public notice · the work also includes the removal of an existing submarine cable from the channel...

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The District Engineer has received a permit application to conduct work in waters of the United States from the City of Boston Public Works Department, One City Hall Plaza, Room 710, Boston, Massachusetts 02201-2013. This work is proposed at the Northern Avenue Bridge in the Fort Point Channel of Boston Harbor at Northern Avenue, Boston, Massachusetts and on the Chelsea River at 338 East Eagle Street, East Boston, Massachusetts. The work involves work, structures, and fill below the high tide line of waters of the United States at two separate sites in Boston, Massachusetts as follows: Northern Avenue Bridge Site (Coordinates are: Latitude N 42.35455˚, Longitude W 71.04956˚) The existing Northern Avenue Bridge is proposed to be removed. The City of Boston proposes to remove the bridge superstructure in sections and float the sections intact via barge to a City of Boston owned property in East Boston. Approximately 14 piles will be placed to anchor a proposed floating fender system which will surround the work area. The work also includes the removal of an existing submarine cable from the channel bed in Fort Point Channel. The excavation of the cable would impact approximately 720 square feet (SF) of the channel bottom and require the removal of approximately 960 cubic feet of material. East Boston Site (Coordinates are: Latitude N 42.38273˚, Longitude W 71.02793˚) The removed bridge sections would be floated intact to a City owned storage yard at 338 East Eagle Street, East Boston, Massachusetts, on the Chelsea River. A temporary ramp and trestle system is proposed to be constructed in the Chelsea River to offload the bridge at the storage yard. The Trestle would be 118 feet (ft) wide by 100 ft long and supported by approximately 36, 24 inch diameter pipe piles. Some of the piles would be batter piles. The ramp would be 118 ft wide by 85 ft long. The ramp and trestle would be constructed of steel beams and plates with timber matting at the surface. Temporary impacts to 69,698 SF of mud flats associated with the installation of the ramp and trestle are proposed. Pile driving and the use of barges, anchors, and other equipment in the intertidal area during construction of the trestle system would contribute to the temporary impacts. The work is shown on the attached plans entitled, “Capital Improvement Project 16-93, Bridge B-16-184 (38K), Northern Avenue Over Fort Point Channel, Northern Avenue Bridge Construction – Phase 1,” on 14 sheets, and dated February, 2016. The project has been designed to avoid and minimize impacts. Impacts to waters of the US would be temporary. Mitigation for unavoidable impacts is being considered as part of this public notice.

696 Virginia Road Concord, MA 01742-2751

PUBLIC NOTICE Comment Period Begins: February 16, 2016

Comment Period Ends: March 1, 2016

File Number: NAE-2015-02009

In Reply Refer To: Kevin R. Kotelly, P.E. Phone: (978) 318-8703

E-mail: [email protected]

CENAE-R

FILE NO. NAE-2015-2009

2

AUTHORITY

Permits are required pursuant to: _X _ Section 10 of the Rivers and Harbors Act of 1899 _X _ Section 404 of the Clean Water Act ____ Section 103 of the Marine Protection, Research and Sanctuaries Act. The decision whether to issue a permit will be based on an evaluation of the probable impact of the proposed activity on the public interest. That decision will reflect the national concern for both protection and utilization of important resources. The benefit which may reasonably accrue from the proposal must be balanced against its reasonably foreseeable detriments. All factors which may be relevant to the proposal will be considered, including the cumulative effects thereof; among those are: conservation, economics, aesthetics, general environmental concerns, wetlands, cultural value, fish and wildlife values, flood hazards, flood plain value, land use, navigation, shoreline erosion and accretion, recreation, water supply and conservation, water quality, energy needs, safety, food production and, in general, the needs and welfare of the people. The Corps of Engineers is soliciting comments from the public; Federal, state, and local agencies and officials; Indian Tribes; and other interested parties in order to consider and evaluate the impacts of this proposed activity. Any comments received will be considered by the Corps of Engineers to determine whether to issue, modify, condition or deny a permit for this proposal. To make this decision, comments are used to assess impacts on endangered species, historic properties, water quality, general environmental effects, and the other public interest factors listed above. Comments are used in the preparation of an Environmental Assessment and/or an Environmental Impact Statement pursuant to the National Environmental Policy Act. Comments are also used to determine the need for a public hearing and to determine the overall public interest of the proposed activity. Where the activity involves the discharge of dredged or fill material into waters of the United States or the transportation of dredged material for the purpose of disposing it in ocean waters, the evaluation of the impact of the activity in the public interest will also include application of the guidelines promulgated by the Administrator, U.S Environmental Protection Agency, under authority of Section 404(b) of the Clean Water Act, and/or Section 103 of the Marine Protection Research and Sanctuaries Act of 1972, as amended. ESSENTIAL FISH HABITAT

The Magnuson-Stevens Fishery Conservation and Management Act, as amended by the Sustainable Fisheries Act of 1996 (Public Law 104-267), requires all federal agencies to consult with the National Marine Fisheries Service on all actions, or proposed actions, permitted, funded, or undertaken by the agency, that may adversely affect Essential Fish Habitat (EFH). This project would impact approximately 1.6 acres of Essential Fish Habitat (EFH) for various life stages of Atlantic cod (Gadus morhua), haddock (Melanogrammus aeglefinus), pollock (Pollachius virens), whiting (Merluccius bilinearis), red hake (Urophycis chuss), white hake (Urophycis tenuis), winter flounder (Pseudopleuronectes americanus), yellowtail flounder (Limanda ferruginea), windowpane flounder (Scophthalmus aquosus), American plaice (Hippoglossoides platessoides), ocean pout (Macrozoarces americanus), Atlantic halibut (Hippoglossus hippoglossus), Atlantic sea scallop (Placopecten magellanicus), Atlantic sea herring (Clupea harengus), bluefish (Pomatomus saltatrix), long finned squid (Loligo pealeii), short finned squid (Illex illecebrosus), Atlantic butterfish (Peprilus triacanthus), Atlantic mackerel (Scomber scombrus), summer flounder (Paralichthys dentatus), scup (Stenotomus chrysops), black sea bass (Centropristis

CENAE-R

FILE NO. NAE-2015-2009

3

striata), surf clam (Spisula solidissima), and bluefin tuna (Thunnus thynnus). This habitat consists of subtidal silt and sand and mudflat. Loss of this habitat may adversely affect the species listed above. However, the District Engineer has made a preliminary determination that the site-specific adverse effect will not be substantial. Further consultation with the National Marine Fisheries Service regarding EFH conservation recommendations is being conducted and will be concluded prior to the final decision.

NATIONAL HISTORIC PRESERVATION ACT

Based on his initial review, the District Engineer has determined that the proposed work may have an adverse effect on properties listed in, or eligible for listing in, the National Register of Historic Places, specifically, the Northern Avenue Bridge. Additional review and consultation to fulfil requirements under Section 106 of the National Historic Preservation Act of 1966, as amended, will be ongoing as part of the permit review process. ENDANGERED SPECIES CONSULTATION

The New England District, Army Corps of Engineers has reviewed the list of species protected under the Endangered Species Act of 1973, as amended, which might occur at the project site. It is our preliminary determination that the proposed activity for which authorization is being sought is designed, situated or will be operated/used in such a manner that it is not likely to adversely affect any Federally listed endangered or threatened species or their designated critical habitat. By this Public Notice, we are requesting that the appropriate Federal Agency concur with our determination. COASTAL ZONE MANAGEMENT The States of Connecticut, Maine, Massachusetts, New Hampshire and Rhode Island have approved Coastal Zone Management Programs. Where applicable, the applicant states that any proposed activity will comply with and will be conducted in a manner that is consistent with the approved Coastal Zone Management Program. By this Public Notice, we are requesting the State concurrence or objection to the applicant’s consistency statement. The following authorizations have been applied for, or have been, or will be obtained: (X) Permit, License or Assent from State. (X) Permit from Local Wetland Agency or Conservation Commission. (X) Water Quality Certification in accordance with Section 401 of the Clean Water Act. In order to properly evaluate the proposal, we are seeking public comment. Anyone wishing to comment is encouraged to do so. Comments should be submitted in writing by the above date. If you have any questions, please contact Kevin Kotelly at (978) 318-8703, (800) 343-4789 or (800) 362-4367, if calling from within Massachusetts. Any person may request, in writing, within the comment period specified in this notice, that a public hearing be held to consider the application. Requests for a public hearing shall specifically state the reasons for holding a public hearing. The Corps holds public hearings for the purpose of obtaining public comments when that is the best means for understanding a wide variety of concerns from a diverse segment of the public. The initial determinations made herein will be reviewed in light of facts submitted in response to this notice. All comments will be considered a matter of public record. Copies of letters of objection will be forwarded to the applicant who will normally be requested to contact objectors directly in an effort to reach an understanding.

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EAST BOSTON, MA

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CITY OF BOSTON PUBLIC WORKS DEPARTMENT

HON. MARTIN J. WALSH - MAYOR MICHAEL D. DENNEHY - COMMISSIONER OF PUBLIC WORKS

CAPITAL IMPROVEMENT PROJECT 16-93 BRIDGE B-16-184 (38K)

NORTHERN AVENUE OVER FORT POINT CHANNEL NORTHERN AVENUE BRIDGE CONSTRUCTION - PHASE 1

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APPROVED:

PLANS PREPARED BY:

101 ARCH STREET, SUITE 301, BOSTON, MA 02110

R 3512 1 DATE: FEB 2016

P.S.&E. SUBMISSION COM SSIu R 01/PUBLIC WORKS

CITY OF BOSTON PUBUC WORKS DEPARTMENT ENGINEERING DIVISION

NORTHERN AVENUE BRIDGE CONSTRUCTION - PHASE 1

GENERAL NOTES & INDEX OF DRAWINGS

SCALE: AS NOTED DATE: FEB 2016

CITY ENGINEER

24. THE U.S. COAST GUARD, CITY OF BOSTON, MASSACHUSETTS DEPARTMENT OF ENVIRONMENTAL PROTECTION, ENVIRONMENTAL PROTECTION AGENCY, AND THE MASSACHUSETTS STATE POLICE HAVE THE RIGHT TO CLEAR THE CHANNEL FOR EMERGENCIES.

25. THE CONTRACTOR SHALL NOT IMPACT THE NAVIGATION CHANNEL AND ANY CLOSURES ASSOCIATED WITH THE REMOVAL OR DEMOLITION OPERATIONS SHALL BE COORDINATED AND APPROVED BY THE USCG.

26. PRIOR TO MOBIUZATION, THE CONTRACTOR IS REQUIRED TO CONTACT THE MARINE SAFETY OFFICER AT THE ADDRESS BELOW AND PROVIDE THE OFFICER A SCHEDULE OF HIS CONSTRUCTION ACTIVITIES WHICH WOULD IMPACT MARINE TRAFFIC.

U.S. COAST GUARD 408 ATLANTIC AVENUE BOSTON, MA 02110

27. THE CONTRACTOR SHALL SUBMIT TO THE ENGINEER FOR APPROVAL THE PLAN AND SCHEDULE OF ALL WORK THAT WILL RESTRICT THE NAVIGATIONAL CHANNEL TO MARINE TRAFFIC. THE CONTRACTOR SHALL NOTIFY THE U.S. COAST GUARD (BOSTON) IN WRITING AS PER CONTRACT REQUIREMENTS. ALL REQUESTS ARE TO BE REVIEWED AND APPROVED BY THE ENGINEER PRIOR TO COAST GUARD SUBMITTAL. THIS SHALL INCLUDE TEMPORARY NAVIGATION LIGHTING ON CONTRACTOR EQUIPMENT AS REQUIRED IN ACCORDANCE WITH U.S. COAST GUARD REGULATIONS.

GENERAL NOTES

1. THE BOSTON PUBLIC WORKS DEPARTMENT MAKES NO ASSURANCES REGARDING THE PRESENTED CONDITIONS, DIMENSIONS AND MATERIAL OF THE EXISTING STRUCTURES. THE CONTRACTOR SHALL DETERMINE AND VERIFY EXISTING CONDMONS AND CONSTRUCTION FEATURES OF THE STRUCTURES AS NECESSARY FOR PLANNING AND COMPLETION OF THE WORK.

2. THE CONTRACTOR SHALL VISIT THE PROJECT SITES PRIOR TO BIDDING TO FAMILIARIZE HIMSELF WITH THE SITE CONDITIONS AND THE EXTENT AND NATURE OF THE WORK TO BE PERFORMED UNDER THIS CONTRACT. THE SWING PIER, SWING SPAN AND TENDER'S HOUSE CAN ONLY BE ACCESSED BY BOAT IN COORDINATION WITH CRY PERSONNEL

3. THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS REQUIRED FOR THE PROPER PERFORMANCE OF THE WORK. FIELD CONDITIONS MAY EXIST WHICH DEVIATE FROM THE TYPICAL AND THEORETICAL DIMENSIONS SHOWN ON THE PLANS, IN CONDITION REPORTS, AND FIELD INSPECTION NOTES.

4. EXISTING BRIDGE PLANS, CONDITION REPORTS, FIELD INSPECTION NOTES AND CALCULATIONS ARE PROVIDED FOR INFORMATIONAL PURPOSES ONLY AND ARE NOT TO BE ASSUMED TO BE ACCURATE OR COMPLETE. THE CONTRACTOR SHALL DETERMINE THE AS-BUILT AND CURRENT CONDMON OF THE BRIDGE. ALL CALCULATIONS REQUIRED TO PERFORM CONTRACT WORK IN A SAFE AND EFFECTIVE MANNER SHALL BE PREPARED AND STAMPED BY A PROFESSIONAL ENGINEER REGISTERED IN THE STATE OF MASSACHUSETTS IN THE EMPLOY OF THE CONTRACTOR.

5. DIMENSIONS, ANGLES, AND ELEVATIONS SHOWN ON THE EXISTING DETAILS ARE TAKEN FROM EXISTING BRIDGE PLANS SUPPLEMENTED BY LIMITED FIELD MEASUREMENTS AND ARE NOT GUARANTEED. THE CONTRACTOR SHALL DETERMINE AND ESTABLISH ALL DIMENSIONS, ANGLES, ELEVATIONS, AND EXISTING DETAILS NECESSARY FOR THE COMPLETION OF ALL WORK. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE ADEQUACY AND ACCURACY THEREOF AND SHALL NOT COMMENCE ANY WORK UNTIL THE REQUIRED MEASUREMENTS ON THE ACTUAL STRUCTURE HAVE BEEN MADE.

13. THE CONTRACTOR SHALL OBTAIN ALL REQUIRED PERMITS AND LICENSES FOR THE MANAGEMENT OF LEAD, ASBESTOS AND ANY OTHER HAZARDOUS MATERIAL AND PAY ALL CHARGES AND FEES INCURRED.

14. FOR THE PERMITS ACQUIRED BY THE cny, THE CONTRACTOR SHALL BE RESPONSIBLE FOR ANY ASSOCIATED DELAYS AND COSTS DUE TO CHANGES REQUIRED TO THESE PERMITS.

15. THE CONTRACTOR SHALL GIVE ALL NOTICES NECESSARY AND INCIDENTAL TO THE DUE AND LAWFUL PROSECUTION OF THE WORK, AND SHALL COMPLY WITH ALL LAWS, ORDINANCES, RULES AND REGULATIONS OF THE FEDERAL GOVERNMENT, THE STATE, THE CRY OF BOSTON AND OTHERS HAVING JURISDICTION OVER THE WORK AND ENCOMPASSED BY THE CONTRACT.

16. THE CONTRACTOR'S ATTENTION IS DIRECTED TO THE FACT THAT THE BRIDGE CROSSES NAVIGABLE WATERS. IT SHALL BE THE SOLE RESPONSIBILITY OF THE CONTRACTOR TO CONDUCT OPERATIONS AS TO COMPLY WITH ALL THE REGULATIONS AND REQUIREMENTS OF THE U.S. COAST GUARD, THE CORPS OF ENGINEERS, AND THE MASSACHUSETTS DEPARTMENT OF ENVIRONMENTAL PROTECTION.

17. THE USE OF BARGES, FALSEWORK, FORMWORK, RIGGING, SCAFFOLDING AS WELL AS OTHER CONSTRUCTION METHODS AND PROCEDURES SHALL BE SCHEDULED AND PERFORMED IN SUCH A WAY THAT IT SHALL NOT INTERFERE WITH OR CAUSE UNAUTHORIZED INTERRUPTIONS TO NAVIGATION. THE EXTENT AND LIMITS OF ENCROACHMENT, IF ANY, ON THE NAVIGATION CLEARANCES SHALL BE SUBMITTED TO THE USCG FOR APPROVAL. NO ENCROACHMENT SHALL BE CAUSED UNTIL WRITTEN AUTHORIZATION IS RECEIVED FROM THE USCG.

18. BEFORE COMMENCEMENT OF ANY WORK, THE CONTRACTOR SHALL LOCATE ANY UTILITIES IN THE WORK AREAS AND PERFORM SITE SURVEYS TO THE LEVEL OF DETAIL NECESSARY TO IDENTIFY AND PROTECT THE UTILMES.

19. EXISTING ELECTRIC SERVICE ON THE BRIDGE IS TO BE SHUT OFF, CUT AND CAPPED, PRIOR TO ANY BRIDGE REMOVAL ACTIVITIES.

DAMAGE CAUSED BY SUCH PASSING MARINE TRAFFIC.

29. THE CONTRACTOR IS ADVISED THAT THERE IS VESSEL TRAFFIC IN CLOSE PROXIMITY OF THE BRIDGE SERVING THE ADJACENT FACILITIES (ROWE'S WHARF, MARINA NEXT TO BARKING CRAB RESTAURANT, NOM TIDE STATION, JAMES HOOK & CO., WATER SHUTTLE, ETC.). THE CONTRACTOR SHALL PERFORM THE WORK UNDER THIS CONTRACT SO AS TO MINIMIZE INTERFERENCE WITH NAVIGATION.

30. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROPER DISPOSAL OF ALL EXISTING MATERIALS WHICH ARE TO BE REMOVED AND DISPOSED OF FROM THE STRUCTURE AS SHOWN ON THE PLANS. THE BID PRICE SHALL INCLUDE THE COMPLETE COST OF REMOVAL, HANDLING AND LEGAL DISPOSAL OF SUCH MATERIALS. THE CHANNEL IS TO REMAIN CLEAR OF DEBRIS AND MATERIALS.

31. NO PART OF THE EXISTING SUPERSTRUCTURE ELEMENTS SHALL BE ALLOWED TO FALL INTO THE WATER DURING THE PROCESS OF REMOVAL.

32. THE EXISTING BRIDGE IS COATED WITH A LEAD-BASED PAINT. LEAD IS A HAZARDOUS MATERIAL. REFER TO THE SPECIAL PROVISIONS FOR A DESCRIPTION OF THE LEAD PAINT REMOVAL, CONTAINMENT AND DISPOSAL REQUIREMENTS AS WELL AS THE WORKER HEALTH AND SAFETY CONTROLS, AND REQUIRED REGULATORY AGENCY FILINGS AND APPROVALS.

33. IN ADDITION TO THE REQUIREMENTS FOR CONTAINMENT OF LEAD-CONTAMINATED DEBRIS DESCRIBED IN THE SPECIAL PROVISIONS. THE CONTRACTOR SHALL AT NO TIME DROP WASTE, STEEL, DEBRIS OR OTHER MATERIAL TO THE AREAS BELOW THE BRIDGE. PLATFORMS, NETS, SCREENS OR OTHER PROTECTIVE DEVICES SHALL BE USED TO CATCH ALL SUCH MATERIAL. IF THE ENGINEER DETERMINES THAT ADEQUATE PROTECTIVE DEVICES ARE NOT BEING EMPLOYED, THE WORK SHALL BE SUSPENDED UNTIL ADEQUATE PROTECTION IS PROVIDED WITHOUT ADDITIONAL COMPENSATION.

INDEX OF DRAWINGS

SHEET NO. TITLE

1. TITLE SHEET

2. GENERAL NOTES & INDEX OF DRAWINGS

3. GENERAL PLAN AND ELEVATION

4. SUGGESTED CONSTRUCTION SEQUENCE 1 OF 2

5. SUGGESTED CONSTRUCTION SEQUENCE 2 OF 2

6. TENDER'S HOUSE REMOVAL

7. SWING SPAN REMOVAL & RELOCATION

8. APPROACH TRUSS SPANS 1 & 2 REMOVAL & RELOCATION

9. SWING PIER FENDER SYSTEM REMOVAL

10. PLAN OF FLOATING BARRIER SYSTEM

11. ELEVATION AND DETAILS OF FLOATING BARRIER SYSTEM

12. PERMANENT BARRIER LOCATION PLAN

13. STORAGE YARD LAYOUT

14. TEMPORARY TRESTLE DETAILS

6. SOME OF THE EXISTING STRUCTURAL ELEMENTS ARE IN ADVANCED STAGES OF DETERIORATION. LOCAL FAILURES ARE POSSIBLE. THE CONTRACTOR IS SOLELY RESPONSIBLE FOR ASSESSING THE CONDITION OF THE STRUCTURE AND ENSURING THE SAFETY AND STABILITY OF THE EXISTING ELEMENTS DURING AND THROUGH ALL THE STAGES OF REMOVAL AND DISPOSAL OR REMOVAL AND RELOCATION. AS APPLICABLE.

7. CONTRACTOR SHALL BE SOLELY RESPONSIBLE FOR ANALYZING AND ASSESSING THE SAFETY AND STABILITY OF THE EXISTING BRIDGE STRUCTURE FOR SUITABIUTY OF CONTRACTORS OWN SEQUENCE AND MEANS AND METHODS OF BRIDGE REMOVAL. DUE CONSIDERATION SHALL BE GIVEN TO EQUIPMENT, MATERIAL AND PERSONNEL TO BE PLACED ON THE EXISTING STRUCTURE DURING 'THE DEMOUTION PROCESS.

8. THE CONTRACTOR SHALL SUBMIT TO THE ENGINEER AND MASSACHUSETTS DEP THE PROPOSED METHOD OF WORK, SCHEDULE AND IDENTIFICATION OF EQUIPMENT TO BE USED FOR ALL ITEMS OF WORK AT LEAST ONE WEEK PRIOR TO THE START OF CONSTRUCTION. THE FINAL STORAGE ARRANGEMENT OF MATERIALS AND BRIDGE SECTIONS AT THE EAST BOSTON STORAGE YARD SHALL BE ALSO SUBMITTED TO THE ENGINEER FOR APPROVAL

20. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ENSURING THAT NO DAMAGE OCCURS TO EXISTING UTILITIES WITHIN THE VICINITY OF THE PROJECT AS A RESULT OF THE WORK. THE CONTRACTOR SHALL CONTACT DIGSAFE (811) A MINIMUM OF 72 HOURS PRIOR TO THE START OF ANY CONSTRUCTION ACTIVITIES.

21. EXISTING SUBMARINE CABLES SHALL BE REMOVED.

22. THE CONTRACTOR SHALL CONDUCT CONSTRUCTION OPERATIONS IN ORDER TO PRECLUDE THE INTERRUPTION OF MARINE AIDS TO NAVIGATION LOCATED ON THE BRIDGE OR APPURTENANCES OF THE BRIDGE: IF OPERATIONS REQUIRE INTERRUPTION OF EXISTING AIDS, PROVIDE TEMPORARY AIDS OF POWER AS REQUIRED FOR THE DURATION OF THE INTERRUPTION IN ORDER TO MAINTAIN THE MARINE AIDS TO NAVIGATION IN ACCORDANCE WITH U.S. COAST GUARD REGULATIONS.

23. ALL CONSTRUCTION EQUIPMENT MUST BE MARKED IN ACCORDANCE WITH U.S. COAST GUARD REGULATIONS WHEN NOT ENGAGED IN CONSTRUCTION ACTIATIES. THE CONTRACTOR'S SUBMITTED PLAN AND SCHEDULE SHALL SHOW THE PROPOSED LOCATION TO MOOR HIS CONSTRUCTION VESSELS WHEN THEY ARE NOT ENGAGED IN CONSTRUCTION ACTIVITIES.

34. CONTRACTOR SHALL PROVIDE PERMANENT VEHICLE BARRIERS (MASSDOT ITEM 629.2 E 403.4.0) AND PERMANENT CHAIN LINK FENCING (MASSDOT ITEM 644 E 404.1.0), 8' HIGH WITH ANTI-CLIMBING TOP DETAILS ON BOTH SIDES OF THE BRIDGE APPROACHES TO PREVENT ACCIDENTAL OR UNAUTHORIZED ENTRY. FINAL CONDITION SAFETY MEASURES ARE TO BE IN PLACE PRIOR TO REMOVAL OF TEMPORARY SAFETY BARRIERS AND FENCING.

35. ELEVATIONS ARE BASED ON THE NORTH AMERICAN VERTICAL DATUM (NAVD) OF 1988.

36. THE CONTRACTOR IS NOT PERMITTED TO STOCKPILE ANY MATERIALS REMOVED FROM THE BRIDGE OVERNIGHT ON THE CONTRACTOR STAGING AREAS ALONG NORTHERN AVENUE.

9. AT LEAST ONE WEEK PRIOR TO THE START OF THE CONSTRUCTION, THE CONTRACTOR SHALL SUBMIT DETAILED PLANS AND PROCEDURES (WITH SUPPORTING WORKING DRAWINGS, CALCULATIONS, BARGE ANALYSIS, DEMOUTION METHODS, EQUIPMENT, CREW SIZES, SEQUENCE, DURATIONS. ETC.) FOR THE FIXED SPANS, SWING SPAN, AND TENDER'S HOUSE TO THE ENGINEER FOR REVIEW AND APPROVAL IN ADDITION, TEMPORARY SUPPORTS, TEMPORARY SHIELDING, OR ANY REQUIRED SHORING SHALL HAVE SHOP AND WORKING DRAWINGS PREPARED AND SUBMITTED TO THE ENGINEER FOR REVIEW AND APPROVAL AN ANALYSIS OF THE STAGING BARGE AT THE POINTS WHERE THE BRIDGE SPANS ARE SUPPORTED ON THE DECK IS ALSO REQUIRED FOR REVIEW AND APPROVAL BY THE ENGINEER. ALL SUBMITTALS SHALL BE PREPARED AND STAMPED BY A PROFESSIONAL ENGINEER REGISTERED IN THE COMMONWEALTH OF MASSACHUSETTS IN THE EMPLOY OF THE CONTRACTOR. THE CONTRACTOR SHALL NOT COMMENCE ANY WORK UNTIL THE APPLICABLE SUBMITTALS ARE APPROVED BY THE ENGINEER.

10. WORKING DRAWINGS SHALL STATE THAT DIMENSIONS HAVE BEEN FIELD VERIFIED BY THE CONTRACTOR. DRAWINGS SUBMITTED WITHOUT THIS STATEMENT WILL NOT BE REVIEWED OR APPROVED. DIMENSIONS SHALL NOT BE SCALED FROM THE DRAWINGS. SCALES NOTED ON THE PLANS ARE NOT APPLICABLE TO REDUCED SIZED PRINTS. DIVIDE SCALES BY 2 FOR HALF-SIZE PRINTS.

11. DETERMINATION OF OBSTRUCTIONS REQUIRING REMOVAL WITHIN THE CHANNEL ABOVE THE MUDUNE SHALL BE COMPLETED USING AVAILABLE METHODS AND MAY INCLUDE BUT NOT LIMITED TO: VISUAL INSPECTION AT LOW TIDE, DIVER INSPECTION, OR SIDE SCAN SONAR.

12. CONTRACTOR SHALL RETRIEVE THE SPAN 1 LOWER CHORD MEMBER L1L2 OF THE SOUTH EXTERIOR FIXED TRUSS THAT HAS FALLEN INTO THE CHANNEL.

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SYSTEM wn-H PILES A DE-ENERGIZED AND REMOVED. 7. THIS SHEET IS INTENDED TO SHOW THE GENERAL PLAN AND ELEVATION OF THE BRIDGE

ONLY. THE CONTRACTOR IS NOTIFIED THAT THERE ARE NUMEROUS ADJACENT STRUCTURES

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CITY ENGWIEER

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SUGGESTED SEQUENCE OF CONSTRUCTION

GENERAL

THE FOLLOWING CONSTRUCTION PROCEDURE AND EQUIPMENT INFORMATION (IDENTIFIED IN THESE PLANS) IS INTENDED AS A SUGGESTION OF ONE FEASIBLE METHOD IN ORDER TO PROVIDE A UNIFORM BASIS FOR BIDDING AND TO ACQUIRE THE APPROPRIATE PERMITS. ANY CHANGES TO THE PERMITS DUE TO THE CONTRACTOR'S MEANS AND METHODS SHALL BE THE CONTRACTOR'S RESPONSIBILITY. THE CONTRACTOR SHALL SUBMIT THE INTENDED CONSTRUCTION PROCEDURE, TAILORED TO THEIR FIRM'S CAPABIUTIES, TO THE ENGINEER FOR APPROVAL. CONSTRUCTION PROCEDURES SHALL BE SUBMITTED FOR ALL ITEMS OF WORK.

SUBMITTED SEQUENCES WHICH RESULT IN A LONGER DURATION OF WORK, RESULT IN ADDITIONAL RESOURCE AREA IMPACTS, OR ADVERSELY AFFECT NAVIGATION WILL NOT BE FAVORABLY CONSIDERED. SHORT-TERM PARTIAL CLOSURE OF THE NAVIGATION CHANNEL (WHEN NECESSARY) SHALL BE COORDINATED AND SCHEDULED WITH THE CITY AND APPROVED BY THE UNITED STATES COAST GUARD. PLEASE NOTE THAT THE UNITED STATES COAST GUARD IS LOCATED IN THE 8-STORY BUILDING ADJACENT TO SPAN 1.

PRIOR TO ANY MODIFICATION TO EXISTING STEEL (CUTTING, WELDING, ETC.) REMOVE LEAD PAINT IN ACCORDANCE WITH THE CONTRACTOR'S APPROVED LEAD ABATEMENT PLAN.

NOTE WELL

THE CONTRACTOR IS CAUTIONED THAT STRUCTURAL INTEGRITY OF THE EXISTING TRUSS SPANS IS NOT ASSURED DUE TO STRUCTURAL STEEL DETERIORATION. LOCAL FAILURES ARE POSSIBLE. THE CONTRACTOR SHALL MAINTAJN BALANCE AND STABILITY OF THE SWING SPAN DURING CONSTRUCTION WITH REMOVAL OPERATIONS PROCEEDING IN A SYMMETRICAL SEQUENCE.

CAUTION - THE TENDER'S HOUSE IS SUSPECTED OF CONTAINING ASBESTOS AND ALL STRUCTURAL STEEL IS SUSPECTED OF BEING COATED WITH LEAD BASED PAINT.

PROHIBITION OF EXPLOSIVE REMOVAL METHODS

THE USE OF EXPLOSIVE REMOVAL METHODS IS STRICTLY PROHIBITED.

GENERAL PRELIMINARY PREPARATION

WITHIN 72-HOURS OF NOTICE-TO-PROCEED THE CONTRACTOR SHALL MOBILIZE ON BOTH SITES - THE BRIDGE (BOSTON) AND THE STORAGE YARD (EAST BOSTON). BEGIN BRIDGE WORK BY CUTTING AND REMOVING PILES BELOW THE SWING SPAN AT THE BRIDGE AND BEGIN STORAGE YARD WORK BY CLEARING THE SITE. THE STORAGE YARD IS LOCATED AT 338 EAST EAGLE STREET IN EAST BOSTON.

THE CONTRACTOR IS REQUIRED TO MAKE ALL NECESSARY FIELD MEASUREMENTS AND SUBMIT REQUIRED SHOP/WORKING/REMOVAL DRAWINGS FOR APPROVAL UPON APPROVAL, THE CONTRACTOR SHALL PROCURE MATERIALS AND EQUIPMENT IN A MANNER AND SEQUENCE SO AS TO AVOID DELAYS IN THE WORK,

THE CONTRACTOR SHALL SUBMIT A WORK SCHEDULE AND DETAILED CONSTRUCTION PROCEDURES FOR ALL REMOVAL STEPS, WHICH MUST BE A WELL PLANNED AND COORDINATED SEQUENCE OF ACTIVITIES. THIS WORK SCHEDULE AND ANY REQUIRED DETAILED CONSTRUCTION PROCEDURES SHALL BE SUBMITTED FOR APPROVAL.

THE CONTRACTOR WILL NOT BE PERMITTED TO UTILIZE A CONSTRUCTION PROCEDURE THAT ALLOWS ANY PORTION OF THE STRUCTURE TO BE DROPPED INTO THE WATER AND LATER PICKED FOR REMOVAL.

CONTRACTOR STAGING AREAS INCLUDE: A PORTION OF THE ROADWAY AREA NEXT TO THE BOSTON ABUTMENT BETWEEN THE JAMES HOOK PROPERTY AND THE USCG BUILDING; SPAN 3 AND A PORTION OF THE ROADWAY ADJACENT TO THE SOUTH BOSTON ABUTMENT: AND, A PORTION OF THE STORAGE YARD IN EAST BOSTON LOCATED AT 338 EAST EAGLE STREET.

IMPORTANT FIRST ITEMS

1. THE CONTRACTOR SHALL PERFORM A SURVEY OF THE CHANNEL BOTTOM AT THE BRIDGE WITHIN THE LIMITS SHOWN IN THE 2010 HYDROGRAPHIC SURVEY PROVIDED IN APPENDIX A OF THE CONTRACT DOCUMENTS. IN ADDITION, THE CONTRACTOR SHALL OBTAIN LOW TIDE COLOR PHOTOGRAPHS OF THE TIDAL FLAT AREA ADJACENT TO THE STORAGE YARD.

2. THE CONTRACTOR SHALL FIND, COLLECT. AND SECURE SALVAGE ITEMS / COMPONENTS OF HISTORICAL SIGNIFICANCE AND ITEMS / COMPONENTS THAT THE CITY WANTS TO RECLAIM FOR USE AT ANOTHER LOCATION. THESE ITEMS SHALL BE RELOCATED AND PROTECTED AT THE STORAGE YARD.

.-351 2-4

REMOVAL OF TENDER'S HOUSE

3. POSITION WORK BARGES ADJACENT TO TENDER'S HOUSE.

4. PERFORM PHOTOGRAPHIC DOCUMENTATION OF THE INSIDE AND OUTSIDE OF THE TENDERS HOUSE.

5. REMOVE ASBESTOS CONTAINING MATERIALS AND DISPOSE OF IN AN APPROVED MANNER.

6. REMOVE THE ROOF OF THE TENDERS HOUSE.

7. PICK THE COMPONENTS OF HISTORICAL SIGNIFICANCE AND RELOCATE TO THE STORAGE YARD.

8. REMOVE THE REMAINING TENDERS HOUSE WALLS. FLOOR, AND SUPPORTING TIMBER PILES. ALL TENDER'S HOUSE PILES SHALL BE CUT AND REMOVED TO AN ELEVATION 3-FEET ABOVE THE MUDLINE.

REMOVAL OF SWING SPAN TRUSS

9. THE CONTRACTOR SHALL DISCONNECT ALL POWER TO THE SWING SPAN BY REMOVAL OF THE ELECTRIC CABLE LOCATED ON TOP OF THE DECK IN SPAN 1. THE SUBMARINE CABLE ON TOP OF THE MUCK LINE BETWEEN PIER 1 AND THE SWING PIER SHALL BE REMOVED AFTER THE TIME OF YEAR RESTRICTION FOR WORK DISTURBING SEDIMENTS. INSTALL TEMPORARY LIGHTING ON FENDER SYSTEM.

10. REMOVE THE TOP PORTION OF ALL TIMBER PILES THAT ARE DIRECTLY UNDERNEATH THE SWING SPAN AND BEHIND THE NAVIGATION CHANNEL FENDER SYSTEM TO FACILITATE BARGE OPERATIONS. EACH INDIVIDUAL PILE SHALL BE CUT AND REMOVED AT AN ELEVATION OF APPROXIMATELY 3-FEET ABOVE THE MUDLINE.

11. REMOVE THE FENDER TAIL (IDENTIFIED ON THE PLANS) TO FACILITATE BARGE OPERATIONS WHICH ALLOWS FOR BARGE ACCESS ABOVE THESE PILES. THE CONTRACTOR MUST LEAVE A SUFFICIENT LENGTH OF THE EXISTING PILE TO FACILITATE PILE REMOVAL BY PULLING AFTER BRIDGE REMOVAL (ASSUMED TO BE APPROXIMATELY 3-FEET ABOVE THE MUDLINE). AT A FUTURE DATE (PHASE II) EACH REMAINING STUB OF A PILE SHALL BE LOCATED AND PULLED IN ITS ENTIRETY.

12. THE CONTRACTOR MAY DRIVE UP TO 12 TIMBER PILES (12-INCH DIAMETER) AT EACH END OF THE SWING SPAN TO SUPPORT THE ENDS OF THE SWING SPAN. IN ADDITION, THE CONTRACTOR MAY INSTALL AND TENSION WIRE ROPE TIEDOWNS AS NECESSARY TO ENHANCE THE STABILITY OF THE SWING SPAN.

13. PLACE FLOAT-OUT BARGES (WITH SPUDS REMOVED) DIRECTLY UNDERNEATH EACH CANTILEVERED PORTION OF THE SWING SPAN TRUSS DURING LOW TIDE. UTILIZE FULL BALLAST TO MAINTAIN A LOW POSITION.

14. SECURE THE FLOAT-OUT BARGES BY MOORING TO THE EXISTING FENDER SYSTEM AND THE SWING PIER TO PREVENT LATERAL MOVEMENT OR HORIZONTAL LOADS ON THE SWING TRUSS DURING BRIDGE LIFTING AND FLOAT-OUT OPERATIONS. THE MOORING UNES SHOULD BE CLEARLY MARKED AND ILLUMINATED AT NIGHT IN ACCORDANCE WITH UNITED STATES COAST GUARD REGULATIONS. THE MOORING U NES SHOULD NOT INFRINGE ON THE NAVIGATIONAL CHANNEL.

15. PLACE A WORKING BARGE ADJACENT TO EACH FLOAT-OUT BARGE AWAY FROM THE NAVIGATION CHANNEL ON THE WEST SIDE OF THE SWING PIER UTILIZING SPUDS TO PREVENT LATERAL MOVEMENT.

16. INSTALL TEMPORARY TRUSS STRENGTHENING FOR MEMBERS SHOWN AS REQUIRED. PREPARATION OF THESE LOCATIONS REQUIRES SPECIAL CONSIDERATION DUE TO LEAD PAINT. THE CONTRACTOR SHALL SUBMIT COMPLETE DETAILED CALCULATIONS AND PROCEDURES FOR THE ENTIRE REMOVAL PROCESS FOR APPROVAL BASED UPON THEIR MEANS AND METHODS PRIOR TO REMOVAL.

17. PLACE SUPPORT POINTS AT EACH CANTILEVERED PORTION OF THE SWING TRUSS ON LOWER CHORD TRUSS JOINTS AT MULTIPLE LOCATIONS AS SHOWN ON THE PLANS.

18. PLACE GRILLAGE ON FLOAT-OUT BARGE AT LOCATIONS SHOWN ON THE PLANS AND INSTALL WIRE ROPE TIE-DOWNS TO THE BARGE WITH ADEQUATE SLACK AS REQUIRED. SHIM AS REQUIRED ALLOWING APPROXIMATELY 6-INCH GAP BETWEEN THE TOP OF THE GRILLAGE AND THE UNDERSIDE OF THE TRUSS LOWER JOINT.

19. PREPARATION OF THE CUT LOCATIONS REQUIRES SPECIAL CONSIDERATION DUE TO LEAD PAINT. ALONG THE CENTERLINE OF THE SWING PIER BAY, CUT

THE DECK, STRINGERS, FLOORSYSTEM LATERAL BRACING AND TOP CHORD LATERAL BRACING ACROSS THE FULL WIDTH OF THE SPAN. REMOVE THE NUTS FOR BOLTS CONNECTING THE INTERIOR TRUSS BEARINGS TO THE TOP FLANGE OF THE DISTRIBUTION GIRDER SUPPORTS. DISCONNECT ANY OTHER CONNECTIONS AS REQUIRED TO PROVIDE FREEDOM OF MOVEMENT FOR LIFT PROVIDED BY THE BARGES.

20. USING A COMBINATION OF DE-BALLASTING AND A RISING TIDE, RAISE BOTH FLOAT-OUT BARGES SIMULTANEOUSLY SUCH THAT THE CANTILEVERED SPANS FULLY BEAR ON THE GRILLAGES. THE INTENT IS TO TRANSFER THE FULL REACTION OF THE SUPPORTED TRUSS CANTILEVERS OF THE SWING SPAN TO THE BARGES. THIS SHALL BE ACHIEVED BY MONITORING THE FREEBOARD AND ELEVATION OF THE TRUSS SUPPORT POINTS, WITH BARGE RAISING OPERATIONS CONTINUING UNTIL THE TRUSS SUPPORT POINTS START TO LIFT.

21. CUT TRUSS MEMBERS ALONG THE CENTERLINE OF THE SWING PIER BAY AT ALL FOUR TRUSSES (SIMULTANEOUSLY) WHILE THE TIDE AND BARGE ARE STILL RISING. DURING THIS CUTTING OPERATION THE VERTICAL ELEVATION OF THE TRUSS SUPPORT POINTS SHALL BE MONITORED TO ENSURE CONTINUED LOAD TRANSFER TO THE BARGE. THE CONTRACTOR SHALL PUMP BALLAST AS REQUIRED. PRIOR TO CUTTING, ALL TRUSS MEMBERS MUST BE CLEANED TO SSPC SP3 FOR A DISTANCE OF 1-0" ON EACH SIDE OF THE PLANNED CUT. ALL CLEANING TO BE PERFORMED WITHIN A CONTAINMENT SYSTEM APPROVED BY THE ENGINEER.

22. UPON LOAD TRANSFER TO GRILLAGES, THE ELEVATIONS OF THE BARGES SHALL BE CONTINUOUSLY MONITORED AND MAINTAINED CONSTANT AND LEVEL BY BALLAST ADJUSTMENTS TO COMPENSATE FOR TIDAL VARIATION.

23. FLOAT-OUT EACH CANTILEVERED PORTION OF THE SWING TRUSS SPAN INTO BOSTON HARBOR AND PAST THE MERIDIAN STREET BRIDGE ON THE CHELSEA RIVER TO THE STORAGE YARD.

24. REMOVE THE DISTRIBUTION GIRDERS, DRUM GIRDER, CIRCULAR RACK ON THE TOP OF THE SWING PIER AND ALL STRUCTURAL STEEL AND OTHER MATERIALS WITHIN THE SWING PIER PIT. TRANSPORT THESE MEMBERS TO THE STORAGE YARD.

REMOVAL OF SPAN 1 TRUSS

25. PLACE REMOVAL BARGES DIRECTLY UNDERNEATH THE SPAN 1 TRUSS.

26. REMOVE THE DECK AND FLOORSYSTEM IN THE MIDDLE BAY AS SHOWN ON THE PLANS AND REMOVE THE DECK IN THE OUTER BAYS. PROVIDE CONTAINMENT BELOW ALL BAYS TO PREVENT DEBRIS FROM FALLING INTO WATER AND IN ACCORDANCE WITH THE CONTRACTOR'S APPROVED LEAD ABATEMENT PLAN AND SPECIAL PROVISIONS.

27. PLACE FLOAT-OUT BARGES (WITH SPUDS REMOVED) DIRECTLY UNDERNEATH EACH HALF OF THE SPAN 1 TRUSSES DURING LOW TIDE. UTILIZE FULL BALLAST TO MAINTAIN A LOW POSITION.

28. SECURE THE REMOVAL BARGES AND FLOAT-OUT BARGES BY MOORING TO THE EXISTING EAST ABUTMENT AND PIER 1 TO PREVENT LATERAL MOVEMENT OR HORIZONTAL LOADS ON THE TRUSS DURING BRIDGE LIFTING AND FLOAT-OUT OPERATIONS. THE MOORING LINES SHOULD BE CLEARLY MARKED AND ILLUMINATED AT NIGHT IN ACCORDANCE WITH UNITED STATES COAST GUARD REGULATIONS.

29. PLACE A WORKING BARGE ADJACENT TO THE FLOAT-OUT BARGES AS NEEDED UTILIZING SPUDS TO PREVENT LATERAL MOVEMENT.

30. INSTALL TEMPORARY TRUSS STRENGTHENING FOR MEMBERS SHOWN ON THE PLANS. THE CONTRACTOR SHALL SUBMIT CONNECTION DETAIL CALCULATIONS AND PROCEDURES FOR REVIEW AND APPROVAL BY THE ENGINEER PRIOR TO REMOVAL.

31. PLACE SUPPORT POINTS AT EACH HALF OF THE SPAN 1 TRUSS ON LOWER CHORD TRUSS JOINTS AT MULTIPLE LOCATIONS AS SHOWN ON THE PLANS.

32. PLACE GRILLAGE ON FLOAT-OUT BARGES AT LOCATIONS SHOWN ON THE PLANS AND INSTALL WIRE ROPE TIEDOWNS TO BARGE WITH ADEQUATE SLACK AS REQUIRED. SHIM AS REQUIRED ALLOWING APPROXIMATELY 6-INCH GAP BETWEEN THE TOP OF THE GRILLAGE AND THE UNDERSIDE OF THE TRUSS LOWER JOINT.

33. USING A COMBINATION OF DE-BALLASTING AND A RISING TIDE, EACH FLOAT-OUT BARGE (ONE AT A TIME) FULLY ENGAGING THE GRILLAGES. UPON LOAD TRANSFER TO GRILLAGES, THE ELEVATIONS OF THE BARGES SHALL BE MONITORED AND ADJUSTED WITH BALLAST AS NECESSARY. TENSION WIRE ROPE TIEDOWNS TO SNUG-TIGHT CONDITION.

34. FLOAT-OUT EACH HALF OF THE SPAN 1 TRUSS SPAN INTO BOSTON HARBOR AND PAST THE MERIDIAN STREET BRIDGE ON THE CHELSEA RIVER TO THE STORAGE YARD.

REMOVAL OF SPAN 2 TRUSS

35. REPEAT SEQUENCE ITEMS 25 TO 34 FOR THE SPAN 2 TRUSS.

REMOVAL OF SUBMARINE CABLE

36. REMOVE ELECTRIC SUBMARINE CABLE FROM PIER.

FENDER SYSTEM

37. INSTALL ADDITIONAL FLOATING FENDER SYSTEM AROUND THE SWING PIER AND PIER 2 AT LOCATIONS SHOWN ON THE PLANS.

38. PROVIDE SOLAR POWERED LIGHTING TO FENDER AND PIERS AS IDENTIFIED IN THE SPECIAL PROVISIONS.

IMPORTANT LAST ITEMS

39. INSTALL FENCE AND CONCRETE BARRIERS AT BOTH ENDS OF THE BRIDGE.

40. PERFORM SURVEY OF THE CHANNEL BOTTOM AT THE BRIDGE (BOSTON) WITHIN THE LIMITS SHOWN IN THE 2010 HYDROGRAPHIC SURVEY PROVIDED IN APPENDIX A OF THE CONTRACT DOCUMENTS. IN ADDITION, THE CONTRACTOR SHALL OBTAIN LOW TIDE COLOR PHOTOGRAPHS OF THE TIDAL FLAT AREA ADJACENT TO THE STORAGE YARD (EAST BOSTON).

41. COMPLETE FINAL REMOVAL OF ANY IDENTIFIED CONSTRUCTION DEBRIS.

CIP 16-93 SHEET 4 OF 14



SUGGESTED CONSTRUCTION SEQUENCE 1 OF 2

SCALE: AS NOTED

DATE: FEB 2016

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CITY OWNED STORAGE YARD AT EAST EAGLE STREET IN EAST BOSTON 15. REPOSITION FLOAT AND ADJUSTABLE TRANSPORT RAMP AS NECESSARY TO RECEIVE THE APPROACH SPAN TRUSSES.

PLEASE NOTE THAT THIS STORAGE YARD HAS SPECIFIC ENVIRONMENTAL 16. SPMT'S REPEAT PROCESS AS BARGES CARRYING THE FOUR APPROACH SPAN CONSIDERATIONS. THE CONTRACTOR IS NOT ALLOWED TO PUNCTURE OR TRUSS PIECES ARRIVE AT THE STORAGE YARD. PENETRATE THE TOP SURFACE OF THE YARD. CONSTRUCTION ACTIVITIES AT THE EDGE OF THE YARD ADJACENT TO THE WATER SHOULD MINIMIZE DISTURBANCE OF 0FM0B1117F YARD IN-SITU MATERIAL AS MUCH AS POSSIBLE.

MOBILIZE YARD 17. REMOVE FLOAT, ADJUSTABLE SUPPORT RAMP, STEEL TRESTLE, AND ANY STEEL PLATES OR CRANE MATS PLACED AND POSITIONED FOR CONTRACTOR OPERATIONS.

1. PREPARE THE YARD BY CLEARING THE WORK AREA TO A FLAT SURFACE.

TREES AND OTHER VEGATATION SHOULD BE CUT HORIZONTALLY AT TFIE 18. CONSTRUCT A NEW FENCE AT THE EDGE ON THE BANK IN THE SAME

GROUND LINE ONLY IN AN ATTEMPT TO AVOID ENVIRONMENTAL DISTURBANCE. POSMON AS THE ORIGINAL FENCE. THE FENCE ADJACENT TO THE WATER SHOULD BE REMOVED TO THE EXTENT NECESSARY TO FACILITATE THE CONTRACTORS OPERAHONS. OTHER YARD COMPONENTS, OBSTRUCTIONS, OR DEBRIS SHOULD BE REMOVED BY THE CONTRACTOR IN COORDINATION WITH THE CITY.

2. MARKOUT THE FINAL LAYOUT AREAS FOR THE PIECES THAT WILL BE TRANSPORTED AND RECEIVED AT THIS SITE AND THE INTENDED POSITION OF CRANE AND PATH(S) OF SPMT'S (SELF-PROPELLED MODULAR TRANSPORTS). THE PIECES MOVED TO THIS SITE INCLUDE BOTH HALES OF THE SWING TRUSS, TWO APPROACH TRUSS PIECES FROM TRUSS SPAN 1, TWO APPROACH TRUSS PIECES FROM TRUSS SPAN 2, AND SALVAGE/HISTORIC ITEMS.

3. PLACE STEEL PLATE OR CRANE MATS ON TOP OF THE EXISTING GROUND TO FACILITATE CONTRACTOR PROPOSED OPERATIONS AS NECESSARY.

YARD CONSTRUCTION

4. CONSTRUCT A TEMPORARY STEEL TRESTLE TO SPAN BETWEEN THE ADJUSTABLE TRANSPORT RAMP AND THE STORAGE YARD.

5. FLOAT-IN THE ADJUSTABLE TRANSPORT RAMP (FABRICATED OFF-SITE) AND CONNECT THE LAND SIDE END OF THE RAMP TO THE FIXED TRESTLE. THIS RAMP MUST LAUNCH ON TOP OF THE BARGE AND BE POSMONED TO ALLOW SPMT'S TO TRANSPORT VARIOUS PIECES OF THE STRUCTURE.

6. THE RIVER SIDE END OF THE ADJUSTABLE TRANSPORT RAMP SHALL BE SUPPORTED BY AN ADJUSTABLE FLOAT TO ACCOMMODATE THE FLOAT-IN BARGES. THIS FLOAT WILL NEED TO BALLAST AS NECESSARY TO INTERFACE WITH THE FLOAT-IN BARGES, MOVE LATERALLY (TOWARDS LAND AND AWAY FROM LAND ALONG THE RAMP) TO ACCOMDATE POSITIONING OF THE BARGES, AND PROVIDE SUPPORT FOR THE ADJUSTABLE TRANSPORT RAMP PRIOR TO AND AFTER BARGE OPERATIONS. THE FLOAT IS ALSO INTENDED TO KEEP THE END OF THE RAMP OUT OF THE WATER.

RECEIVE SWING TRUSS AND APPROACH SPAN TRUSSES

7. SPMT'S ARRIVE ON-SITE AND ARE POSITIONED TO RECEIVE THE TRUSSES.

8. IMPORTANT - STEPS 12 TO 16 MUST BEGIN ON A RISING TIDE AND BE COMPLETED WHILE ADEQUATE DRAFT REMAINS IN THE TIDAL BASIN WORK AREA DURING ONE TIDE CYCLE SO THAT THE STRUCTURE IS NOT STRANDED ON THE FLOAT-IN BARGE.

9. FIRST HALF OF SWING TRUSS ARRIVES AT THE STORAGE YARD VIA BARGE WHILE THE TIDE IS RISING. THIS FLOAT-IN BARGE IS PLACED ADJACENT TO THE ADJUSTABLE TRANSPORT RAMP AS SOON AS DRAFT IS AVAILABLE AND MOVED TOWARDS THE STORAGE YARD, PUSHING THE FLOAT. THIS PROCESS LAUNCHES THE RAMP ON TOP OF THE BARGE DIRECTLY UNDERNEATH THE SPMT SUPPORT LOCATIONS ON THE TRUSS.

10. REPOSITION THE FLOAT OUT OF THE WAY AND PUSH THE FLOAT-IN BARGE TOWARDS THE TRESTLE.

11. SPMT TRAVELS FROM THE STORAGE YARD, ONTO THE TRESTLE AND ONTO THE RAMP THAT IS NOW ON TOP OF THE BARGE. POSITION SPMT DIRECTLY UNDER THE SPMT SUPPORT LOCATIONS ON THE TRUSS.

12. PICK UP TRUSS AND SLOWLY (IN A CONTROLLED MANNER) MOVE THE

TRUSS USING THE SPMT'S ONTO THE TRESTLE, ONTO LAND, AND ONTO THE .......-40 FINAL LAYOUT POSITION FOR THAT TRUSS PIECE.

G CIP 16-93 SHEET 5 OF 14 13. MOVE BARGE AWAY AND REPOSITION FLOAT TO SUPPORT ADJUSTABLE

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14. POSITION SPMT'S TO RECEIVE SECOND HALF OF SWING TRUSS AND REPEAT 2-5-m4

CRY OF BOSTON PUBLIC WORKS DEPARTMENT ENGINEERING DIVISION

NORTHERN AVENUE BRIDGE CONSTRUCTION - PHASE 1 PROCESS UNTIL BOTH HALFS OF THE SWING TRUSSES ARE RESTING IN THEIR FINAL LAYOUT POSITION. SURVEY BY NONE SUGGESTED CONSTRUCTION

DRAWN BY CCJ SEQUENCE 2 OF 2 5

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NOTES

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NORTH EXTENSION

11

1. FOR GENERAL NOTES AND SUGGESTED CONSTRUCTION SEQUENCE, SEE SHEETS 2, 4 AND 5.

1 2. PRIOR TO COMMENCING WORK, THE CONTRACTOR SHALL OBTAIN PHOTO DOCUMENTATION OF THE

AIR TANK ENTIRE EXTERIOR AND INTERIOR OF HOUSE. THIS DOCUMENTATION SHALL BE PERFORMED BY AN

I (SEE NOTE 3)

ARCHITECTURAL HISTORIAN OR OTHER QUALIFIED PERSONNEL APPROVED BY THE REGULATORY AGENCY.

L___, AIR COMPRESSOR

ASPHALT SHINGLES (TYP.) _ = '

3. THE TENDER'S HOUSE IS KNOWN TO CONTAIN ASBESTOS-CONTAINING MATERIALS (ACM), POLYCHLORINATED BIPHENYLS AND LEAD CONTAINING PAINT (LCP). SEE SPECIAL PROVISIONS

11

ANNI. Am. I (SEE NOTE 3) _

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BOARDED DOOR (rep.) (PCB's), FOR TREATMENT AND DISPOSAL OF THESE HAZARDOUS/REGULATED MATERIALS.

4. ALL TANKS AND COMPRESSORS SHALL BE DISCONNECTED AND REMOVED FOR RELOCATION TO THE .UIU US ;H STORAGE YARD. IN ORDER TO GAIN ACCESS TO REMOVE THESE ITEMS, THE ROOF SHALL BE

- REMOVED. WOOD SHINGLES (TYP.)

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5. THE ENTIRE HOUSE SHALL BE REMOVED AND DISPOSED.

1 .imp. ..91( mimr, WATER TANK

6. FOR ADDITIONAL INFORMATION REGARDING THE HOUSE, THE CONTRACTOR IS DIRECTED TO THE REFERENCE DOCUMENTS IN APPENDIX A OF THE CONTRACT DOCUMENTS, SPECIFICALLY THE AUGUST

(SEE NOTE 3) TIMBER PILES 2011 DESIGN SKETCHES FOR WEATHERIZING AND PROTECTION OF THE TENDER'S HOUSE. (TYP.)

7. THE ELECTRICAL SHALL BE DE-ENERGIZED AND REMOVED.

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RECEIVER TANKS (TYP.) (SEE NOTE 3)

0,0 OF

PAUL G CIP 16-93 SHEET 6 OF 14

NOP 'OH

, PLL 321e6 4

SOUTH EXTERIOR ELEVATION '..,"Mt. CITY OF BOSTON PUBLIC WORKS DEPARTMENT PLAN VIEW (EXISTING INTERIOR COMPONENTS) SCALE: NOT TO SCALE 0....4 ENGINEERING DIVISION

..... SCALE: NOT TO SCALE z -5 -zot 0 NORTHERN AVENUE BRIDGE CONSTRUCTION - PHASE 1

L'. . SURVEY BY NONE TENDER'S HOUSE REMOVAL

DRAWN BY BB

..- CHECKED BY FOP

.-- SCALE: AS NOTED DATE: FEB 2016

CITY ENGIN ErR--Ns

,:3

Q BRIDGE

WORK BARGE (TYP.) LJMITS OF WORK BARGE (TYP.) [SWING SPAN A3)

SUPERSTRUCTURE *ft,.

--1 - EXTERIOR ..

0 00 I D

I .0

SUGGESTED TRUSS SUPPORT LOCATION (TYP.)

.- ----

/

/

../__

.,..„ 1

\

\ L LIMITS OF SWING PIER \

X X

\

1

X

TRUSS Al

/FLOAT OUTBARGE (TYP.)

ALL PILES BEHIND FENDER CUT TO 3-0" q INTERIOR TRUSS 81

i/-

:0 I

- \ ABOVE MUDLJNE (TYP.)

q SWING SPAN SUPERSTRUCTURE

co \ __

r 0

X \ \

\ ,

7 /

/ .---

)1€129 TONS (1YP.) 26 TONS (TYP.) (SEE NOTE 4) (SEE NOTE 4)-

82 TONS (TYP.) 18 TONS (TYP.) (SEE NOTE 4) (SEE NOTE 4)-A .

x

Q INTERIOR TRUSS B1

q EXTERIOR TRUSS Al

I

81.B 813 8_83 Bali 8Th6 8&8 8L8 8 .8.3 88i88 Ba 8 838 _Fs_ L.8 _I II__8 .3. 8_8 _3. :

REAR BATTERED PILE POINT CHANNEL

(TYP.) (SEE NOTE 3) .....FORT

8 A 8.8 _S _3. 8_8 _8 .8_ 8_B

BOSTON HARBOR

_8_ 8.8 g_ 8L 8 _8 3_ 8.8 8 _8 8_ 8$ 8_ 8 _B 3.8 (t, 8

NAVIGATION REMAINING FENDER SYSTEM BEYOND 71 CHANNEL THIS LINE NOT SHOWN FOR CLARITY

NOTES

GENERAL PLAN OF SWING SPAN 1. FOR GENERAL NOTES AND SUGGESTED CONSTRUCTION SEQUENCE, REFER TO SHEETS 2, 4

AND 5.

SCALE: f16"

141-3±

= 1-0"

SWING PIER

SUGGESTED CUT LINE FOR TRUSS MEMBERS AFTER

........7„..7.7

.--

BARGE SUPPORT IS IN PLACE

141'-3"±

2. FOR EXISTING STRUCTURE INFORMATION, THE CONTRACTOR IS DIRECTED TO APPENDIX A OF THE CONTRACT DOCUMENTS.

3. THE CONTRACTOR IS NOTIFIED THAT THE REAR BATTERED PILES TO REMAIN WILL PRESENT A RESTRICTION TO THE FLOAT-OUT BARGE ALONG THE BACK OF THE FENDER PORTION TO REMAIN.

4. THE WEIGHT OF EACH SECTION OF THE BRIDGE TO BE UFTED BY BARGE FOR FLOAT-OUT IS ESTIMATED TO BE APPROXIMATELY 510 TONS. IT SHOULD BE NOTED THAT THE SUPPORT LOCATIONS, LOADS, ETC. ARE BASED ON THE SUGGESTED PROCEDURE ON THIS SHEET. THE CONTRACTOR SHALL DETERMINE AND SUBMIT THEIR PROPOSED PROCEDURE FOR REVIEW AND APPROVAL. THE ESTIMATED LOADS AT EACH OF THE FOUR TYPES OF PICK POINTS ARE IDENTIFIED IN THE PLAN VIEW.

lb 0

5, 2

01

6 —

6:4

00

m

(FLOAT-OUT SECTION

MEMBER TO BE BRACED (TYP.) (SEE NOTE

U1

U9 U10 _ ---1\

---Un —

N. — 7F---

/

I \ X/ I \ /1\ /

K , -\

LENGTH) U15 _..--1 . --

5) U1 I \

U1 \ I

1 / I z I

— I I \ \

10.-6-± I I \

(FLOAT-OUT

— U16 -...-._

7

/ _ 18

\ I

— /

/ / x I.

SECTION LENGTH)

U19 U20

- 717 - — U21 U22

--- — 71

\ / \ I I ' /1\ / 1 1 > X X

I

5. TRUSS MEMBERS HIGHLIGHTED WITH THICK SOLID LINES ARE SUBJECTED TO COMPRESSIVE FORCES DURING FLOAT-OUT. PRIOR TO LIFTING BY BARGE, MEMBER COMPONENTS (EYEBARS) FOR THESE MEMBERS SHALL BE ADEQUATELY BRACED. THE EYEBARS AT EACH BRACE POINT MAY BE BRACED TOGETHER BY CLAMPING WITH PLATES AND THREADED RODS, WITH BLOCKING BETWEEN EYEBARS TO MAINTAIN EXISTING SPACE BETWEEN EYEBARS. IN ADDITION, THE HIGHLIGHTED DIAGONAL MEMBERS SHALL BE EXTERNALLY BRACED AS REQUIRED BY PROVIDING COMPRESSION STRUTS TO PREVENT BUCKLING IN THE PLANE OF THE TRUSS.

6. AT THE LIFTING LOCATIONS, THE TRUSS BOTTOM CHORD AND PIN SHALL BE ADEQUATELY BLOCKED TO ENSURE FULL LOAD TRANSFER TO THE TRUSS.

I / \ I / \ I / \ V \PAO 1

L9 lilai L12 I i

L13 L15

/ N.

LI 6

r---/

17 I L18

Frrrrd

/ \ / \ I / \ I 7. AFTER UFTING BY BARGE AND REMOVAL FROM BRIDGE SITE, ADDITIONAL BARGE SECTIONS SHALL BE ATTACHED TO THE BARGE AT ONE END OF THE BARGE LENGTH TO ENABLE

L2ONL L21\I/ \ I PICK AT BOTTOM CHORD PANEL POINTS L14 St L17 AT EACH TRUSS PRIOR TO ROLL OUT L19 MCI L22 AT THE STORAGE YARD.

krrrrI ., . C.G. OF FLOAT-OUT xmarmx

8. THE CONTRACTOR SHALL MAINTAIN THE BARGE LEVEL IN BOTH DIRECTIONS AT ALL TIMES =--------GRILLAGE

mamma SECTION (TYP.) mmx.mm SYSTEM (TYP.) ... .. BY BALLASTING THE BARGE AS REQUIRED. C.

9. FOR EXISTING CROSS-SECTION OF SWING SPAN, REFER TO B-16- 184_06-11-30_01.TIF,

L REHAB REHAB PDFS IN A OF THE CONTRACT DOCUMENTS. 1974 PDFS &1986 APPENDIX

EA z

PRIOR TO LIFT BY BARGE, DISCONNECT CUT DECK, SUGGESTED TRUSS SUPPORT \___

BOLTS FOR INTERIOR TRUSS B1 BEARINGS STRINGERS, FLOOR LOCATION FOR ROLL-OUT FLOAT-OUT BARGE (TYP.) I SYSTEM BRACING, 1 AT STORAGE YARD (TYP.) APPROX. MUDLINE- \ \

I ETC. PRIOR TO I (SEE NOTE 7) BARGE SUPPORT M

MEAN LOW WATER EL. -5.16

MEAN SEA LEVEL EL -0.30

EAN HIGH WATER EL. 4.33 - it.0

'

s, PAGI'L 1 _I

..

NORIOt4 'Z.' CIP 16-93 SHEET 7 OF 14 ... 321/1e ig

'I f.

t.,

, NI ' GENERAL ELEVATION 40, - -... ex..1 CITY OF BOSTON PUBLIC WORKS DEPARTMENT

SCALE: Tig" = 1-0" 2-5-2o te, ENGINEERING DIVISION


SURVEY BY NONE SWING SPAN REMOVAL & DRAWN BY CCJ RELOCATION

CHECKED BY FDP

oS

35 1 _ 2 _ 7 SCALE' AS NOTED DATE: FEB 2016

CITY ENG1IJEER

TYPICAL PANEL LENGTH FOR TRUSS B2 END

7 SP. @ 21'-2 = 148.-74"

PANEL ADJACENT TO SWING SPAN

17.-7±

. r, _1 oi

U23

I

1

I

U24 - -- -

MEMBER TO BE BRACED (TYP.) (SEE NOTE 5)

_ - - -- - - __ ____ _

U25 U26 U27 U28 U29 U30

N 17 _ _ __ _ /1

I \ \ / ,

1 / ,

\ / / i

I I I I I \ X / / I \ I X I / I I I

I I / \ I /

I I I NOTES

1 \ / \ / 1. FOR GENERAL NOTES AND SUGGESTED CONSTRUCTION SEQUENCE, REFER TO

I I SHEETS 2, 4 AND 5.

L IL25 SLOPE L29I _ _i. \I/ \.1./. L281 L301 2. FOR EXISTING STRUCTURE INFORMATION, THE CONTRACTOR IS DIRECTED TO L23

SEE NOTE 9-1 L26 L27 APPENDIX A OF THE CONTRACT DOCUMENTS.

1dATI I'GRITI I I

1 I I

limit 1[11111 SEE NOTE 9 3. THE SUGGESTED CONSTRUCTION PROCEDURE IS BASED ON THE FULL

THICKNESS OF THE ROADWAY DECK IN THE TWO EXTERIOR BAYS BEING MEAN HIGH WATER v -GRILLAGE EL. 4.33 SUGGESTED TRUSS SUPPORT i 1111111111 11111111111 REMOVED PRIOR TO LIFTING BY BARGE FOR FLOAT-OUT. IT IS BELIEVED THAT

LOCATION FOR ROLL-OUT AT 1 1 1 1 1 1 , MI SYSTEM (TYP.) z

11111111111 PIER 3 THE ROADWAY DECK CONSISTS OF 2.5" THICK ASPHALT, 6.5" THICK GRANITE MEAN SEA LEVEL v PIER 2 STORAGE YARD (TYP.) 111111[1111 m1111[111 BLOCK LAYER AND 1.5" THICK PAVING SAND LAYER OVER A 6" THICK TIMBER

EL. -0.30 (SEE NOTE 7) DECK. THE CONTRACTOR IS ADVISED THAT THE FLOOR SYSTEM AND TRUSS

- - - -

11111111111

__ _ _ -

11111111111

- - - MEMBERS HAVE AREAS OF ADVANCED SECTION LOSS WHICH HAVE SIGNIFICANTLY

- REDUCED THEIR LOAD CARRYING CAPACITY. SEE CONTRACT BOOK APPENDIX A.

MEAN LOW WATER EL. -5.16-

I I 4. THE WEIGHT OF EACH SECTION OF THE BRIDGE TO BE LJFTED BY BARGE FOR FLOAT-OUT (TWO TRUSSES, FRAMING AND SIDEWALK) IS ESTIMATED TO BE

..N..,NN__ APPROXIMATELY 220 TONS. THE LOAD AT EACH OF THE TWO PICK POINTS PER TRUSS IS ESTIMATED TO BE 60 TONS ON THE EXTERIOR TRUSS A2, AND 50 TONS ON THE INTERIOR TRUSS B2. IT SHOULD BE NOTED THAT THE

FLOAT-OUT BARGE (TYP.) SUPPORT LOCATIONS, LOADS, ETC. ARE BASED ON THE SUGGESTED CONSTRUCTION PROCEDURE SHOWN ON THIS SHEET. THE CONTRACTOR SHALL

GENERAL ELEVATION DETERMINE AND SUBMIT THEIR PROPOSED PROCEDURE FOR REVIEW AND

(SPAN 2, TRUSS A2 SHOWN, APPROVAL.

TRUSS B2 & SPAN 1 SIMILAR) 5. TRUSS MEMBERS HIGHLIGHTED WITH THICK SOLID LINES ARE SUBJECTED TO SCALE: i" = 1.-0" COMPRESSIVE FORCES DURING FLOAT-OUT. PRIOR TO LIFTING BY BARGE,

MEMBER COMPONENTS (EYEBARS) FOR THESE MEMBERS SHALL BE ADEQUATELY BRACED. THE EYEBARS AT EACH BRACE POINT MAY BE BRACED TOGETHER BY CLAMPING WITH PLATES AND THREADED RODS, WITH BLOCKING BETWEEN EYEBARS TO MAINTAIN EXISTING SPACE BETWEEN EYEBARS. IN ADDITION, THE HIGHLIGHTED DIAGONAL MEMBERS SHALL BE EXTERNALLY BRACED AT MIDPOINT TO PROVIDE A COMPRESSION STRUT PREVENTING BUCKLING IN THE PLANE OF

lI' Ilk /Mill ,AIIIVA&V, I All. J- THE TRUSS.

' q PIN WY MWAIFAL. ' : MEM VI, 1.. .mr 6. AT THE LIFTING LOCATIONS, THE TRUSS VERTICAL MEMBER AND THE PIN SHALL

1

VI

IHI

pl I I

SECTION TO BE FLOATED IffH

'1 I

SECTION TO BE REMOVED AND DISPOSED

p

II

<LI SECTION TO BE FLOATED

r.

P

Alb

BE ADEQUATELY BLOCKED TO ENSURE FULL LOAD TRANSFER TO THE TRUSS.

7. AFTER LIFTING BY BARGE AND REMOVAL FROM BRIDGE SITE, ADDITIONAL BARGE SECTIONS SHALL BE ATTACHED TO THE BARGE AT EACH END OF THE BARGE LENGTH TO ENABLE PICK AT BOTTOM CHORD PANEL POINTS L24 & L29 AT EACH TRUSS PRIOR TO ROLL-OUT AT THE STORAGE YARD.

8. THE CONTRACTOR SHALL MAINTAIN THE BARGE LEVEL IN BOTH DIRECTIONS AT

161

fe WI <

OUT BY BARGE (SEE NOTE 4) ."--

1

40.-0" If

...

1

I

PRIOR TO BARGE FLOAT-OUT

Q BRIDGE

...,-

I-

,-,....ii i<4„1

OUT BY BARGE (SEE NOTE 4)

J 4

I ' 40.-0" 4°

. if

I. = n

ALL TIMES BY BALLASTING THE BARGE AS REQUIRED.

9. THE CONTRACTOR IS NOTIFIED THAT THE LOWER CHORD MEMBER L1L2 IN SPAN 1 SOUTH EXTERIOR TRUSS (A ZERO FORCE MEMBER) HAS FALLEN INTO THE WATER. IN ADDITION, THE CONTRACTOR IS CAUTIONED THAT OTHER END PANEL

L7L8, L23L24 L29L30 OF THE EXTERIOR TRUSSES

. IfIl 6.-0" I

I I 22.-8" le/

fil I 22.-8" I

el 22.-8"

I I . 04

LOWER CHORDS L1L2, AND ALSO TYPICALLY EXHIBIT ADVANCED SECTION LOSSES. THE CONTRACTOR SHALL PROVIDE BRACING BETWEEN THE PANEL POINTS OF THESE LOWER CHORD MEMBERS AS NECESSARY TO MAINTAIN THE CONFIGURATION AND INTEGRITY OF THE TRUSSES.

I I If

18.-9± CURB TO CURB 1

I I r REMOVE AND DISPOSE

1

18'-9"± CURB TO CURB

fo I <.. II

I 1

if \

REMOVE DECK (SEE NOTE 3) I I

fl

i .L r

A

cor REMOVE DECK (SEE NOTE 3)

4

< i 1 ' n I it 1 1 I —_-

- I

flD LI] 111 1 ril . JD CD CD 1 CID ,t_-_

i I . .. „..-

at PAUL "ti

G .

o CIP 16-93 SHEET 8 OF 14 a I PIN 411; o 4

1+0.704 W,

N. 32184 r.,'

SUGGESTED TRUSS SUPPORT LOCATION (TYP.)

'-'1• %MA / s '4,

' - Q TRUSS 82 I TRUSS A2

2-5-2414


NORTHERN AVENUE BRIDGE CONSTRUCTION - PHASE 1 I. TRUSS A2 q._ TRUSS 82

NOTE: ROADWAY DECK AND SIDEWALK DECK NOT SHOWN FOR CLARITY. SURVEY BY NONE APPROACH TRUSS SPANS 1 & 2

CROSS SECTION OF APPROACH TRUSS SPAN TYPICAL DRAWN BY JRM REMOVAL 8c RELOCATION _ 5:.

SCALE: 4" = 1.-0" CHECKED BY FOP

11;

i 35 /1 R _ 2 8 _____


8 COY ENGINEtR '..%

/G\ 9

FEN

DER

—

SWIN

G. d

wg,

Plo

tte

d:

Feb

0 5,

2016

—

1 1:4

.0am

I.

e....11

BRIDGE 1111/

LIMITS OF PILES CUT TO 3 FEET ABOVE MUDLINE PRIOR TO SWING SPAN SUPERSTRUCTURE REMOVAL

FENDER TAIL PORTION TO BE REMOVED AND PILES TO BE CUT TO 3 FEET ABOVE MUDLINE

LIMITS OF SWING SPAN LIMITS OF EXISTING TENDER SUPERSTRUCTURE TO BE REMOVED HOUSE TO BE REMOVED

PRIOR TO SWING SPAN

I SUPERSTRUCTURE REMOVAL

r0V01}210-0VEriii BERN ABB ANNOBBBV A BB MOB -0- -1' .1- -1 -0 -0 -8 -0 -11- -if 0 V A B B V V V- BBB V N N 0-10 0-10 0- 0 U8 B B 0 BRA BA a/ x ar x a a a a

H X X ...--- ,.. / L H a a

___- a x a a x m a \ a a a a H

_1

N H x x 0 0 0 0

X

\ N H ---0 — g 7

Lti z

n

hi >

< >

id IY I-0 CC

/ r o 0 pi 7

r aH a H a a 1

a o LIMITS OF B A x I . SWING PIER \ x T a

I a

TO REMAIN a a of 0 W WI X ES x L

v Lo ag I

x a a

\ l'

L a a a a H a a x x a a

1 SWING H x . 7 q. SPAN SUPERSTRUCTURE 1 0

D , Ci D ic ti) Lo

v> I H H . . .

r. \ aH X X X H H H

. . i \ a\ a a a a a a a la

r 0 3. . 0 . N.

I sj

''''', X X I I H

X X H X X x X ,, X I I X 4 1 I

/ X H H X H H 0 H Isf... H X 0 H C/) H . L _„,_ _1 / . . . . a A V a a

/ 0 at a a a] a

xiT — )4'

_ -- 0 . . . . . . 0 . . . . 0 . a a a a a a x a / H a a a a a

, F D 0

o . . Ia.

Liz

Z < a_ v) o V)

0 1-

0 kL8 8 8 8 8 8 8 8 8 8 8 _BA 8 8 8 8 3_8 8 U 8 88 8 88 8 L5 8 8_8 8 _,/ 8_B _8_ 8_B 8 8 8 8 8

EXISTING FENDER SYSTEM TO REMAIN

8 8 8 8 8 8 8 8 8 8 8 8 8 8_ 8 _,8

EXISTING TIMBER WALES (TYP.)

8 8 _8_ 8.! 3, 8 8 9 8 8 _8_ 8 8 8 8 8 _8_ 8 8 8 8 8 _8_ 8 8 8 8_8 _8_ 8_8 _8 _i

EXISTING FLOATING PLASTIC BARRIER SYSTEM WITH PILES TO REMAIN ../

156'-11"± 273'-0"±

FORT POINT CHANNEL BOSTON HARBOR

PLAN OF FENDER AT SWING PIER SCALE: in =

NOTES

1. FOR GENERAL NOTES AND SUGGESTED CONSTRUCTION SEQUENCE, REFER TO SHEETS 2, 4 AND 5.

LEGEND 2. IN ORDER TO FACILITATE SWING SPAN REMOVAL OPERATIONS, ALL PILES UNDER THE SWING SPAN SUPERSTRUCTURE WITHIN THE LIMITS SHOWN ON THIS SHEET SHALL BE CUT AND REMOVED AT AN

0 EXISTING TIMBER PILE TO REMAIN ELEVATION APPROXIMATELY 3 FEET ABOVE THE MUDLINE,

OD EXISTING TIMBER PILES WITH REAR PILE BATTERED TO REMAIN 3. THE WORK ALSO INCLUDES REMOVAL OF ALL BROKEN AND/OR OTHERWISE SUBMERGED TIMBER r, FENDER MEMBERS BELOW THE WATERUNE UP TO AN ELEVATION OF 3 FEET ABOVE THE MUDLINE. ,:.

X EXISTING TIMBER PILE CUT TO 3 FEET ABOVE MUDLINE THERE MAY BE AS MANY BROKEN AND/OR OTHERWISE SUBMERGED MEMBERS AS THERE ARE VISIBLE c CIP 16-93 SHEET 9 OF 14 ABOVE THE WATER UNE. No lc, :_ No. 321. .7:

, Al EXISTING TIMBER PILES WITH REAR PILE BATTERED CUT TO 3 , /* FEET ABOVE MUDLINE 4. DIMENSIONS SHOWN AND EXISTING FENDER CONFIGURATION ARE BASED UPON LIMITED FIELD 1.5. ii_z__, .K;s1

MEASUREMENTS AND OBSERVATIONS AND ARE NOT GUARANTEED. MANY FENDER SYSTEM COMPONENTS APPEAR TO BE MISSING, DAMAGED OR NOT VISIBLE ABOVE THE WATERLINE DUE TO 2-5-zoa, DETERIORATION AND ALLISION. IT IS THE CONTRACTOR'S RESPONSIBILITY TO INSPECT THE FENDER

CRY OF BOSTON PUBLIC WORKS DEPARTMENT ENGINEERING DIVISION


SYSTEM AND VERIFY DETAILS, DIMENSIONS AND OTHER PERTINENT DATA IN THE FIELD PRIOR TO BIDDING. SURVEY BY NONE SWING PIER FENDER SYSTEM

DRAWN BY CCJ REMOVAL 5-

5. FOR DETAILS OF THE FENDER SYSTEM AT THE SWING PIER, THE CONTRACTOR IS DIRECTED TO APPENDIX A OF THE CONTRACT DOCUMENTS.

CHECKED BY FDP -F_

,I; _ 3 5 1 2 _ 9 SCALE: AS NOTED DATE: FEB 2016

CITY ENGINEER

101#1/V

(t.S) BRIDGE

428-6±

ill/ 10 @ 342-0± = 340'-O"±

A „,6,

© 1-- lit,LG 1 f 1 5)Ps u1,11-0

(11 FLOATING BARRIER UNITS) BARRIER PLASTICFS

LYOS

AT

TINGTHNLE

EM wI

Ait- 3 CUR 8 51-6 8 8 A I 8 4000*001004004*4444g a a a a a a a 0- /-11 -10-1f-a1{-0-115-5. -f 5-1-F8-0 -11- 0-4 -E0-0 -4000045 4 a / II X X X X X X X

10H H 0 H H X X /

X X X X X X X' X 1

X 0 . 0

'1'.. X X 0 0 X H 0 n A n A A

0 A n IA ' - 07 -7

L . H . /

r

. . i

n X /

r r a a H /

\ LIMITS OF 0 )0 \ SWING PIER \ TO REMAIN a a a

\ H o x

1

x 1 0

o x,

0 8 0 r H

0 0 0 0 a 0 .1. x Hal x I

If x

''IK 14 X '— —

SWING SPAN SUPERSTRUCTURE I X X . I'

I X

1.0 \ o X H H H H H 10

\ ro, '\

a 0 0 0 H n

A x x x x N 1 : . . . . . . . .

L \

1 X X 0 0 X

/ X X X

/ /

0 a x /0

_ _ ... , - x x 0 A A x x

. . . . . . . . /

.1

I 0

X 0 ,

f

X X X X

X XIX 1 1 X X A 0 X 0 0 .

H 0 N

V

H

g

H L ki : nt ---.

A

I x x A A .

. . . . . . . . . 1

x

81_8 8_8_8 8_8_13 818 8H 8 3_0 8 3_8 8 H 8 LB 8 H 88_B 8 8 8_B _a 8 _3_ 8_8 8 8

EXISTING TIMBER WALES (TYP.)

\.,

8 _8_ a_ 8 8 8 8 8 _a _a_ 8_s _8_ 8__ 8 _,8

EXISTING FENDER SYSTEM TO REMAIN

8_B 8 8_B 1. 8 8 _8_ 8_8 _8_ 8_8 _8,_ 8_8 _8_ 8 8 ii_ 8_8 8 8 8 8_8 _8_ 8_8 J3 __,

EXISTING FLOATING PLASTIC BARRIER SYSTEM WITH PILES TO REMAIN /

FORT PONT CHANNEL BOSTON HARBOR

,

NOTES EXISTING FENDER SYSTEM TO REMAIN

EXIST. TIMBER PILES WITH REAR PILE BATTERED (TYP.)


2. SEE SHEET 11 OF 14 FOR PROPOSED FLOATING PLASTIC BARRIER DETAILS.

-18 8 8-8- -8-- -8-8 8 3 "13--

-- '' EXIST. PIER r — --

..., 8 if 8- 8 -8 -8- 8-8 -6' 9 .., ' a

— ----l J

3. CONTRACTOR TO INSTALL A TYPE II FLOATING SILT CURTAIN COMPLETELY ENCIRCLING THE WORK AREA PRIOR TO DRIVING PILES. SILT CURTAIN TO EXTEND TO THE MUDLJNE.

FOOTING _ _

R.d

wg,

Plo

tted

: Fe

b 1

L _—J __ — --

EXIST. PIER 2

(9 (2 s. "1-P '

FS

LY

OS

AT

TIDA

NGw

PIT

LAH PLASTIC B

EW AR

LERSIER

DW

G\1

0 P

RO

P F

EN

DE

x, LEGEND 4'4, (0 \ as 0 EXISTING TIMBER PILE TO REMAIN G 41' -1, Q _, CO EXISTING TIMBER PILES WITH REAR PILE BATTERED TO REMAIN

-12. 1,,

3 @ 34.-0 = 102'-0" • PAUL' CIP 16-93 SHEET 10 OF 14 (3 FLOATING BARRIER UNITS) t,041C.1 ,

W EXISTING TIMBER PILE, CUT TO 3 FEET ABOVE MUDLINE Nu 1218E a tAt ode

M EXISTING TIMBER PILES WITH REAR PILE BATTERED, CUT TO 3 lA - FEET ABOVE MUDLINE

2-5-2014



_ • PROPOSED TIMBER PILE PLAN OF FLOATING BARRIER SYSTEM PLAN OF FLOATING BARRIER SCALE: lig" = 1-0" SURVEY BY NONE

DRAWN BY CCJ SYSTEM

5-:- CHECKED BY FOP ?

...-

c< — 35 -1 2 _ 1 0 SCALE: AS NOTED DATE: FEB 2016

0

CITY ENGINEEF

4 FLOATING BARRIER UNITS = 34'-0"± SHOWN

I . NEW 12" DIAMETER TIMBER PILE (TYP.)

3 FLOATING BARRIER UNITS = 26.-0± SIMILAR TOP OF NEW PILES TO MATCH EXISTING EL. 8.54± i

,W,evp .

F EXIST. WALE _

L_ 7,-10-± ( TYP.)

i I / r _. 7 ( 1 iiri,

II - I .

6'-0"± (TYP.) ww AVICOBARIVER

E F —L _

nCHAIN CONNECTION FLOATING BARRIER UNIT - / TO PILE (TYP.) iYODOCK MODEL 2001BB (TYP.) MEAN HIGH WATER

C

111 •

l'-10" (M.H.W.) EL. 4.33 1.-7"±

- 1034@=Ig=6f0=

N..

/ \ / \ . MEAN SEA LEVEL -

EXIST. FENDER (M.S.L.) EL. -0.30 PILE TO REMAIN---„............L FLOATING BARRIER

CONNECTION (TYP.) 1

[ 1

(SEE NOTE 5) FLOATING BARRIER UNIT - YODOCK MODEL 2001 BB

L i

I

—__ 1-1_ _.--

EXIST. TIMBER PILES AND FENDER SYSTEM NOT SHOWN FOR CLARITY. NEW PILES TO

BE DRIVEN SO AS TO NOT INTERFERE WITH THE EXISTING PILES AND FENDER

SCALE: N.T.S.

MEAN LOW WATER (M.L.W.) EL -5.16

1 _

I

1 .._....,:. 1--i

SYSTEM

P---1 P---1 Pi r 1 I 1 I I I I I I I 1

hJ hJ 6J 6J —7-‹

I I J

APPROX. MU DLINE [(SEE NOTE 7)

Id

--1 , ks ----

// 7/ / ,,,/ -,... s.,. •-\\., , . Lu....... TYPICAL FLOATING BARRIER CONNECTION DETAIL

in SCALE: N.T.S. 5 NJ, m LI

BOTTOM OF PILE (TYP.)-/' FLOATING PLASTIC BARRIER - TYPICAL ELEVATION

SCALE: in =

NOTES:

is

NEW i" CHAIN

i" SHACKLE TIMBER PILE (TYP.) ANCHOR

(TYP.) TO SHACKLE BOLTED TIMBER PILE i" SHACKLE ANCHOR

FLOATING BARRIER (TYP.) TO


2. SEE PREVIOUS SHEET FOR FENDER PLAN AND ADDITIONAL NOTES.

3. INSTALLATION OF YODOCK MODEL 200183 SHALL CONFORM TO SHACKLE BOLTED MANUFACTURER'S INSTALLATION MANUAL.

FLOATING BARRIER 4. NEW PILE LOCATIONS MAY BE MODIFIED AS REQUIRED TO AVOID

INTERFERENCE MTH EXISTING PILES.

5. CONNECTION BETWEEN FLOATING BARRIER UNITS SHALL CONSIST

1

.--,.......zy

4:5;41.* /7:1::,- -17:—....."'-'"

_\.,...t....r=cv

i--.4•••01

SEGMENTS OF WHITE .......... PVC PIPE ON CHAIN

NOT SHOWN

/.40.- er V

\`:, :574-11-' /

OF TWO i" GALVANIZED SAFETY ANCHOR SHACKLES AND ONE i" GALVANIZED CONNECTION RING.

6. CHAIN CONNECTION AT PILES SHALL CONNECT TO FLOATING

i (2)

SHACKLE

NEW i" SEGMENTS OF WHITE

(TYP.) PVC PIPE ON CHAIN NOT SHOWN

CHAIN CONNECTION TO INTERIOR PILE

4.....,•_,,,.. i,,,,

FLOATING BARRIER (TYP.) (2) NEW i" SHACKLE

CHAIN CONNECTION TO EXTERIOR

BARRIER WITH SAME ANCHOR SHACKLES USED TO CONNECT ADJOINING FLOATING BARRIER UNITS.

FLOATING BARRIER 7. REFER TO HYDROGRAPHIC SURVEY IN APPENDIX A OF CONTRACT DOCUMENTS.

PILE PAut CIP 16-93 SHEET 11 OF 14 G

SCALE: N.T.S SCALE: N.T.S NOCOel ,—, Ho 321AL .,

...„„n,

r•e-vw,



SURVEY BY NONE ELEVATION AND DETAILS OF DRAWN BY GJP FLOATING BARRIER SYSTEM

CHECKED BY FOP 6 .,

3 5 1 2 - 1 1


R r /- CITY ENGINEER

..- ei

5 r

PIER CAP

I,

UNITED STATES COURTHOUSE

1

JOHN JOSEPH MOAKLEY

/ i

LIMITS OF BRIDGE REMOVAL

ailliall1110.112 .0 \

a .4-

I- If III!

i

I I I lE NORTHERN AVE i „ ,k' 1 I 1 .

00. f I I

g n

xT 1 1 1 1 j

- - — — 7 - - - ---- = - - - — ---- — - — - - — - —

.:. „

NEW CHAIN LINK FENCE

NEW CONCRETE BARRIERS

BARKING CRAB RESTAURANT

/ / II / 7 .

/ / / /

In III II

II

1/ III CC ENVOY HOTEL

I- W W

I- W

W CL LIJ LI .__J W

II

FINAL CONSTRUCTION SITE PLAN - EAST APPROACH SCALE- 1" = 20'

BOSTON HARBORWALK U.S. COAST

GUARD BUILDING ABUTMENT CAP NOTES:

/, /Mill/LW/

\ r LIMITS

J OF BRIDGE REMOVAL

1. FOR GENERAL NOTES AND SUGGESTED CONSTRUCTION SEQUENCE. REFER TO SHEETS 2. 4 AND 5.

2/ 2. CONTRACTOR TO PROVIDE TRAFFIC SAFETY MEASURES AT ALL TIMES

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-3, --I

c' Z- --I C.--5

3,

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ON EAST APPROACH AND BOSTON APPROACH SIDES OF THE BRIDGE DURING CONSTRUCTION.

‘-‘ 3. THIS DRAWING SHOWS FINAL CONDITIONS PLAN. INTERIM AND DURING CONSTRUCTION CONDITIONS TO BE MAINTAINED BY THE CONTRACTOR AT ALL TIMES.

4. C

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CONTROL/SAFETY MEASURES AT COMPLETION OF THE CONTRACT IN PERMANENTLY MAINTAINABLE CONDITION. ALL MATERIALS ARE TO BECOME THE PROPERTY OF THE

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71 1 I

V PAG

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Ne. t CIP 16-93 SHEET 12 OF 14 _ ... 3218(

I

1 , - - _

Al,,,, vs_ 0,- CITY OF BOSTON PUBLIC WORKS DEPARTMENT

V 1 ENGINEERING DIVISION

NORTHERN AVENUE BRIDGE CONSTRUCTION - PHASE 1 NEW CHAIN LINK FENCE

NEW CONCRETE BARRIERS SURVEY BY NONE PERMANENT BARRIER LOCATION JAMES HOOK AND DRAWN BY GJP PLAN

COMPANY ANAL CONSTRUCTION SITE PLAN - BOSTON APPROACH SCALE: 1" = 20

CHECKED BY PGN SCALE: AS NOTED DATE: FEB 2016

CITY ENGINEER

I / / N

/ I I - CHELSEA

/ / /

-1>

RIVER / / /

/ / hi

/

LOCATION OF SUBSURFACE ELECTRICAL LINES, CONTRACTOR

TO LOCATE (SEE GENERAL / / 1

NOTES 18 & 19) /

i 1 APPROX. MEAN I 25.-0 MIN. CLEAR. LOW WATER (TYP., SEE NOTE)

1

108.-0" / /

/ / /

aD / / /

, 61.-3" ,

/ / / I I

FLOAT-OUT 1 / / BARGE

APPROX.

/ I /aD

i

106' 0

V

'0 i

a_ m

TEMPORARY TRESTLE / / / MEAN HIGH

WATER ' Iii

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tir —I—F

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I I i / 118,-0- l

-1 ® HALF OF SPAN 1 TURBIDITY \

CURTAIN .1

0 HALF OF SPAN 1 0 0 SALVAGED z o ITEMS 0 23 I

\ .). '\ \ . .

\ 1

NOTES: (r) HALF OF SWING SPAN --I zi 1 / 0 rn

1 /

I

HALF OF SWING SPAN

0

END OF SUBSURFACE ELECTRICAL LINES

LIMIT OF STORAGE YARD AVAILABLE FOR

CONTRACTOR USE

®HALF OF SPAN 2

O HALF OF SPAN 2

1. THE CONTRACTOR SHALL NOT PLACE ANY TEMPORARY OR PERMANENT UNDERGROUND WORKS WITHIN 25.-0" OF THE CONTRACTOR LOCATED SUBSURFACE ELECTRICAL LINES.

2. THE CONTRACTOR'S OPERATIONS SHALL NOT DISRUPT BOSTON PUBLIC WORKS DEPARTMENT ACTIVITIES.

3. THE CONTRACTORS ARE RECOMMENDED TO VISIT THE STORAGE YARD BEFORE BIDDING.

4. FOR ADDITIONAL INFORMATION REGARDING THE SUBSURFACE ELECTRIC LINES AND THE TOPOGRAPHIC SURVEY OF THE YARD, THE CONTRACTOR IS DIRECTED TO APPENDIX A OF THE CONTRACT DOCUMENTS.

5. CONTRACTOR TO COORDINATE WITH CITY FOR ANY CLEARING OR OTHER SITE WORK REQUIRED WITHIN THE LIMITS OF THE STORAGE YARD.

7 PA,

G NO610, CIP 16-93 SHEET 13 OF 14 No. 32166 -

CONTRACTOR'S ACCESS EAST EAGLE STREET

Z-5-2o14


NORTHERN AVENUE BRIDGE CONSTRUCTION - PHASE 1 PLAN OF TRUSS UNLOADING AREA

SCALE: 1" = 60.-0" SURVEY BY NONE STORAGE YARD LAYOUT DRAWN BY KU

CHECKED BY PGN SCALE: AS NOTED DATE: FEB 2016

CITY ENGINEER

85*-0" 100'-0" RAMP TRESTLE 12-0" - _

TIDAL FLOW - VARIES

PIN CONNECTION 12" TIMBER MAT

If

_ 2

8 V-0" FLOAT-OUT

x 108'-O' x 8.-0" BARGE APPROX. MUDLINE -/

- \ 4

I1 2 ----------- 24" 0 1" STEEL PLATE-/ PIPE PILE (TYP.)

W30 STRINGER (Tw.)

i

ELEVATION OF TRESTLE 1 - STEEL PLATE-

FLOAT-OUT BARGE ENGAGING RAMP/FLOAT • 7.--,4-- --A--, ,_,,,,,--

SCALE: A- = 1.-0"

85-0" 100.-0" SECTION 1 - RAMP SUPPORT LINE SECTION

TIDAL FLOW VARIES

RAMP TRESTLE

PIN CONNECTION SCALE: i" = 1.-0"

12'-0"

TIMBER MAT

8 V-0" 108.-0" 8'-0" x x

FLOAT-OUT BARGE APPROX. MUDLINE -•///''''

-------- 24" 0 z_12"

i - - -,'- -

PIPE PI LE (TYP.)

- - — - — - — - — - — - — - — - — - - — - — - -

ELEVATION OF TRESTLE 1" STEEL PLATE

FLOAT-OUT BARGE POSITION FOR TRUSS REMOVAL 3.-4" (TYP.)

SCALE: T16" = 1-0" W30 STRINGERS AND t

FLOORBEAM (TYP.) V

24" 0 PIPE PILE MP.) : o I

a m

Alk

I

\

W 24" 0 PIPE PILE (EXTERIOR PILES WITH NOTES

1" STEEL PLATE (TYP.)

12 2:12 BATTER AS NOTED)

1. FOR GENERAL NOTES AND SUGGESTED CONSTRUCTION SEQUENCE, REFER TO / 2 SHEETS 2, 4 AND 5.

TRESTLE SUPPORT 2. FOR BID PURPOSES, THE UNFACTORED VERTICAL DEAD LOAD OF THE TRUSS ..L,__f_ __,c__1._ I

ID o -

T RES

TLE

.11111111 111.11 ...111

LINE (TYP.) SECTIONS TO BE SUPPORTED BY THE TEMPORARY TRESTLE AND PILES IS APPROXIMATELY 500 TONS.

SECTION 2 - TRESTLE SUPPORT LINE SECTION 3. THE CONTRACTOR IS RESPONSIBLE FOR THE DESIGN OF THE TEMPORARY II

b I MIIIIMIN TRESTLE AND PILES. SEE SPECIAL PROVISIONS FOR DETAILED DESIGN SCALE: i" = 1-0"

REQUIREMENTS.

b 10 l

c. WATER 4. THE CONTRACTOR IS CAUTIONED THAT THERE IS SIGNIFICANT VARIATION OF

DEPTH IN THIS AREA DUE TO THE TIDES. APPROX. MEAN

dEk HIGH WATER 5. THE CONTRACTOR MAY NEED TO DECREASE THE DRAFT BY ADDING ADDITIONAL

_ _ . BARGE SECTIONS TO ENSURE SUFFICIENT AVAILABLE WATER DEPTH TO COMPLETE _ ler

......i.iik„ „dislim..._ 1--- THE UNLOADING PROCESS.

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ET

AIL

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..._ 1

PILE LEGEND: PILE NOTES .1 \

\ 0 PIPE PILE 1. FOR THE SUGGESTED SEQUENCE OF CONSTRUCTION AND TRESTLE CONCEPT INOF \ SHOWN, THE DESIGN AXIAL LOAD PER PILE IS APPROXIMATELY 87 KIPS. c.,-,

BATTERED PIPE PILE (ARROW INDICATES CIP 16-93 SHEET 14 OF 14 .. 1 THE DIRECTION OF BATTER) BASED ON THIS AXIAL LOAD, THE ALLOWABLE STRUCTURAL CAPACITY OF g G-

,

E

-1 THE PILES SHALL BE 117 KIPS. rxxxm N. 32126 ,e0v1., 2. THE ESTIMATED PILE TIP IS 70 FEET BELOW THE MUDLINE. THE MINIMUM

PILE TIP IS 30 FEET BELOW THE MUDLJ NE. t 2.5-7.ML.



:2 TRESTLE AND RAMP DECK AND FRAMING 3. DETERMINATION OF THE DRIVEN PILE CAPACITY, PILE DRIVING CRITERIA, AND

SCALE: 1" = 3C-0" -' PILE INTEGRITY SHALL BE PERFORMED USING THE PDA DRIVING/TESTING SURVEY BY NONE TEMPORARY TRESTLE DETAILS METHOD WITH A FACTOR OF SAFETY OF 3.0. PILES SHALL BE INSTALLED TO ACHIEVE A FACTORED DRIVEN RESISTANCE EQUAL TO OR GREATER THAN DRAWN BY WI'

.1 \ THE FACTORED AXIAL LOAD PER PILE.

CHECKED BY PGN ._

..--

i R _ 35 1 2 _ 1 4 4. THE CONTRACTOR SHALL SUBMIT A PILE SCHEDULE, PILE INSTALLATION, AND

PILE DRIVING/TESTING PLAN FOR REVIEW AND APPROVAL OF THE ENGINEER.

5. THE CONTRACTOR SHALL REMOVE BY EXTRACTION ALL TEMPORARY TRESTLE

SCALE: AS NOTED

(P. set.. L

DATE: FEB 201 6

PILES. NO PILES SHALL BE ALLOWED TO REMAIN. CITY ENGINEER

public notice · the work also includes the removal of an existing submarine cable from the channel...

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