Anderson Memorial Bridge Rehabilitation Project Boston/Cambridge Design Public Information Meeting
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Anderson Memorial Bridge Rehabilitation Project Boston/Cambridge Design Design Public Public Information Information Meeting Meeting Tuesday, Tuesday, August August 23, 23, 2011 2011 6:30 PM – 8:00 PM 6:30 PM – 8:00 PM Dr. Dr. Martin Martin Luther Luther King, King, Jr. Jr. School School 100 100 Putnam Putnam Avenue, Avenue, Cambridge, Cambridge, MA MA Rendering by: Walt Baranowski – Brown, Richardson & Rowe Program Overview • Authorization: – Chapter 233 of the Acts of 2008 – Program must be complete by 2016 • Program Goals: – Improve the Condition of the Commonwealth's Bridges – Stimulate Economic Development and Job Creation – Save Money by Completing Projects Sooner – Complete Projects Efficiently and Innovatively – Provide Access and Opportunity for All – Manage with Transparency and Accountability Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Program Overview- 8 years only • Size and Scope – Former MassHighway: $2.078 billion • rehabilitation or replacement of 189 bridges • preservation of 305 bridges – Former DCR: $906 million • rehabilitation or replacement of 29 bridges • preservation of 50 bridges MassDOT Total Program: $2,984,000,000 Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Anderson Memorial Bridge Weeks Weeks Bridge Bridge Craigie Craigie Bridge Bridge & & Craigie Drawbridge Craigie Drawbridge Western Western Avenue Avenue Bridge Bridge Anderson Anderson Memorial Memorial Bridge Bridge River River Street Street Bridge Bridge BU BU Bridge Bridge Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Longfellow Longfellow Bridge Bridge Agenda Project Overview Traffic Management Construction Staging Schedule Landscaping Discussion Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Anderson Anderson Memorial Memorial Bridge Bridge re e St CAMBRIDGE JF K Anderson Memorial Bridge t Key Key Plan Plan Charles River Harvard Stadium No rth Ha rv ar d St . Weeks Pedestrian Bridge BOSTON Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Existing Bridge • Three-span earth filled concrete arch bridge • 440 feet long (including approaches) • Two 10-foot lanes each way • 10-foot sidewalks on each side of the bridge • Built in 1913 • Historic Bridge – Listed on State and National Registers of Historic Places – Integral component of historic Charles River Basin Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Proposed Cross Section LOOKING NORTH Existing Conditions • 60 Feet Bridge Width • 40 Feet Roadway Width (4 lanes) • 20 Feet for Pedestrians and Bicyclists Proposed • 60 Feet Bridge Width • 31.5 Feet for Vehicles (3 lanes) • 28.5 Feet for Pedestrians and Bicyclists Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Proposed Elevation Anderson Memorial Bridge Rehabilitation Project Harvard Business Square Association Information Meeting July 21, 2011 Proposed Roadway Section w/Bike Lanes ane L e Bik und o b th Sou und o b th N or und o b th N or al k w e d Si BOSTON ane L e Bik alk w e Sid Anderson Memorial Bridge Rehabilitation Project Design Public Hearing I November 3, 2010 CAMBRIDGE Stormwater Improvements • Existing roadway drainage directly discharges to the Charles River • Design improves water quality by minimizing impacts of stormwater runoff • Design addresses the objectives set forth in the following: – Recently implemented MassDOT Impaired Waterbodies Program – DEP Stormwater Management Standards Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Stormwater Improvements Best Management Practices (BMPs) BMP selection & siting considerations: – Site Constraints • • • • • Topography Depth to groundwater Space requirements Historic landscape Existing land uses – Maintenance requirements – Pollutant removal efficiencies Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Stormwater BMP’s Implemented Structural Pretreatment – Boston/Cambridge (Deep sump manholes, catch basins & leaching basins) Replacing the broken outfall – Cambridge Side Vegetation Along River Bank – Cambridge Side Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 List of Permits PERMITS •Massachusetts Environmental Policy Act (MEPA) – ENF Certificate •Boston Conservation Commission – Order of Conditions •Cambridge Conservation Commission – Order of Conditions •Department of Conservation& Recreation (DCR) Construction Permit •USCG General Construction Requirements letter received PERMITS PENDING •U.S. Army Corps of Engineers (ACOE) – PGP Category 2 •Section 106 Approval with the ACOE as the lead agency •National Historic Preservation Act (NHPA) –Section 106 Review •Massachusetts Water Resources Authority (MWRA)-Section 8(m) Permit (final MWRA permit is obtained by Contractor) Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Proposed Treatment of Architectural Details • Rehabilitation and Restoration Wherever Possible • Concrete Masonry Arches • Memorial Marble Tablets and Bronze Sculpture • Replication of Original Details Where Rehabilitation is Not Feasible ca. 1915 Historic Postcard View Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Architectural Details Spandrel Walls, Piers and Abutments ELEVATION OF ABUTMENT & ARCH Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Architectural Details Stair on Cambridge Side ELEVATION OF STAIRWAY EXISTING DETERIORATED CONDITIONS Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Architectural Details Entrance Posts, Memorial Tablets and Sculpture Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Architectural Details Street Lighting – Historic Photos LIGHTS ON BRIDGE WILL BE REPLICATED Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Proposed Improvements Memorial Drive/JFK Street MEMORIAL DR N •Prohibit left turns •Both Memorial Drive left turns •JFK Street southbound left turns •North Harvard northbound lefts JFK STREET W AT BO D SE EL OU H CHARLES RIVER •Modify bridge cross section to include bike lanes, 1 southbound travel lane, and 2 northbound travel lanes •Implement concurrent pedestrian phasing and LPI, rather than exclusive phasing used today •Modify traffic signal timing and phasing and upgrade equipment Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Advantages of Transportation Improvements Mode Pedestrians Bicycles Measure Benefit Concurrent phasing and leading pedestrian interval LPI allows pedestrians to start crossing before moving traffic. Concurrent phasing reduces the wait for the walk and lengthens the walk phase Elimination of raised delta islands at Soldiers Field Rd Shorter crossing times, narrower crossing widths and less conflicts with vehicles Smaller corner radii at Soldiers Field Rd Improved pedestrian crossing area Dedicated north and south bike lanes added on Anderson Bridge Removes bikes from sidewalks and eliminates conflicts with pedestrians. Bikes no longer share travel lane with vehicles Striped bike lanes Provides connectivity with North Harvard Street and JFK Street Relocated pedestrian signal Provides connectivity with bike path Prohibited left turns at Memorial Drive/JFK St Will eliminate left turn conflicts between vehicles and pedestrians and bicyclists. Reduce crashes. Shorten the vehicle queues. Allow the bridge to efficiently process the vehicle volume with the new cross section Interconnected and coordinated traffic signals at Storrow Drive and Soldier’s Field Road Improved vehicle operations and reduction in vehicle queues Upgraded signal timing and phasing Reduced vehicle delays and queues Vehicles Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Existing Conditions Soldiers Field Road/North Harvard Street Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Proposed Improvements Soldiers Field Road/North Harvard Street Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Existing Conditions Soldiers Field Road/North Harvard Street Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Proposed Improvements Soldiers Field Road/North Harvard Street Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Existing Conditions Soldiers Field Road/North Harvard Street Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Proposed Improvements Soldiers Field Road/North Harvard Street Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Existing Conditions Soldiers Field Road/North Harvard Street Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Proposed Improvements Soldiers Field Road/North Harvard Street Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Improved Pedestrian Access 5’-0” Existing 6’’--6” 16’ Proposed Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Traffic Modeling Construction Impacts Basin-Wide Model Utilized (Existing – 2012 Conditions) Partial Closure and Construction Impacts noted Criteria Utilized >50 vehicles during 7-9 AM and 4-6 PM periods reviewed Existing poor LOS Intersection downgrades in LOS Other traffic criteria Percentage increase noted Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Traffic Modeling Construction Impacts Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Traffic Modeling Construction Impacts Full/Partial Closure Likely Left-turn Diversion Paths Mitigation Signal Timing Signal Phasing Lane Reallocation Public Outreach Variable Message Signs Public Notices Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Staged Construction Existing Roadway Section Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Stage 1 Rehab Middle Section of Bridge Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Stage 2 Rehab East Side (Downstream) of Bridge Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Stage 3 Rehab West Side (Upstream) of Bridge Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Stage 4 Complete Road Construction Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 In-River Construction Staging • Certain work activities must be staged from barges in the river • Staging criteria for in-river work will be mandated to minimize the impacts on Boaters • Key staging elements include: – Mandate that the Contractor can only occupy one arch barrel at a time. – Safety measures, including continuous buoys with lights will be utilized around in-river work zone. – Barges and in-river work zones will be broken down such that all three barrels are open for special events. Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 In-River Construction Staging Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 In-River Construction Staging ANDERSON ANDERSON IN-RIVER IN-RIVER STAGING STAGING PLAN PLAN -- SOUTH SOUTH ARCH ARCH SHOWN SHOWN CONTINUOUS FLOATING BOOM WITH SAFETY CANS WILL BE PROVIDED AROUND WORK ZONES BU BRIDGE PROJECT Anderson Memorial Bridge Rehabilitation Project Harvard Business Square Association Information Meeting July 21, 2011 NE BO WE AT LL HO US E In-River Construction Staging •Existing condition has 3 arch barrels available for use D SE EL U W HO AT BO Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 NE BO WE AT LL HO US E In-River Construction Staging •Existing condition has 3 arch barrels available for use •Contract has specific staging requirements for contractor Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 D SE EL U W HO AT BO – Continuous floating boom with safety cans – Layout of protection – Advanced Notice Signage – Controlled access for support Skiff NE BO WE AT LL HO US E In-River Construction Staging – Head of the Charles Regatta – As directed by the Engineer Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 D SE EL U W HO AT BO •Existing condition has 3 arch barrels available for use •Contract has specific staging requirements for contractor •Requirements to clear all 3 barrels for Special Events: Anticipated Construction Duration 2011 Stage / Activity Duration Q1 Q2 Q3 2012 Q4 Q1 Q2 Q3 2013 Q4 Q1 Q2 Q3 2014 Q4 DESIGN PS&E August-11 Procurement 3 months CONSTRUCTION 30 months Notice to Proceed Mobilization 1 days 4 months Major Construction 24 montths Stages Punch List 2 months Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Q1 Q2 Q3 2015 Q4 Q1 Q2 Park Landscape Restoration Restore landscape after construction in a manner consistent with DCR Charles River Basin Master Plan • Plant native grasses and wildflowers in crevices in riprap on Cambridge river bank. • Plant ferns, wildflowers and grasses on Boston river banks. • Aerate soil and plant new shade trees (DCR Master Plan). • Install porous paving path along river and bituminous concrete path along Memorial Drive. Plant Lindens and Red Maples along Soldiers Field Road. Plant Swamp White Oaks, Tulip Trees and Yellowwood along path. Move river path 25’ back from riprap. Plant new Red Maples on both sides of bridge. Anderson Memorial Bridge Rehabilitation Project Design Public Hearing I August 23, 2011 Protect existing trees such as Elms, Plane Trees, Lindens and Ash Protect 3 Lindens near boathouse and plant 2 more on other side of bridge. Protect Trees Examples of Trees in Cambridge and Boston Elm in Cambridge Ash in Boston Anderson Memorial Bridge Rehabilitation Project Design Public Hearing I August 23, 2011 Proposed Tree Protection Method Install tree protection fencing at edge of drip line. Attach 8’ high by 2”x 4” lumber to tree within the fenced area. Anderson Memorial Bridge Rehabilitation Project Design Public Hearing I August 23, 2011 Seed gaps in riprap on Cambridge side with Native Wildflowers and Grasses Black-eyed Susan White Clover Blue Flag Iris and Little Blue Stem Wild Geranium and Wild Lupine Anderson Memorial Bridge Rehabilitation Project Design Public Hearing I August 23, 2011 Install Herbaceous Native Plant Plugs in gaps in riprap on Cambridge side Bristleleaf Sedge Soft Rush Great Blue Lobelia Anderson Memorial Bridge Rehabilitation Project Design Public Hearing I August 23, 2011 White Turtlehead Plant Ferns and Wildflowers on slope and seed with restoration mix below sidewalk on Boston side Blue Flag Iris near river’s edge Switchgrass Hay-scented Fern on high &dry slope Gray Goldenrod Anderson Memorial Bridge Rehabilitation Project Design Public Hearing I August 23, 2011 Aerate Soil & Plant New Shade Trees Swamp White Maple Red Maple Yellowwood Anderson Memorial Bridge Rehabilitation Project Design Public Hearing I August 23, 2011 Tulip Tree Improve Path System • Install concrete sidewalks on Anderson Memorial Bridge. • Install new bituminous concrete path along Memorial Drive widened to 10 feet. Replace 5’ wide gravel river path with 10’ wide porous paving path. • Install porous paving path from base of bridge stairs to a new 10 foot wide path along Charles River 25 feet back from riprap. Anderson Memorial Bridge Rehabilitation Project Design Public Hearing I August 23, 2011 Replace 5’ wide path with new 10’ wide bituminous path. Install new Porous Path 25 feet back from Riprap on Cambridge side • Made of recycled rubber granules, dry aggregate rock and bonding agent • Has a porosity rate of 250 gallons per hour per square foot Anderson Memorial Bridge Rehabilitation Project Design Public Hearing I August 23, 2011 Project Contact Information • Tracy Osimboni, MassDOT Highway Division Project Manager: Tracy.osimboni@State.ma.us • Stephanie Boundy, Public Outreach Coordinator: Stephanie.Boundy@State.ma.us • • • • www.mass.gov/massdot www.mass.gov/blog/transportation www.twitter.com/massdot www.mass.gov/massdot/charlesriverbridges Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011 Discussion Anderson Memorial Bridge Rehabilitation Project Design Public Information Meeting – August 23, 2011
