. THE CONTRACTOR SHALL NOTIFY

ALL AGENCIES PRIOR THE START OF CONSTRUCTION.

4. THE CONTRACTOR SHALL COORDINATE ALL CONSTRUCTION ACTIVITIES IN SUCH A MANNER AS TO CAUSE A MINIMUM OF INCONVENIENCE TO THE PUBLIC, AND MINIMIZE INTERFERENCE WITH NORMAL OPERATIONS OF THE ADJACENT

PROPERTIES.

5. THE CONTRACTOR SHALL PROTECT ALL TRENCHES AND EXCAVATIONS AGAINST CAVING IN BY SUITABLE SHORING, CAGES/BOXES, OR PROPER SLOPING AS DESCRIBED IN ALL APPLICABLE OSHA STANDARDS.

6. BEFORE ANY REMOVALS, THE CONTRACTOR SHALL ENSURE ALL EXISTING ADJACENT COMPONENTS ARE ADEQUATELY SHORED. IF ANY UNFORESEEN CONDITIONS ARE ENCOUNTERED WHICH REQUIRE DEVIATION FROM THE CONTRACT DRAWINGS AND SPECIFICATIONS, THE CONTRACTOR SHALL CONTACT THE ENGINEER IMMEDIATELY.

7. THE CONTRACTOR SHALL BE RESPONSIBLE TO REPAIR TO ORIGINAL CONDITION, ANY AND ALL DAMAGE TO BUILDINGS, PAVEMENT AREAS, EQUIPMENT AND FURNISHINGS CAUSED DURING PERFORMANCE OF WORK COVERED BY THIS CONTRACT. PROPERTY IRONS (TO BE RESET BY A LICENSED LAND SURVEYOR), SIGNS, MAIL BOXES, OR FENCES REMOVED OR DESTROYED BY THE CONTRACTOR DURING CONSTRUCTION SHALL BE REPLACED AT THE CONTRACTOR'S EXPENSE, AND TO THE SATISFACTION OF THE ENGINEER.

8. ALL EXCAVATED SOIL, NOT PCE IMPACTED, DEEMED UNSUITABLE FOR RE-USE ON SITE SHALL BECOME THE PROPERTY OF THE CONTRACTOR. THE CONTRACTOR SHALL PLACE MATERIAL IN AREAS APPROVED BY THE ENGINEER AND THE CITY.

EXCAVATED MATERIALS SHALL BE GRADED AND COMPACTED IN ACCORDANCE WITH THE SPECIFICATIONS AND AS

DIRECTED BY THE CITY.

9. ALL WASTE MATERIALS, DEBRIS, AND RUBBISH SHALL BE HAULED AND DISPOSED OF BY THE CONTRACTOR AT AN OFF-SITE LOCATION. PRIOR TO DISPOSAL ON ANY OFF-SITE AREAS, A LETTER ALLOWING SUCH DISPOSAL SHALL BE OBTAINED FROM THE PROPERTY OWNER AND THE LOCATION SHALL BE APPROVED BY THE ENGINEER. THE CONTRACTOR SHALL OBTAIN ALL REQUIRED PERMITS FOR DISPOSAL AREAS. COSTS SHALL BE INCLUDED IN ITEM 692. - MOBILIZATION.

10. THE CONTRACTOR SHALL KEEP ALL SURFACES UTILIZED BY VEHICLES CONTINUOUSLY FREE OF DEBRIS. WHERE REQUIRED, SURFACES SHALL BE WATERED TO PREVENT THE BLOWING OF DUST. STREETS SHALL BE SWEPT WEEKLY OR AS REQUIRED BY THE CITY OR ENGINEER. COSTS SHALL BE INCLUDED IN ITEM 619.1 - MAINTENANCE OF TRAFFIC.

11. THE CONTRACTOR SHALL KEEP THE PROJECT AREA CLEAN AND FREE OF DUST AND DEBRIS RESULTING FROM THEIR OWN OPERATIONS. DAILY CLEANUP THROUGHOUT THE JOB SITE SHALL BE NECESSARY AS THE CONTRACTOR PROGRESSES THE WORK, BUT EXTRA PRECAUTIONS IN CLEANUP SHALL BE MADE PRIOR TO WEEKENDS AND HOLIDAYS OR STOPPAGE

OF WORK.

12. AT COMPLETION OF WORK, THE CONTRACTOR SHALL REMOVE ALL WASTE MATERIALS, TOOLS, EQUIPMENT, MACHINERY, AND SURPLUS MATERIALS AND CLEAN ALL EXPOSED SURFACES. PROPERTY AND ALL RIGHT-OF-WAYS SHALL BE LEFT IN A

CONDITION EQUAL TO THAT AT THE BEGINNING OF WORK OR AS SPECIFIED IN THE PLANS.

13. THE ENGINEER SHALL BE NOTIFIED PRIOR TO CONSTRUCTION IF THERE ARE ANY DISCREPANCIES IN PLANS OR EXISTING DATA. AFTER SUCH NOTIFICATION, WORK SHALL NOT PROCEED WITHOUT WRITTEN PERMISSION FROM THE ENGINEER.

14. REMOVE TOPSOIL FOR ITS TOTAL DEPTH WITHIN THE LIMITS OF THE SLOPE LINES. UNLESS OTHERWISE DIRECTED, STOCKPILE TOPSOIL AND USE IT ON THE PROJECT AS NEEDED UNDER SECTION 646.51 - TURF ESTABLISHMENT WITH

MULCH TACKIFIERS AND LOAM.

15. SURVEY DATA FOR THIS PROJECT WAS COLLECTED BY GM2 ASSOCIATES, INC. THE DATUMS FOR THE PROJECT ARE:

HORIZONTAL CONTROL- STATE PLANE COORDINATES NAD83 (2011); VERTICAL CONTROL- NAVD88.

16. DIMENSIONS, ANGLES, BEARINGS, AND ELEVATIONS SHOWN ON THESE PLANS HAVE BEEN OBTAINED FROM LIMITED FIELD INVESTIGATIONS AND SURVEY AND MAY NOT ACCURATELY REFLECT ACTUAL FIELD CONDITIONS. ANY DISCREPANCIES IN DIMENSIONS, CHARACTER OR EXTENT OF THE EXISTING FEATURES SHALL BE BROUGHT TO THE ATTENTION OF THE ENGINEER BEFORE ADVANCING THE WORK. SHOP DRAWINGS REQUIRED FOR VARIOUS ITEMS OF THE WORK SHALL INDICATE THE ACTUAL FIELD MEASUREMENTS AND

SHALL BE SO NOTED.

17. ALL WORK SHALL BE PERFORMED WITHIN THE LIMITS OF THE RIGHT-OF-WAY AND TEMPORARY OR

PERMANENT EASEMENTS UNLESS OTHERWISE INDICATED ON THE PLANS.

18. THE CONTRACTOR SHALL TAKE ALL NECESSARY MEASURES TO ENSURE THAT DEBRIS DOES NOT FALL IN THE WATERWAY BELOW THE EXISTING STRUCTURE. ALL COSTS INCLUDING ERECTION, MAINTENANCE AND REMOVAL OF TEMPORARY STRUCTURES OR OTHER SUCH APPROVED METHODS, SHALL BE SUBSIDIARY TO THE APPROPRIATE ITEMS OF WORK BEING

PERFORMED.

19. PROPERTY LINES SHOWN ARE APPROXIMATE AND WERE DERIVED FROM THE CITY OF KEENE'S GIS.

20. CONTRACTOR MUST APPLY FOR A NO-FEE EXCAVATION PERMIT FROM THE PUBLIC WORKS DEPARTMENT PRIOR TO BEGINNING WORK. THE SUBMISSION REQUIRES APPROVAL OF THE TRAFFIC CONTROL PLAN AND VERIFICATION OF THE

CONTRACTOR'S DIG-SAFE SUBMISSION.

21. A TEMPORARY CONSTRUCTION EASEMENT HAS BEEN NEGOTIATED ON THE PARCEL OWNED BY PEOPLE'S LINEN, LOCATED ADJACENT TO THE NORTHWEST CORNER OF THE BRIDGE (9 GIFFIN STREET). THIS EASEMENT IS INTENDED TO PROVIDE SPACE FOR THE MANAGEMENT AND TEMPORARY HANDLING OF PCE IMPACTED SOIL AND GROUNDWATER. SEE THE SOIL AND GROUNDWATER MANAGEMENT PLAN INCLUDED IN THE CONTRACT DOCUMENTS FOR ADDITIONAL INFORMATION. ALL COSTS ASSOCIATED WITH THE DEVELOPMENT OF THE EASEMENT AREA AND POST CONSTRUCTION RESTORATION SHALL

BE INCLUDED IN ITEM 692. - MOBILIZATION.

GENERAL TRAFFIC CONTROL NOTES

1. THE CONTRACTOR SHALL CONSTRUCT ALL AREAS OF THE PROJECT AS QUICKLY, EFFICIENTLY AND SAFELY AS POSSIBLE WHILE

MINIMIZING DISRUPTION TO THE TRAVELING PUBLIC.

2. ALL TEMPORARY TRAFFIC LANES SHALL BE A MINIMUM OF 11' IN WIDTH.

3. ACCESS TO EXISTING DRIVEWAYS SHALL BE MAINTAINED AT ALL TIMES.

4. THE CONTRACTOR SHALL PROVIDE FLAGGERS, WARNING SIGNS, AND BARRICADES IN COMPLIANCE WITH THE "MANUAL OF UNIFORM TRAFFIC CONTROL DEVICES" (MUTCD) ISSUED BY THE UNITED STATES DEPARTMENT OF TRANSPORTATION, FEDERAL HIGHWAY ADMINISTRATION, ISSUE OF 2009 EDITION WITH REVISIONS OR ANY LATER REVISED EDITION, AND WILL FOLLOW ALL OF THE

REQUIREMENTS OF NHDOT SPECIFICATION 619 - MAINTENANCE OF TRAFFIC.

5. THE CONTRACTOR SHALL MAINTAIN TRAFFIC AND PROTECT THE PUBLIC FROM DAMAGE TO PERSONS AND PROPERTY WITHIN THE

CONSTRUCTION LIMITS FOR THE DURATION OF THE CONTRACT.

6. PEDESTRIAN ACCESS TO ALL DRIVEWAYS, WALKWAYS AND BUSINESSES MUST BE MAINTAINED AT ALL TIMES, AND SHALL BE ON A HARD DURABLE SURFACE COMPLIANT WITH THE ACCESSIBILITY GUIDELINES FOR PEDESTRIAN FACILITIES IN THE PUBLIC

RIGHT-OF-WAY.

7. USE AND PLACEMENT OF PORTABLE CHANGEABLE MESSAGE SIGNS TO BE AS DIRECTED BY THE ENGINEER, AND TO BE PAID UNDER

ITEM 619.25 - PORTABLE CHANGEABLE MESSAGE SIGN.

8. THE CONTRACTOR SHALL SUBMIT A TRAFFIC CONTROL PLAN DETAILING CONSTRUCTION SEQUENCING AND THE PLACEMENT OF ALL TRAFFIC CONTROL DEVICES TO THE ENGINEER 7 DAYS PRIOR TO THE START OF CONSTRUCTION FOR REVIEW AND APPROVAL.

9. NO OPEN EXCAVATION SHALL BE ALLOWED DURING NIGHT TIME HOURS EXCEPT AS APPROVED IN WRITING BY THE ENGINEER.

WHEN ACCEPTABLE, OPEN EXCAVATIONS SHALL BE PROTECTED BY FENCING.

10. ALLOWABLE WORKING DAYS ARE MONDAY THROUGH FRIDAY, EXCLUDING HOLIDAYS. ALLOWABLE WORKING HOURS ARE 7 AM TO 5 PM. VARIATION FROM THIS SCHEDULE REQUIRES ADVANCE APPROVAL FROM THE CITY OF KEENE. NO TRAFFIC IMPACTS, BEYOND THE IMPLEMENTED ROADWAY DETOUR FOR THE CLOSURE OF GEORGE STREET AT THE BRIDGE SITE, WILL BE PERMITTED ON THE

FOLLOWING SPECIAL HOLIDAYS:

· TASTE OF KEENE FOOD FESTIVAL/ART WALK

· KEENE LION'S CLUB ANNUAL DUCK RACE

· PATHWAYS FOR KEENE, 4 ON THE 4TH RACE

· KEENE STATE FRESHMAN MOVE-IN

· KEENE STATE UPPERCLASSMEN MOVE-IN

· KEENE SCHOOL DISTRICT FIRST DAY OF SCHOOL

· KEENE MUSIC FESTIVAL

· KEENE PRIDE FESTIVAL

· CLARENCE DEMAR MARATHON

· KEENE PUMPKIN FESTIVAL

6. THE CONTRACTOR IS RESPONSIBLE FOR PROPER FIT UP OF THE PRECAST AND CAST-IN-PLACE ELEMENTS, PER THE MANUFACTURER'S RECOMMENDATIONS AND TO THE SATISFACTION OF THE ENGINEER.

7. GROUT LEVELING PADS ARE NECESSARY TO GUARANTEE A CORRECT SEAT FOR THE PRECAST RIGID FRAME LEGS TO AVOID UNSIGHTLY DIFFERENCES OF COMPONENTS AND SHALL BE PREPARED IN ACCORDANCE WITH

THE MANUFACTURER'S RECOMMENDATIONS.

8. ALL REINFORCING IN THE PRECAST RIGID FRAME AND WINGWALLS SHALL HAVE 2" CONCRETE COVER, EXCEPT THE TOP MAT OF REINFORCEMENT IN THE TOP SLAB OF THE PRECAST RIGID FRAME SHALL HAVE 2.5" CONCRETE COVER.

9. ALL REINFORCING IN THE PRECAST RIGID FRAME AND WINGWALLS SHALL BE INCLUDED IN ITEM 529.00401 AND SHALL BE

EPOXY COATED.

10. THE DIMENSIONS OF THE PRECAST CONCRETE FOOTING AND THE GEOMETRIC LAYOUT OF THE STRUCTURE (LAYOUT DIMENSIONS, ELEVATIONS, AND WORKING POINT COORDINATES) WERE DEVELOPED BASED ON THE PRECAST CONCRETE RIGID FRAME DIMENSIONS SHOWN IN THESE PLANS. IF THE PRECAST RIGID FRAME DIMENSIONS VARY FROM WHAT IS SHOWN ON THE PLANS, THE LAYOUT MAY VARY AND THE AFFECTED DIMENSIONS, ELEVATIONS AND WORKING POINT COORDINATES SHALL BE ADJUSTED BY THE CONTRACTOR ACCORDINGLY. ANY REQUIRED CHANGES TO THE DIMENSIONS OR GEOMETRIC LAYOUT ON THE PLANS SHALL BE INCLUDED WITH SHOP DRAWING SUBMITTAL FOR ITEM 529.00401.

11. THE CONTRACTOR IS RESPONSIBLE FOR CONFIRMING THAT THE PRECAST CONCRETE FOOTING, AS SHOWN ON THE PLANS, IS COMPATIBLE WITH THE DESIGN FOR THE PRECAST RIGID FRAME. CHANGES TO THE PRECAST CONCRETE FOOTING REQUIRED TO SUIT THE DESIGN OF THE PRECAST RIGID FRAME ARE THE RESPONSIBILITY OF THE CONTRACTOR.

CALCULATIONS, PREPARED, STAMPED, AND SIGNED BY A LICENSED PROFESSIONAL ENGINEER LICENSED IN THE STATE OF NEW HAMPSHIRE, AND REVISED CONTRACT DRAWINGS ARE REQUIRED FOR ANY CHANGES TO THE PRECAST ELEMENTS

SHOWN ON THE PLANS. ALL COSTS INCLUDED IN ITEM 529.00401.

12. THE ENTIRE TOP SLAB OF THE PRECAST CONCRETE RIGID FRAME UNITS SHALL BE COVERED WITH BARRIER MEMBRANE, HEAT WELDED (ITEM 538.5). JOINTS IN THE EXTERIOR VERTICAL RIGID FRAME LEGS SHALL RECEIVE A 2 FOOT STRIP OF BARRIER MEMBRANE, PEEL AND STICK - VERTICAL SURFACES (ITEM 538.2) CENTERED ON THE JOINT.

PROTECTION BOARD SHALL BE USED WITH BARRIER MEMBRANE INSTALLATION AND SHALL BE SUBSIDIARY.

PRECAST CONCRETE RIGID FRAME NOTES:

1. ALL EDGES OF PRECAST CONCRETE SHALL BE CHAMFERED 3/4", UNLESS OTHERWISE NOTED.

2. ITEM 534.3, WATER REPELLENT (SILANE-SILOXANE), SHALL BE APPLIED TO ALL EXPOSED SURFACES OF THE PRECAST RIGID FRAME LEGS, SIDEWALKS, BRUSH CURBS, AND WINGWALLS. WHERE CONCRETE SURFACE CONTACT

EARTH, ITEM 534.3 SHALL BE APPLIED TO 1FT BELOW GRADE.

3. THE DRILLING OF HOLES IN THE PRECAST ELEMENTS SHALL NOT BE PERMITTED, UNLESS APPROVED IN

WRITING BY THE ENGINEER.

4. PRECAST CONCRETE RIGID FRAME UNITS THAT WILL HAVE THE CAST-IN-PLACE SIDEWALK OR BRUSH CURB PLACED ON THEM SHALL BE CAST WITH THE REINFORCEMENT NECESSARY FOR PLACEMENT OF THE SIDEWALKS (SEE DETAILS

INCLUDED IN PLANS).

5. THERE WILL BE NO EARTHEN FILL OVER THE RIGID FRAME. THE PRECAST DESIGN AND DETAILING SHALL INCLUDE CONNECTIVITY (MECHANICAL OR POST TENSIONING) OF ADJACENT PRECAST ELEMENTS TO PREVENT DIFFERENTIAL MOVEMENT AND REFLECTIVE CRACKING OF PAVEMENT SURFACE. THE DESIGN OF THE EXTERIOR RIGID FRAME UNITS, AND THEIR CONNECTIVITY TO INTERIOR UNITS, SHALL CONSIDER COLLISION LOADING APPLIED TO THE BRIDGE RAIL.

PCE IMPACTED SOILS AND GROUNDWATER NOTES:

1. TETRACHLOROETHYLENE (PCE) IMPACTED SOILS AND GROUNDWATER ARE LOCATED ON THE WEST SIDE OF BEAVER BROOK. PCE IS DEFINED AS A F LISTED HAZARDOUS WASTE BY THE EPA. IMPACTED SOILS AND GROUNDWATER ARE REQUIRED TO BE MANAGED IN ACCORDANCE WITH THE SOIL AND GROUNDWATER MANAGEMENT PLAN INCLUDED IN THE

CONTRACT DOCUMENTS.

2. ALL GROUNDWATER PUMPED ON THE WEST SIDE OF BEAVER BROOK AS PART OF EXCAVATION DEWATERING SHALL BE HANDLED AS IMPACTED, STORED IN FRAC TANKS, AND TREATED PRIOR TO DISCHARGE TO THE CITY SEWER SYSTEM. ALL COSTS ASSOCIATED WITH FRAC TANK STORAGE AND GROUNDWATER TREATMENT SHALL BE PAID FOR UNDER ITEMS

1009.21 AND 1009.211 RESPECTIVELY. COSTS FOR THE DESIGN OF THE TREATMENT SYSTEM SHALL BE INCLUDED IN ITEM 1009.211.

3. THE CONTRACTOR SHALL APPLY FOR A CONTAINED OUT DETERMINATION FROM NHDES PRIOR TO PUMPING GROUNDWATER BASED ON THEIR TREATMENT SYSTEM. ALL COSTS ASSOCIATED WITH OBTAINING A CONTAINED OUT DETERMINATION SHALL BE INCLUDED IN ITEM 1009.211. PRIOR TO DISCHARGING TO THE CITY SEWER SYSTEM, THE TREATMENT SYSTEM EFFLUENT SHALL BE TESTED FOR COMPLIANCE WITH THE PARAMETERS OF THE CONTAINED OUT.

ALL COSTS ASSOCIATED WITH ANALYTICAL GROUNDWATER TESTING SHALL BE INCLUDED IN ITEM 1009.212.

4. THE PUMPING OF GROUNDWATER TO THE FRAC TANKS SHALL BE SUBSIDIARY TO THE APPLICABLE EXCAVATION ITEM.

5. SOIL EXCAVATED BELOW THE SEASONAL HIGH GROUNDWATER TABLE SHALL BE HANDLED AS PCE IMPACTED SOILS. FOR THIS PROJECT, THE SEASONAL HIGH GROUNDWATER TABLE SHALL BE TAKEN AS 3FT BELOW EXISTING GRADE.

EXACAVTION OF IMPACTED SOILS SHALL BE PAID FOR UNDER THE APPLICABLE EXCAVATION ITEM DEFINED IN THE PLANS.

ONCE EXCAVATED, SOIL SHALL BE HANDLED ONSITE AND PAID FOR UNDER ITEM 203.35.

6. THE CONTRACTOR SHALL STORE ALL IMPACTED SOILS ONSITE IN WATER TIGHT ROLL OFF CONTAINERS. ALL COSTS ASSOCIATED WITH THE ROLL OFF CONTAINERS SHALL BE INCLUDED IN ITEM 203.35. ALL COSTS ASSOCIATED WITH THE

OFFSITE DISPOSAL OF IMPACTED SOILS SHALL BE INCLUDED IN ITEM 1009.31.

7. THE CITY'S ENVIRONMENTAL CONSULTANT WILL OBTAIN ADDITIONAL SOIL TESTING PRIOR TO CONSTRUCTION AND SEEK A CONTAINED OUT DETERMINATION FOR THE SOIL. IF A CONTAINED OUT DETERMINATION IS RECEIVED AND THE EXCAVATED SOIL IS NO LONGER DETERMINED TO BE IMPACTED AND ALLOWED TO BE REUSED ON SITE, THE CONTRACTOR SHALL UTILIZE THE SOIL AS COMMON BACKFILL AS MUCH AS POSSIBLE. REUSE OF EXCAVATED SOIL AS COMMON BACKFILL SHALL

BE SUBSIDIARY TO THE WORK.

8. THE ESTIMATED QUANTITIES FOR ITEMS 203.35, 209.1, AND 1009.31 ASSUME ALL SOIL EXCAVATED BELOW THE SEASONAL HIGH GROUNDWATER TABLE IS PCE IMPACTED SOIL. NO ADJUSTMENTS TO BID ITEM PRICING WILL BE CONSIDERED FOR THESE ITEMS SHOULD THE ACTUAL MEASURED QUANTITIES DIFFER FROM THE ESTIMATED QUANTITIES.

9. PRIOR TO COMPLETING ANY EXCAVATION OR PUMPING OF GROUNDWATER, THE CONTRACTOR SHALL SUBMIT A PROJECT OPERATIONS PLAN FOR APPROVAL. ALL COSTS ASSOCIATED WITH THE DEVELOPMENT OF THE PROJECT OPERATIONS

PLAN SHALL BE INCLUDED IN ITEM 697.31.

10. THE CONTRACTOR SHALL AVOID IMPACTING EXISTING ENVIRONMENTAL MONITORING WELLS LOCATED ON THE WEST SIDE OF BEAVER BROOK. IT IS THE CONTRACTOR'S RESPONSIBILITY TO IDENTIFY IMPACTED MONITORING WELLS PRIOR TO EXCAVATION, AND NOTIFY THE ENGINEER. FOR APPROXIMATE LOCATION OF MONITORING WELLS, SEE THE APPENDICES INCLUDED IN THE SOIL AND GROUNDWATER MANAGEMENT PLAN. MONITORING WELLS LOCATED ON 43 GEORGE ST. HAVE THE POTENTIAL TO BE IMPACTED BY UTILITY TRENCHING. IF IMPACTED, THE MONITORING WELL SHALL BE

DECOMMISSIONED IN ACCORDANCE WITH ITEM 662.282.

11. MONITORING WELLS COMPLETELY REMOVED BY THE WORK WILL NOT REQUIRE DECOMMISSIONING UNDER ITEM 662.282, AND SHALL BE REMOVED UNDER THE APPLICABLE EXCAVATION ITEM.

BYDESCRIPTIONDATEREV

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CONSTRUCTION DOCUMENTS

CITY OF KEENE

KEENE, NEW HAMPSHIRE

PROJECT NOTES

(SHEET 1 OF 2)

SLM

RLJ

SIW

18820.00

AUGUST 2025

PN-01

2 30

GEORGE STREET BRIDGE REPLACEMENT

UTILITY NOTES:

1. ALL UNDERGROUND UTILITIES AS SHOWN WERE COMPILED USING FIELD SURVEY INFORMATION AND AVAILABLE RECORD

INFORMATION.

2. RECORD UTILITY INFORMATION FROM THE VARIOUS UTILITY COMPANIES AND PUBLIC AGENCIES, ARE APPROXIMATE ONLY AND

ACTUAL LOCATIONS MUST BE DETERMINED IN THE FIELD.

3. ALL UTILITY COMPANIES, PUBLIC AND PRIVATE MUST BE NOTIFIED, INCLUDING THOSE IN CONTROL OF UTILITIES NOT SHOWN ON THIS PLAN, PRIOR TO DESIGNING, EXCAVATING, BLASTING, INSTALLING, BACKFILLING, GRADING, PAVEMENT RESTORING OR REPAVING.

4. THE LOCATION OF EXISTING PIPES OR OTHER UNDERGROUND STRUCTURES OR PROPERTY LINES ARE NOT WARRANTED TO BE EXACT, NOR IS IT WARRANTED THAT ALL UNDERGROUND PIPES OR STRUCTURES ARE SHOWN. THE CONTRACTOR SHALL CALL "DIG SAFE" (1-888-344-7233) 72 HOURS (EXCLUDING SATURDAYS, SUNDAYS AND HOLIDAYS) PRIOR TO ANY EXCAVATION TO OBTAIN

ACCURATE UTILITY LOCATIONS.

5. INVERTS SHOWN ON PLAN ARE NOT GUARANTEED TO BE ACCURATE. DUE TO THE LIMITATIONS OF FIELD OBSERVATION AND SURVEY TECHNIQUES THE INVERTS ARE SHOWN AS APPROXIMATE ONLY AND SHALL NOT BE WARRANTED TO BE CORRECT. ADDITIONAL FIELD INVESTIGATION IS NECESSARY WHERE ACCURATE MEASUREMENTS ARE REQUIRED FOR DESIGN OF CRITICAL AREAS.

6. THE EXISTING CONDITIONS PLAN IS TO BE USED FOR THE SPECIFIED PROJECT ONLY AND IS NOT WARRANTED TO BE COMPLETE FOR

ANY OTHER FUTURE PROJECTS.

7. THE INFORMATION SHOWN ON THE DRAWINGS CONCERNING TYPE AND LOCATION OF UNDERGROUND UTILITIES IS NOT GUARANTEED TO BE ACCURATE OR ALL INCLUSIVE. THE CONTRACTOR SHALL BE RESPONSIBLE FOR MAKING THEIR OWN DETERMINATIONS AS TO THE TYPE AND LOCATION OF UNDERGROUND UTILITIES AS MAY BE NECESSARY TO AVOID DAMAGE THERETO. DAMAGE TO EXISTING UTILITIES CAUSED BY THE CONTRACTOR'S OPERATIONS SHALL BE PROMPTLY REPAIRED BY THE CONTRACTOR WITH ALL ADDITIONAL

COSTS BORNE BY THE CONTRACTOR, AND TO THE SATISFACTION OF THE ENGINEER.

8. THE SUBSURFACE INFORMATION, AS PROVIDED, WAS OBTAINED FOR DESIGN PURPOSES AND MAY NOT BE A COMPLETE REPRESENTATION OF ACTUAL CONDITIONS FOR THE PROJECT CONSTRUCTION. RISKS RESULTING FROM USE OR INTERPRETATION OF THE INFORMATION RELEVANT TO UNDERGROUND UTILITIES AND SOIL ELEVATIONS SHALL BE BORNE BY THE CONTRACTOR.

9. PRIOR TO BEGINNING ANY WORK ON A UTILITY LINE, THE CONTRACTOR SHALL BE RESPONSIBLE FOR CONTACTING AND RENDERING THE REQUIRED NOTICE (i.e. AT LEAST 72 HOURS) TO ALL PUBLIC/PRIVATE UTILITIES (i.e. WATER, SEWER, ELECTRIC, DATA/TELEPHONE, ETC.), AND TO ALL OTHER LOCAL, STATE OR FEDERAL AGENCIES, AS WELL AS TO THE OWNER OF MUNICIPAL AND PRIVATE UTILITIES.

NO WORK SHALL COMMENCE UNTIL THE PUBLIC/PRIVATE UTILITIES PROVIDE PROPER AUTHORIZATION.

10. ACTIVE WATER VALVES AND HYDRANTS WILL BE OPENED/CLOSED BY ONLY MUNICIPAL UTILITY PERSONNEL, UNLESS AUTHORIZED BY THE MUNICIPAL UTILITY IN WRITING. THE CONTRACTOR SHALL CONTACT THE MUNICIPAL UTILITY WITH THE REQUIRED MINIMUM

NOTICE (I.E. AT LEAST 48 HOURS) PRIOR TO NEEDING A WATER VALVE OPENING/CLOSURE.

11. THE CONTRACTOR SHALL COORDINATE ALL UTILITY CONSTRUCTION WITH OTHER UTILITY COMPANIES AS REQUIRED TO ALLOW FOR A

COMPLETE INSTALLATION.

12. THE CONTRACTOR WILL FOLLOW PROPER TESTING AND DISINFECTION PROCEDURES FOR NEW WATER MAIN INSTALLATION. CLOSE COORDINATION WITH THE CITY OF KEENE UTILITY PERSONNEL IS REQUIRED. FOLLOWING WATER MAIN DISINFECTION, CONTRACTOR MUST APPLY FOR A NO-FEE APPLICATION FROM THE PUBLIC WORKS DEPARTMENT TO DISCHARGE SUPER-CHLORINATED WATER TO THE CITY'S SANITARY SEWER SYSTEM. THIS APPLICATION REQUIRES AN ESTIMATE OF THE LOCATION, VOLUME, CONCENTRATION, AND DURATION OF DISCHARGE.

13. THE CONTRACTOR WILL BE RESPONSIBLE FOR PLACING DOOR PLACARDS FOR ANY WATER SERVICE INTERRUPTION RESULTING FROM THE WATER MAIN AND SERVICE WORK. THESE MUST BE DISTRIBUTED AT LEAST 3 WORKING DAYS IN ADVANCE OF ANY OUTAGE. THE BUSINESS LOCATED AT 9 GIFFIN STREET IS A HEAVY INDUSTRIAL WATER USER. THE SERVICE FOR THIS BUSINESS IS LOCATED WITHIN THE LIKELY SHUTDOWN ZONE REQUIRED FOR THE PROJECT. CLOSE COORDINATION WILL BE REQUIRED TO SCHEDULE THE WORK IN A

FASHION TO MINIMIZE IMPACTS TO THIS USER.

14. FINAL PAYMENT FOR ALL UTILITY REPLACEMENT ITEMS WILL BE CONTINGENT ON THE RECEIPT AND VERIFICATION OF ALL TEST REPORTS, INCLUDING PRESSURE DISINFECTION, VACUUM LEAKAGE, VIDEO INSPECTION, AMONG OTHERS AS REQUIRED.

15. SEWER BYPASS PUMPING TO BE INCIDENTAL TO 8" PVC SEWER PIPE, ITEM 612.61508.

16. ALL SEWER MANHOLE COVERS SHALL BE 30" DIAMETER AND LABELED "SEWER".

17. ALL DRAIN MANHOLE COVERS SHALL BE 30" DIAMETER AND LABELED "DRAIN".

18. ANY CUT OR TEMPORARY CONNECTION FOR BYPASS PUMPING OF ASBESTOS-CEMENT PIPES SHALL BE PERFORMED BY LICENSED

SUBCONTRACTORS WITH APPROPRIATE STATE PERMITS.

19. ALL UTILITY STRUCTURES (MANHOLES, GATE VALVE BOXES, ETC.) SHALL BE SET A MINIMUM OF 1/8" AND A MAXIMUM OF 1/4" BELOW

PAVEMENT SURFACE.

20. ALL CONTRACTOR EQUIPMENT, INCLUDING CRANES AND RIGGING, MUST MAINTAIN A MINIMUM 10-FOOT OFFSET FROM ACTIVE POWER

LINES AT ALL TIMES.

21. ANY REQUESTED SERVICE DISRUPTIONS MUST BE COORDINATED DIRECTLY BETWEEN THE CONTRACTOR AND EVERSOURCE.

EXISTING UTILITY INFORMATION

ITEM NO. ITEM DESCRIPTION UNIT TOTAL

QUANTITY

201.1 CLEARING AND GRUBBING (F) A 0.5

201.882 INVASIVE SPECIES CONTROL TYPE II SY 250

202.201 DEMOLISHING BUILDINGS U 1

202.202 DEMOLISHING BUILDINGS U 1

202.41 REMOVAL OF EXISTING PIPE 0-24" DIAMETER LF 540

202.43 REMOVAL AND DISPOSAL OF ASBESTOS (ACM) PIPE, 0-24" DIAMETER LF 25

202.5 REMOVAL OF CATCH BASINS, DROP INLETS, AND MANHOLES EA 6

202.8 REMOVAL OF FENCE LF 270

203.1 COMMON EXCAVATION CY 860

203.2 ROCK EXCAVATION CY 50

203.35 HANDLING OF PCE-IMPACTED SOILS CY 520

203.6 EMBANKMENT-IN-PLACE (F) CY 60

206.19 COMMON STRUCTURE EXCAVATION EXPLORATORY CY 50

207.3 UNCLASSIFIED CHANNEL EXCAVATION CY 440

209.1 GRANULAR BACKFILL CY 220

209.201 GRANULAR BACKFILL (BRIDGE) (F) CY 413

214. FINE GRADING U 1

304.2 GRAVEL (F) CY 370

304.3 CRUSHED GRAVEL (F) CY 300

304.6 CRUSHED STONE (VERY COARSE) CY 200

403.11023 HBP-3/4" BINDER MIX, MACHINE METHOD TON 130

403.11043 HBP-1/2" SURFACE MIX, MACHINE METHOD TON 100

403.12 HOT BITUMINOUS PAVEMENT, HAND METHOD TON 20

403.21053 HBP-3/8" MIX, MACHINE METHOD (BRIDGE BASE) TON 10

410.22 ASPHALT EMULSION FOR TACK COAT GAL 53

417. COLD PLANING BITUMINOUS SURFACES SY 180

502 REMOVAL OF EXISTING BRIDGE STRUCTURE U 1

503.101 WATER DIVERSION STRUCTURE U 1

503.201 COFFERDAMS U 1

503.202 COFFERDAMS U 1

504.1 COMMON BRIDGE EXCAVATION (F) CY 784

504.2 ROCK BRIDGE EXCAVATION CY 10

508 STRUCTURAL FILL CY 70

520.0302 CONCRETE CLASS AA APPROACH SLABS (QC/QA) (F) CY 22

520.7002 CONCRETE BRIDGE DECK (QC/QA) (F) CY 10

529.00401 PRECAST CONCRETE FRAME U 1

529.8 PRECAST CONCRETE HEADWALL U 2

534.3 WATER REPELLENT (SILANE/SILOXANE) GAL 10

538.2 BARRIER MEMBRANE, PEEL AND STICK - VERTICAL SURFACES (F) SY 53

538.5 BARRIER MEMBRANE, HEAT WELDED (F) SY 84

544.31 REINFORCING STEEL, EPOXY COATED (CONTRACTOR DETAILED) LB 2,500

544.7 SYNTHETIC FIBER REINFORCEMENT (F) LB 154

559.41 ASPHALTIC PLUG FOR CRACK CONTROL (F) LF 52

563.23 BRIDGE RAIL T3 LF 25

563.24 BRIDGE RAIL T4 LF 25

565.2301 BRIDGE APPROACH RAIL T3 (FULL HEIGHT) LF 32

565.2401 BRIDGE APPROACH RAIL T4 (FULL HEIGHT) LF 27

583.3 RIPRAP, CLASS III CY 310

584 ROCK FILLED GALVANIZED WIRE MESH BOXES CY 140

585.3401 SIMULATED STREAMBED MATERIAL CY 85

593.221 GEOTEXTILE; SEPARATION CL.2, NON-WOVEN SY 110

593.411 GEOTEXTILE; PERM CONTROL CL.1, NON-WOVEN SY 975

603.80215 15" PLASTIC PIPE (SMOOTH INTERIOR) LF 280

603.80218 18" PLASTIC PIPE (SMOOTH INTERIOR) LF 190

604.0007 POLYETHYLENE LINER EA 5

604.124 CATCH BASINS TYPE B, 4-FOOT DIAMETER U 5

604.314 SEWER MANHOLES, 4-FOOT DIAMETER U 5

604.324 DRAINAGE MANHOLES, 4-FOOT DIAMETER U 1

606.417 PORTABLE CONCRETE BARRIER FOR TRAFFIC CONTROL LF 250

607.5160 WOOD FENCE (STOCKADE), 6'-0" HIGH LF 60

607.5340 WOOD FENCE (SPLIT RAIL), 4'-0" HIGH LF 80

608.34 4" REINFORCED CONCRETE SIDEWALK (F) SY 170

608.38 8" REINFORCED CONCRETE SIDEWALK (F) SY 20

609.01 STRAIGHT GRANITE CURB LF 390

611.05208 8" CEMENT LINED DUCTILE IRON WATER PIPE, CL 52 LF 40

611.25208 8" HDPE WATER PIPE LF 100

611.50010 1" COPPER SERVICE PIPE LF 130

611.5101 1" CORPORATION STOP EA 4

611.52010 1" CURB STOP WITH BOX EA 4

611.70008 8" FITTING EA 4

611.71008 8" GATE VALVE WITH BOX EA 2

611.74206 8"x6" REDUCER EA 2

611.77 CHLORINE INJECTION TAP EA 2

612.61504 4" PVC SEWER PIPE (SDR 35) LF 75

612.61508 8" PVC SEWER PIPE (SDR 35) LF 250

612.61512 12" PVC SEWER PIPE (SDR 35) LF 40

612.81643 8"X6" PVC SEWER SERVICE WYE EA 5

612.82606 6" PVC SEWER SERVICE CLEANOUT EA 5

618.7 FLAGGERS HR 100

619.1 MAINTENANCE OF TRAFFIC U 1

619.25 PORTABLE CHANGEABLE MESSAGE SIGN U 2

628.2 SAWED BITUMINOUS PAVEMENT LF 120

632.0104 RETROREFLECTIVE PAINT PAVE. MARKING, 4" LINE LF 2,300

645.3 EROSION STONE TON 10

645.7 STORM WATER POLLUTION PREVENTION PLAN U 1

645.71 MONITORING SWPPP AND EROSION AND SEDIMENT CONTROLS HR 60

645.73 STREAM DIVERSION PLAN U 1

646.51 TURF ESTABLISHMENT WITH MULCH, TACKIFIERS AND LOAM SY 770

650.2 LANDSCAPING U 1

662.282 DECOMMISSION MONITORING WELL U 1

692 MOBILIZATION U 1

697.11 INVASIVE SPECIES CONTROL AND MANAGEMENT PLAN U 1

697.31 PROJECT OPERATIONS PLAN U 1

698.13 FIELD OFFICE TYPE C MON 6

699. MISCELLANEOUS TEMPORARY EROSION AND SEDIMENT CONTROL $ 10,000

1009.21 TREATMENT OR DISPOSAL OF CONTAMINATED GROUNDWATER (FRAC TANK) MON 4

1009.211 TREATMENT OR DISPOSAL OF CONTAMINATED GROUNDWATER (TREATMENT SYSTEM) MON 2

1009.212 TREATMENT OR DISPOSAL OF CONTAMINATED GROUNDWATER (ANALYTICAL TESTING) EA 8

1009.31 TRANSPORTATION AND DISPOSAL - PCE IMPACTED SOIL TON 780

1010.15 FUEL ADJUSTMENT $ 20,000

1010.41 QUALITY CONTROL QUALITY ASSURANCE (QC/QA) FOR CONCRETE $ 3,000

CONSTRUCTION DOCUMENTS

CITY OF KEENE

KEENE, NEW HAMPSHIRE

PROJECT NOTES

(SHEET 2 OF 2)

AS SHOWN

SLM

RLJ

SIW

18820.00

AUGUST 2025

PN-02

3 30

GEORGE STREET BRIDGE REPLACEMENT

BYDESCRIPTIONDATEREV

DATE:

PROJECT:

DESIGN:

CHECKED:

DRAWN:

SCALE:

OF

53 REGIONAL DRIVE

CONCORD, NEW HAMPSHIRE 03301

M :\1

.0

KE

EN

E

- G

EO

R

G E

ST

B

R

ID

G E\

D R

AW

\D

R

AW

IN

G

S\

SH

EE

T

FI

LE

S\

0.

-N

O

TE

.D W

G

BE

AV

ER

B

R O

O K

GEORGE STREET

S63° 49' 00.50"E 99.274

N86° 58' 35.33"E 281.378

L=169.75

Δ=29°12'24"R=333.00

10+00

11+00

12+00

13+00 14+00 15+00 15+50

PC

: 1

0+

.2

PT

: 1

2+

.0

S S

S

S S

W W

SMH-400

SMH-401

SMH-402

SMH-403

CB-101

CB-102

CB-202

CB-201

CB-200

37 LF OF 12" PVC @ 0.50%

132 LF OF 8" PVC @ 0.84%

102 LF OF 8" PVC @ 0.40%

68 LF OF 18" HDPE @ 0.40%

24 LF OF 18" HDPE @ 0.40%

97 LF OF 18" HDPE @ 0.40%

81 LF OF 15"

HDPE @ 0.50%

20 LF OF 15"

HDPE @ 2.62%

W

SMH-301

47 LF OF 15" HDPE

@ 1.53%

126 LF OF 15" HDPE @ 1.49%

DMH-100

532-74 N/F

PEOPLES LINEN

SERVICES, LLC

691/236

535-25 N/F

PEOPLES LINEN

SERVICES, LLC

1454/540

534-12 N/F

HOF, PHILIP & PAMELA

REVOCABLE TRUST

3017/140

534-11 N/F

FLYNN, JANET & JOHN

3179/1334

534-14 N/F

AVERY. SKIP & NOREEN

1908/913

534-13 N/F

PICKERING, CHERYL

2526/871

PROPOSED 8" SEWER MAIN

(TYP) ITEM 612.61508

TR

AV

EL

LA

N E

.5

.5

TR

AV

EL

LA

NE

PROPOSED

CATCH BASIN (TYP)

ITEM 604.124

PROPOSED

18" DRAINAGE PIPE

ITEM 603.80218

PROPOSED SEWER

MANHOLE

(TYP)

ITEM 604.314

C CONSTRUCTION (TYP)L LIMIT OF WORK

LIMIT 1 12" MILL

AND OVERLAY

STA. 14+55.00

PROPOSED 8"

WATER LINE

ITEM 611.25208

PROPOSED 15"

DRAINAGE PIPE

ITEM 603.80215

TR

AV

EL

LA

NE

RECONSTRUCT

SEWER SERVICE ITEMS

612.61504, 612.81643 & 612.82606

TR

AV

EL

LA

N E

CONNECT TO EXISTING

CATCH BASIN

RECONSTRUCT

WATER SERVICE

ITEMS 611.50010,

611.51010, AND

611.52010

PROPOSED 8" GATE

VALVE ITEM 611.71008

PROPOSED 8" GATE

VALVE ITEM 611.71008

RECONSTRUCT

WATER SERVICE

ITEMS 611.50010,

611.51010, AND

611.52010

PROPOSED 12"

SEWER MAIN

ITEM 612.61512

RECONSTRUCT

SEWER SERVICE

ITEMS 612.61504,

612.81643 & 612.82606

RECONSTRUCT

SEWER SERVICE

ITEMS 612.61504,

612.81643 & 612.82606

RECONSTRUCT

WATER SERVICE

ITEMS 611.50010,

611.51010, AND

611.52010

STRAIGHT GRANITE CURB

ITEM 609.01

4" CONCRETE SIDEWALK

ITEM 608.34

PROPOSED 15"

PRECAST HEADWALL (SEE

NHDOT STANDARD HW-1

FOR P.C.-1) ITEM 529.8

INVERT: 480.90' PROPOSED 18" PRECAST

HEADWALL (SEE NHDOT

STANDARD HW-1 FOR P.C.-1)

ITEM 529.8

INVERT: 480.90

PROPOSED 8" SEWER MAIN

(TYP.) ITEM 612.61508

60 LF OF EXISTING FENCE

TO BE REMOVED AND

REPLACED ITEM 202.8

DECK TO BE REMOVED

AND DISCARDED

ITEM 202.202

REPLACE SEWER SERVICE

ITEMS 612.61504, 612.81643 AND 612.82606

IF IMPACTED BY INSTALLATION OF

SERVICE FOR 44 GEORGE STREET

RECONSTRUCT WATER SERVICE

ITEMS 611.50010, 611.51010, AND 611.52010

PROPOSED 15"

DRAINAGE PIPE

ITEM 603.80215

PROPOSED 8" WATER

MAIN, 8"x6" REDUCER, AND MJ COUPLING

ITEMS 611.05208 &

611.74206

PROPOSED 8" WATER

MAIN AND 8"x6"

REDUCER

ITEMS 611.05208 &

611.74206

8" CONCRETE SIDEWALK

ITEM 608.38

HBP-HAND METHOD (ITEM 403.12)

BEGIN CURB

STA. 10+64.5, 10.5 LT

END CURB

STA. 13+70.7, 12.0 LT

BEGIN CURB

STA. 11+81.4, 11.0 RT

END CURB

STA. 13+10.3, 12.0 RT

LIMIT OF FULL DEPTH

RECONSTRUCTION

10+50.00

LIMIT OF FULL

DEPTH

RECONSTRUCTION

14+50.00

LIMIT OF WORK

LIMIT 1 12 " MILL & OVERLAY

STA. 10+05.00

SHED TO BE REMOVED

AND DISCARDED

ITEM 202.201

CLEAR AND GRUB FOR

CONTRACTOR STAGING AREA

AREA = 1100 SF

REMOVE AND REPLACE 78 LF

EXISTING SPLIT RAIL FENCE.

ITEMS 202.8 AND 607.5340

REMOVE AND REPLACE 30

LF 6' STOCKADE FENCE

ITEM 202.8 AND 607.5160

CLEAR AND GRUB

AREA = 320 SF

ITEM 201.1

CLEAR AND GRUB

AREA = 545 SF

ITEM 201.1

CLEAR AND GRUB

AREA = 940 SF

ITEM 201.1

CLEAR AND GRUB

AREA = 820 SF

ITEM 201.1

10 LF OF 8" PVC @ 0.50%

RECONNECT TO EXISTING SEWER

PROPOSED

DRAINAGE MANHOLE (TYP)

ITEM 604.324

RESET MAILBOX ON SPLIT

RAIL FENCE. SUBSIDIARY

TO ITEM 607.5340

REMOVAL OF

MONITORING WELL

INCLUDED IN ITEM

504.1

REPLACE EXISTING

ARBORVITAES, SEE

PLAN SHEET RW-05.

N 162693.97 E 822041.60

SEWER STRUCTURE TABLE

STRUCTURE

SMH-301

SMH-400

SMH-401

SMH-402

SMH-403

RIM

487.44

487.20

487.52

487.93

482.59

INV(S) IN

483.68 (N)

482.96 (E)

483.27 (N)

481.28 (E)

481.07 (NE)

INV OUT

483.19

483.68

482.39

481.26

480.97

DRAIN STRUCTURE TABLE

STRUCTURE

CB-101

CB-102

CB-200

CB-201

CB-202

DMH-100

RIM

487.21

487.50

487.38

487.18

487.18

487.62

INV(S) IN

483.10

481.40

483.22

482.95

482.85

483.92

INV OUT

481.93

481.27

483.22

482.95

482.85

483.82

0 20 40 60 FT

BYDESCRIPTIONDATEREV

DATE:

PROJECT:

DESIGN:

CHECKED:

DRAWN:

SCALE:

OF

53 REGIONAL DRIVE

CONCORD, NEW HAMPSHIRE 03301

M :\1

.0

KE

EN

E

- G

EO

R

G E

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B

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ID

G E\

D R

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CONSTRUCTION DOCUMENTS

CITY OF KEENE

KEENE, NEW HAMPSHIRE

ROADWAY AND UTILITY PLAN

AS SHOWN

SLM

BRC

MKM

18820.00

AUGUST 2025

RW-01

4 30

PV - (1)

9.

10+25 10+50

8.

8.

8.

8.

10+75 11+00

8.

8.

7.

7.

11+25 11+50

7.

7.

7.

7.

11+75 12+00

7.

7.

8.

7.

12+25 12+50

8.

8.

8.

8.

12+75 13+00

8.

8.

7.

7.

13+25 13+50

7.

7.

7.

7.

13+75 14+00

7.

7.

7.

7.

14+25 14+50

7.

7.

7.

14+75 15+00

8.

8.

15+25 15+50 15+75

2.45% -1.75% 0.52%

-1.60%

-0.89%

GRADE BREAK STA = 10+50.00

ELEV = 488.75

GRADE BREAK STA = 14+50.00

ELEV = 487.83

PVI STA: 11+95.00

PVI ELEV: 487.24

K: 14.96

LVC: 50.00

BV

C

S:

1+

.0

BV

C

E:

.4

EV

C

S:

2+

.0

EV

C

E:

.8

LOW PT. STA: 11+83.35

LOW PT ELEV: 487.40

PVI STA: 13+46.00

PVI ELEV: 487.28

K: 35.20

LVC: 80.00

BV

C

S:

3+

.0

BV

C

E:

.9

EV

C

S:

3+

.0

EV

C

E:

.4

LOW PT. STA: 13+67.61

LOW PT ELEV: 487.45

PVI STA: 10+80.00

PVI ELEV: 488.27

K: 70.64

LVC: 50.00

BV

C

S:

0+

.0

BV

C

E:

.6

EV

C

S:

1+

.0

EV

C

E:

.0

PVI STA: 12+59.00

PVI ELEV: 488.81

K: 9.52

LVC: 40.00

BV

C

S:

2+

.0

BV

C

E:

.3

EV

C

S:

2+

.0

EV

C

E:

.4

HIGH PT. STA: 12+62.33

HIGH PT ELEV: 488.60

GV

GV

PROPOSED 8"

WATER MAIN

(TYP.)

PROPOSED 8" GATE

VALVE AND 8"x6"

REDUCER (TYP.)

PROPOSED 1" CORPORATION

VALVE, 56 GEORGE ST.

PROPOSED 1" CORPORATION

VALVE, 44 GEORGE ST.

EXISTING 6"

WATER MAIN

(TYP.)

PROPOSED 8"

FUSED HDPE 45°

FITTING (TYP.)

PROPOSED CAST IN PLACE

THRUST BLOCK COLLAR (TYP.)

BYDESCRIPTIONDATEREV

DATE:

PROJECT:

DESIGN:

CHECKED:

DRAWN:

SCALE:

OF

53 REGIONAL DRIVE

CONCORD, NEW HAMPSHIRE 03301

M :\1

.0

KE

EN

E

- G

EO

R

G E

ST

B

R

ID

G E\

D R

AW

\D

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IN

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S\

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S\

0.

-P

R O

F.

D

W G

GEORGE STREET PROFILE

SCALE: 1" = 20' (HORIZONTAL)

1" = 5' (VERTICAL)

CONSTRUCTION DOCUMENTS

CITY OF KEENE

KEENE, NEW HAMPSHIRE

ROADWAY PROFILE

AS SHOWN

SLM

BRC

MKM

18820.00

AUGUST 2025

RW-02

5 30

4" FIBER-REINFORCED CONCRETE

SIDEWALK WITH 8" AT DRIVEWAY

CROSSINGS AND RAMPS

(ITEM 608.34 & 608.38)

PROP. GRANITE CURB

7" REVEAL

(ITEM 609.01) (TYP)

HOT MIX ASPHALT:

1 12" HBP-1/2" SURFACE MIX,

MACHINE METHOD

(ITEM 403.11043

2 12" HBP-3/4" BINDER MIX,

MACHINE METHOD

(ITEM 403.11023)

8" CRUSHED GRAVEL (ITEM 304.3)

14" GRAVEL (ITEM 304.2)

12" CRUSHED GRAVEL

(ITEM 304.3)

TYPICAL PROPOSED ROADWAY APPROACH SECTION

SCALE: 1/2" = 1'-0"

C CONSTRUCTIONL

2%

12'-0" AND VARIES

TRAVEL LANE

5'-6"

SIDEWALK

1.6% (MAX)

0.5% (MIN)

2%

PGL & CROWN LINE

12'-0" AND VARIES

TRAVEL LANE

1'-6"

CRUSHED GRAVEL (ITEM 304.3)

6" LOAM AND SEED6" LOAM AND SEED

BYDESCRIPTIONDATEREV

DATE:

PROJECT:

DESIGN:

CHECKED:

DRAWN:

SCALE:

OF

53 REGIONAL DRIVE

CONCORD, NEW HAMPSHIRE 03301

M :\1

.0

KE

EN

E

- G

EO

R

G E

ST

B

R

ID

G E\

D R

AW

\D

R

AW

IN

G

S\

SH

EE

T

FI

LE

S\

0.

-T

SE

C

.D W

G

CONSTRUCTION DOCUMENTS

CITY OF KEENE

KEENE, NEW HAMPSHIRE

ROADWAY TYPICAL SECTION &

DETAILS

AS SHOWN

SLM

BRC

MKM

18820.00

AUGUST 2025

RW-03

6 30

GEORGE STREET

KN

IG

H

T STR

EET

GIFFIN STREET

SULLIVAN STREET

W

ASHIN

GTO

N S

TR

EET

WRIGHT STREET

WOODBURY STREET

FO

X

AV

EN

UE

M

AY AVEN

U E

BARCOMB STREET

CHASE PLACE

BURDETT STREET

WILFORD STREET

CHAPEL DRIVE

PEDESTRIAN DETOUR

BRIDGE LOCATION

BYDESCRIPTIONDATEREV

DATE:

PROJECT:

DESIGN:

CHECKED:

DRAWN:

SCALE:

OF

53 REGIONAL DRIVE

CONCORD, NEW HAMPSHIRE 03301

M :\1

.0

KE

EN

E

- G

EO

R

G E

ST

B

R

ID

G E\

D R

AW

\D

R

AW

IN

G

S\

SH

EE

T

FI

LE

S\

0.

-D

ET

R

.D W

G

GEORGE STREET

DETOUR

AHEAD

BRIDGE

CLOSED

AHEAD

GEORGE STREET

GEORGE STREET

GEORGE STREET

GEORGE STREET

SIDEWALK CLOSED

CROSS HERE

AHEAD

DETOUR

DETOUR

DETOUR

SIDEWALK

CLOSED

DETOUR

SCALE

0 100 200 300 FT

CONSTRUCTION DOCUMENTS

CITY OF KEENE

KEENE, NEW HAMPSHIRE

DETOUR PLAN

AS SHOWN

SLM

BRC

MKM

18820.00

AUGUST 2025

RW-04

7 30

GEORGE STREET BRIDGE REPLACEMENT

ROAD CLOSED

THRU TRAFFIC

TO

BRIDGE

CLOSED

LEGEND

BICYCLE AND PEDESTRIAN DETOUR

VEHICULAR DETOUR

10+00

11+00

12+00

13+00 14+00 15+00 15+50

S S

S

S S

W W

W

BE

AV

ER

B

R O

O K

GEORGE STREET

EXISTING RIGHT-OF-WAY

C CONSTRUCTION & PGL

GEORGE STREET

L

EXISTING RIGHT-OF-WAY

532-74 N/F

PEOPLES LINEN

SERVICES, LLC

691/236

534-12 N/F

HOF, PHILIP & PAMELA

REVOCABLE TRUST

3017/140

534-11 N/F

FLYNN, JANET & JOHN

3179/1334

534-14 N/F

AVERY. SKIP & NOREEN

1908/913

534-13 N/F

PICKERING, CHERYL

2526/871

535-25 N/F

PEOPLES LINEN

SERVICES, LLC

1454/540

EXISTING RIGHT-OF-WAY

EXISTING RIGHT-OF-WAY

AP

PR

O X.

E

XI

ST

IN

G

PR

O

PE

R

TY

L

IN

E

AP

PR

O X.

E

XI

ST

IN

G

PR

O

PE

R

TY

L

IN

E

AP

PR

O X.

E

XI

ST

IN

G

PR

O

PE

R

TY

L

IN

E

AP

PR

O X.

E

XI

ST

IN

G

PR

O

PE

R

TY

L

IN

E

EX

IS

TI

N

G E

AS

EM

EN

T

EX

IS

TI

N

G

SE

W

ER

E

AS

EM

EN

T

PERMANENT

CHANNEL / DRAINAGE

EASEMENT

PERMANENT

CHANNEL

EASEMENT

PERMANENT

CHANNEL / SEWER

EASEMENT

PERMANENT

CHANNEL / DRAINAGE

EASEMENT

EXISTING

SEWER

EASEMENT

DECK TO BE REMOVED

AND DISCARDED

EARTHEN BERM AND

ARBORVITAE TO BE REPLACED

AND EXTENDED WITH MATURE

ARBORVITAE AT COMPLETION

OF PROJECT

ITEMS 203.6 AND 650.2

INSTALL MATURE

ARBORVITAE SCREENING AT

COMPLETION OF PROJECT

ITEM 650.2

ARBORVITAE TO BE

REPLACED WITH MATURE

ARBORVITAE AT COMPLETION

OF PROJECT ITEM 650.2

STA:12+95.40

OFF:27.49'R

STA:12+75.09

OFF:74.63'R

STA:12+65.53

OFF:76.19'RSTA:12+49.00

OFF:70.79'R

STA:12+47.29

OFF:77.75'R

STA:12+35.30

OFF:74.52'R

STA:12+32.55

OFF:44.99'R

STA:12+34.94

OFF:34.22'R

STA:12+04.24

OFF:22.83'R

STA:12+45.79

OFF:22.91'L

STA:12+45.43

OFF:27.90'L

STA:12+47.72

OFF:28.03'L

STA:12+51.57

OFF:31.34'L

STA:12+58.69

OFF:51.00'L

STA:12+59.29

OFF:56.01'L

STA:12+59.82

OFF:83.15'L

STA:12+79.81

OFF:83.24'L STA:12+94.68

OFF:111.51'L

STA:13+10.93

OFF:110.37'L

STA:13+17.70

OFF:23.34'L

TEMPORARY

CONSTRUCTION EASEMENT

TEMPORARY

CONSTRUCTION

EASEMENT

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TPTP

TPTP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

TP

STA:13+74.58

OFF:16.92'R

BYDESCRIPTIONDATEREV

DATE:

PROJECT:

DESIGN:

CHECKED:

DRAWN:

SCALE:

OF

53 REGIONAL DRIVE

CONCORD, NEW HAMPSHIRE 03301

M :\1

.0

KE

EN

E

- G

EO

R

G E

ST

B

R

ID

G E\

D R

AW

\D

R

AW

IN

G

S\

SH

EE

T

FI

LE

S\

0.

-E

AS

E.

D W

G

CONSTRUCTION DOCUMENTS

CITY OF KEENE

KEENE, NEW HAMPSHIRE

EASEMENT AND

LANDSCAPE PLAN

AS SHOWN

SLM

BRC

MKM

18820.00

AUGUST 2025

RW-05

8 30

GEORGE STREET BRIDGE REPLACEMENT

PLANTING SCHEDULE SCALE

0 20 40 60 FT

S

S S

S S

S S

S

S S

S S

S

W W W W

W W

W

S

W W

W

12+00

13+00 14+00

BE

AV

ER

B

R O

O K

GEORGE STREET

EXISTING RIGHT-OF-WAY

C CONSTRUCTION & PGL

GEORGE STREET

L

EXISTING RIGHT-OF-WAY

PROPOSED GABION

RETAINING WALL2'-0" RIPRAP, CLASS III

(ITEM 583.3) (TYP)

B-1

B-2

ENV-1

N 86°58' 35.33" E

LIMIT OF GABION WALL

REMOVAL AND RECONSTRUCTION

1'-0" SIMULATED

STREAMBED MATERIAL

(ITEM 585.3401) OVER

2'-0" RIPRAP, CLASS III

(ITEM 583.3)

COFFERDAMS

(ITEM 503.202)

COFFERDAMS

(ITEM 503.201)

SCALE

0 10 20 30 FT

BYDESCRIPTIONDATEREV

DATE:

PROJECT:

DESIGN:

CHECKED:

DRAWN:

SCALE:

OF

53 REGIONAL DRIVE

CONCORD, NEW HAMPSHIRE 03301

M :\1

.0

KE

EN

E

- G

EO

R

G E

ST

B

R

ID

G E\

D R

AW

\D

R

AW

IN

G

S\

SH

EE

T

FI

LE

S\

0.

-P

LA

N

-S

IT

E.

D

W G

BORING LOCATIONS

NUMBER STATION OFFSET NORTH EAST

B-1 12+28.35 1.86' LT 162618.66 822254.67

B-2

BORING NOTES:

1. BORINGS INDICATED THUS WERE MADE BY S.W. COLE ENGINEERING, INC.

DECEMBER 2022. FIGURES IN THE LEFT HAND BLOWS COLUMN (ON PAGE BR-02)

INDICATE THE NUMBER OF BLOWS REQUIRED TO DRIVE A 4 INCH O.D. STANDARD

SPLIT SPOON SAMPLER 6 INCHES USING A 140 POUND WEIGHT FALLING 30 INCHES.

2. BORINGS ARE FOR DESIGN PURPOSES SHOWING CONDITIONS AT BORING POINTS

ONLY AND DO NOT NECESSARILY INDICATE MATERIAL TO BE ENCOUNTERED

DURING CONSTRUCTION.

3. BORING STATIONS AND OFFSETS ARE MEASURED FROM CENTERLINE

CONSTRUCTION OF GEORGE STREET.

4. FOR BORING RESULTS, SEE BORING LOGS, SHEET BR-02.

ENV-1

13+01.76 13.5' LT 162631.67 822327.17

12+50.00 26.5' LT 162642.00 822276.00

SITE PLAN

SCALE: 1" = 10'

CONSTRUCTION DOCUMENTS

CITY OF KEENE

KEENE, NEW HAMPSHIRE

BRIDGE SITE PLAN

AS SHOWN

SLM

BRC

MKM

18820.00

AUGUST 2025

RW-06

9 30

PROPOSED TYPICAL EMBANKMENT SECTION

(NORTHWEST EMBANKMENT SHOWN, SOUTHEAST AND SOUTHWEST EMBANKMENTS SIMILAR)

SCALE: 1/2" = 1'-0"

EL 481.5 (OHW)

1.5

APPROX.

EXISTING

GROUND

4'-0"

2' -0

PROPOSED

GRADE

APPROX.

EXISTING

STREAMBED

EXISTING WOODEN FENCE

(NW EMBANKMENT ONLY)

1'-0" CRUSHED STONE

(VERY COARSE) (ITEM 304.6)

RIPRAP, CLASS III

(ITEM 583.3)

TWO LAYERS OF GEOTEXTILE,

PERM CONTROL CL 1,

NON-WOVEN (ITEM 593.411)

2'- 0"

UNCLASSIFIED CHANNEL

EXCAVATION (ITEM 207.3)

1'-6"

(TYP)

FINISHED GRADE

(TO MATCH EXISTING GROUND)

(EL 486.5 TO EL 488.0)

1'-0" SIMULATED

STREAMBED MATERIAL

(ITEM 585.3401)

1'-0" CRUSHED STONE

(VERY COARSE)

(ITEM 304.6)

2'-0" RIPRAP, CLASS III

(ITEM 583.3)

EL 481.5 (OHW)

GEOTEXTILE, PERM CONTROL

CL 1, NON-WOVEN (ITEM 593.411)

GRANULAR BACKFILL

(BRIDGE) (F)

(ITEM 209.201)

Q SCOUR

ELEVATION 474.0

ROCK FILLED

GALVANIZED WIRE MESH

BOXES (TYP)

(ITEM 584.)

EXISTING 8" SEWER MAIN

(TO BE REMOVED)

TYPICAL RETAINING WALL SECTION

SCALE: 3/8" = 1'-0"

3'-0" 3'

-0

(T

YP

6°

7'-6"

EL 473.75

PROPOSED 8" SEWER MAIN

(SEE ROADWAY AND UTILITY PLAN

FOR LOCATION AND ADDITIONAL

INFORMATION)

EXISTING GABION RETAINING WALL

(TO BE REMOVED) (FOR LIMITS OF

REMOVAL SEE BRIDGE SITE PLAN)

(ALL COSTS INCLUDED IN ITEM 502.)

TOP OF PROPOSED WALL

(EL 488.00)

EL 480.00

SUITABLE FILL

1'-0" (MIN) STRUCTURAL FILL

(ITEM 508)

1'-0"

(MIN)

LIMITS OF COMMON

BRIDGE EXCAVATION

(F) (ITEM 504.1)

EXISTING CONCRETE FOOTING (TO BE

REMOVED) (FOR LIMITS OF REMOVAL SEE

BRIDGE SITE PLAN, DEPTH UNKNOWN)

(ALL COSTS INCLUDED IN ITEM 502.)

GEOTEXTILE; SEPARATION CL. 2,

NON-WOVEN (ITEM 593.221)

Q EL 487.4150

EL 486.50±

(MATCH EXISTING TOP OF WALL)

TOP OF 1'-0" THICK

SIMULATED STREAMBED

MATERIAL (ITEM 585.3401)

3'-0" THICK ROCK FILLED

GALVANIZED WIRE MESH

BOXES (ITEM 584.)

(TYP)

ROCK FILLED GALVANIZED WIRE BOX RETAINING WALL ELEVATION

SCALE: 3/8" = 1'-0"

TOP OF EXISTING

RETAINING WALL

1'-0" (MIN)

STRUCTURAL FILL

B.O.F. EL 473.00

PRECAST CONCRETE

RIGID FRAME

PRECAST CONCRETE

PEDESTAL WALL

PRECAST CONCRETE

FOOTING

TOP OF PRECAST

CONCRETE WINGWALL

EL 480.00

EL 480.00

EL 482.00

EL 488.00

43'-0" ±

(ROCK FILLED GALVANIZED WIRE MESH BOX RETAINING WALL)

16'-0" ±

BYDESCRIPTIONDATEREV

DATE:

PROJECT:

DESIGN:

CHECKED:

DRAWN:

SCALE:

OF

53 REGIONAL DRIVE

CONCORD, NEW HAMPSHIRE 03301

M :\1

.0

KE

EN

E

- G

EO

R

G E

ST

B

R

ID

G E\

D R

AW

\D

R

AW

IN

G

S\

SH

EE

T

FI

LE

S\

0.

-E

M

BA

N

KM

EN

T-

D

ET

LS

.D

W G

CONSTRUCTION DOCUMENTS

CITY OF KEENE

KEENE, NEW HAMPSHIRE

EMBANKMENT STABILIZATION

DETAILS

AS SHOWN

SLM

BRC

MKM

18820.00

AUGUST 2025

RW-07

10 30

FINISHED GRADE

PAVEMENT

2 SECTION ADJUSTABLE VALVE

BOX W/ CAST IRON COVER.

WATER MAIN

GATE VALVE (OPEN RIGHT)

AWWA STD. 2" SQUARE

OPERATING NUT

5' -6

" M

IN

MECHANICAL

JOINT (TYP)

SET < 1/8" DOWN IN PAVEMENT,

< 1" DOWN IN EARTH.

FLAT STONE OR CONCRETE

BLOCK.

GATE BOX TO BE SET

PLUMB, WITH BOX

CENTERED ON GATE

VALVE.

NOT TO SCALE

WATER SERVICE DETAIL NOT TO SCALE

GATE VALVE DETAIL

WATER MAIN

FINISHED GRADE

PROPOSED

TO METER

EXISTING (TO REMAIN)

1" COPPER SERVICE (MAINTAIN

COVER)

PIPE BEDDING ENVELOPE 6"

AROUND PIPE

NO JOINTS PERMITTED BETWEEN

CORPORATION AND CURB STOP

SLIDING TYPE SERVICE BOX, W/

STATIONARY ROD & PENTA NUT

CAP.

LOCATE BEHIND SIDEWALK OR AS

DIRECTED BY ENGINEER.5'

M

IN

CUT EXISTING SERVICE PIPE AND

CLEAN FOR CONNECTION TO NEW

CURB STOP.

FLAT STONE OR CONCRETE

BLOCK.

1" CORPORATION STOP DIRECT

TAP D.I. PIPE

1" STAINLESS SADDLE

REQUIRED FOR PVC

DETECTABLE WARNING TAPE

OVER SAND ENVELOPE CENTERED

ON PIPE ALIGNMENT

18"MIN.

1" BALL VALVE

CURB STOP,

SIZE TO MATCH EXISTING

SERVICE.

SET IN GRANULAR FILL.

THREADED CAP AND PLUG.

SET < 1/8" DOWN IN PAVEMENT,

< 1" DOWN IN EARTH.

ALL CUTS TO ADJUST LENGTH SHALL

BE MADE AT BURIED END.

LOAM AREA

IN EARTH

FINISHED GRADE

IN ROCK

UTILITY

M

IN

. C O

VE

R

FT

PAVED AREA

6" MIN.

6" COMPACTED LOAM & SEED AGGREGATE BASE COURSES

PAVEMENT

UNDISTURBED SUITABLE MATERIAL OR COMPACTED

BACKFILL

SUITABLE NATIVE MATERIAL

OR IMPORTED GRANULAR FILL

SAW CUT ASPHALT 12" WIDER THAN

TRENCH WIDTH (W)

DETECTABLE WARNING TAPE

24" OVER PIPE WHERE REQUIRED

W = MAXIMUM ALLOWABLE TRENCH PAYMENT WIDTH, WHERE DEFINED.

FOR PIPES LESS THAN OR EQUAL TO 15 INCHES IN DIAMETER, W SHALL BE NO MORE THAN 36 INCHES.

FOR PIPES GREATER THAN 15 INCHES IN DIAMETER, W SHALL BE 24 INCHES PLUS PIPE OUTSIDE DIAMETER.

WATER PIPES WITH LESS THAN 5 FT OF COVER SHALL BE INSULATED WITH 2" THICK POLYSTYRENE INSULATION, CENTERED ON THE PIPE ALIGNMENT. INSULATION SHALL EXTEND THE SAME DISTANCE BEYOND THE OUTER

SURFACE OF PIPE (HORIZONTALLY) AS THE REDUCED AMOUNT OF COVER DEPTH.

WATER PIPES WITH LESS THAN 24" SEPARATION FROM DRAIN STRUCTURES OR DRAIN CULVERTS SHALL BE

INSULATED WITH 2" THICK POLYSTYRENE INSULATION CENTERED ON THE PIPE ALIGNMENT.

SEE TYPICAL ROAD SECTION

12" MIN.

12" IN ROCK

PIPE BEDDING

NOT TO SCALE

WATER AND SEWER TRENCH DETAIL

#4 BAR

4'

1.

2'

NOT TO SCALE

WATER AND SEWER CROSSING DETAIL

NOT TO SCALE

HDPE PIPE TO DUCTILE IRON PIPE CONNECTION DETAIL

1' 1'

.4

.4

4'

NOT TO SCALE

CAST-IN-PLACE THRUST BLOCK DETAIL

20"

1.2'1' 1' .4'.4'

SECTION A-A SECTION B-B

A A B

B

NOT TO SCALE

THRUST BLOCK DETAILS

BYDESCRIPTIONDATEREV

DATE:

PROJECT:

DESIGN:

CHECKED:

DRAWN:

SCALE:

OF

53 REGIONAL DRIVE

CONCORD, NEW HAMPSHIRE 03301

M :\1

.0

KE

EN

E

- G

EO

R

G E

ST

B

R

ID

G E\

D R

AW

\D

R

AW

IN

G

S\

SH

EE

T

FI

LE

S\

0.

-R

D W

Y D

ET

.D

W G

CONSTRUCTION DOCUMENTS

CITY OF KEENE

KEENE, NEW HAMPSHIRE

DETAIL SHEET (1 OF 3)

AS SHOWN

SLM

BRC

MKM

18820.00

AUGUST 2025

RW-08

11 30

AA

B

B

TYPICAL MANHOLE - PLAN VIEW

SECTION "A-A"

SECTION "B-B"

ELASTOMERIC MANHOLE JOINTS

LOCK-JOINT FLEXIBLE MANHOLE SLEEVEKOR-N-SEAL JOINT SLEEVE

A-LOK

NON-SHRINKING MORTAR

PRESS-WEDGE II

RES-SEAL

NOT TO SCALE

SEWER CHANNEL DETAIL

NOT TO SCALE

SEWER CHIMNEY DETAIL

NOT TO SCALE

SEWER SERVICE DETAIL

NOT TO SCALE

SEWER MANHOLE DETAIL

NOT TO SCALE

SEWER PIPE JOINT DETAIL

FL

O

W

SLOPE

SLOPE

SLOPE

45°

SEE SEWER PIPE

JOINT DETAIL

PVC TEE

FERNCO FLEXIBLE

COUPLING OR EQUAL

STAINLESS STEEL STRAPS. SECURE

TO STRUCTURE WITH 2 STAINLESS

STEEL BOLTS. STRAP AT 4'

INTERVALS (MIN. OF 2)

SOLVENT WELD

SCH40 PIPE

GLUE FITTING BELL & SPIGOT SWEEP

ELBOW EMBEDDED IN CONC. AT 45°

W/ SEWER FLOW

NOT TO SCALE

SANITARY SEWER MANHOLE

WITH INSIDE DROP DETAIL

BYDESCRIPTIONDATEREV

DATE:

PROJECT:

DESIGN:

CHECKED:

DRAWN:

SCALE:

OF

53 REGIONAL DRIVE

CONCORD, NEW HAMPSHIRE 03301

M :\1

.0

KE

EN

E

- G

EO

R

G E

ST

B

R

ID

G E\

D R

AW

\D

R

AW

IN

G

S\

SH

EE

T

FI

LE

S\

0.

-R

D W

Y D

ET

.D

W G

CONSTRUCTION DOCUMENTS

CITY OF KEENE

KEENE, NEW HAMPSHIRE

DETAIL SHEET (2 OF 3)

AS SHOWN

SLM

BRC

MKM

18820.00

AUGUST 2025

RW-09

12 30

NOT TO SCALE

CATCH BASIN DETAIL

NOT TO SCALE

CATCH BASIN PROTECTION DETAIL

NOT TO SCALE

DRAIN MANHOLE DETAIL

NOT TO SCALE

STABILIZED ENTRANCE DETAIL

NOT TO SCALE

TRENCH PATCH DETAIL

NOT TO SCALE

VERTICAL GRANITE CURB DETAIL

NOT TO SCALE

CONCRETE SIDEWALK DETAIL

LOAM AREA

IN EARTH

FINISHED GRADE

IN ROCK

DRAIN LINE

PAVED AREA

6" MIN.

AGGREGATE BASE COURSES

PAVEMENT

UNDISTURBED SUITABLE MATERIAL

OR COMPACTED BACKFILL

SUITABLE NATIVE

MATERIAL

OR IMPORTED

GRANULAR FILL

SAW CUT ASPHALT 12" WIDER THAN

TRENCH WIDTH (W)

W = MAXIMUM ALLOWABLE TRENCH PAYMENT WIDTH, WHERE DEFINED.

FOR PIPES LESS THAN OR EQUAL TO 15 INCHES IN DIAMETER, W SHALL BE NO MORE THAN 36 INCHES.

FOR PIPES GREATER THAN 15 INCHES IN DIAMETER, W SHALL BE 24 INCHES PLUS PIPE OUTSIDE DIAMETER.

SEE TYPICAL ROAD SECTION

12" IN ROCK

PIPE BEDDING

NOT TO SCALE

DRAINAGE TRENCH DETAIL

5' TRANSITION

8" CRUSHED GRAVEL

2 12" BINDER COURSE

1 12" WEARING COURSE

BE

G

IN

F

U

LL

D

EP

TH

C

O N

ST

R

U C

TI

O

N

ST

A

+5

BE

G

IN

P

AV

EM

EN

T

TR

AN

SI

TI

O N

ST

A

+5

EXISTING PAVEMENT

COLD PLANE AND OVERLAY

1 12"…