Anderson Memorial Bridge Rehabilitation Project Boston/Cambridge Conceptual D
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Anderson Memorial Bridge Rehabilitation Project Boston/Cambridge Conceptual Stage signnStage esig Conceptual D De Public Meeting Public Information Information Meeting Tuesday, Tuesday, Decem December ber 15, 15, 2009 2009 7:00 7:00 –– 88:30 :30 PM PM Dr. Dr. Martin Martin Luthe Lutherr King, King, Jr. Jr. School School 100 100 Putnam Putnam Avenue, Avenue, Ca Cambridge, mbridge, MA MA Rendering by: Walt Baranowski – Brown, Richardson & Rowe Agenda Accelerated Bridge Program Overview Charles River Basin Projects Anderson Memorial Bridge Rehabilitation Discussion Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 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 Public Information Meeting I Dec. 15, 2009 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 Public Information Meeting I Dec. 15, 2009 Anderson Anderson Memorial Memorial Bridge Bridge Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Anderson Memorial Bridge Weeks Weeks Bridge Bridge Craigie Craigie Bridge Bridge & & Craigie Craigie Drawbridge 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 Public Information Meeting I Dec. 15, 2009 Longfellow Longfellow Bridge Bridge Anderson Memorial Bridge Anderson Anderson Memorial Memorial Bridge Bridge rth JF K Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 No Harvard Stadium Ha rv ar d St . Anderson Memorial Bridge St re et Key Plan Weeks Pedestrian Bridge 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 Public Information Meeting I Dec. 15, 2009 Longitudinal Section Plan Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Existing Bridge Longitudinal Section at Center Arch Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Cultural Resources • Entire Area has Historic Significance – Charles River Basin – National Register Historic District – Anderson Memorial Bridge – Area buildings and structures – JFK Memorial Park • Rehabilitation must follow the ‘Standards for the Treatment of Historic Properties’ This This isis the the site site of of the the “Great “Great Bridge” Bridge” (opened (opened in in 1662) 1662) which which was was considered considered the the first first bridge bridge of of consequence consequence built built in in America. America. Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Briggs Cage – 1926 (Part of N.R. Eligible) CHARLES RIVER BASIN NATIONAL REGISTER HISTORIC DISTRICT (Part of N.R. National Register District Boundaries Cultural Resources Identification Map Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Existing Bridge Section at Crown Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Existing Condition Bridge Element Condition Rating Concrete Arches Fair Brick Ring Arches Poor Parapets & Spandrel Walls Poor Piers and Abutments Wingwalls (along approaches) Stairs Satisfactory Fair Poor Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Existing Condition Brick Arch Ring Netting Netting installed installed to to safeguard safeguard against against falling falling brick. brick. Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Existing Condition Parapet & Spandrel Walls Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Existing Condition Parapet & Spandrel Walls Spandrel Spandrel Wall Wall Section at Springline Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Existing Condition Parapet & Spandrel Walls Spandrel Spandrel Wall Wall Section at Springline Water & ice damage induced by inadequate or inoperable drainage at piers and waterproofing . Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 massDOT ~~a' ~ Highway Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 AUfLERATED BRIDGE nOGRAM Existing Condition Wingwalls & Stairs Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Existing Bridge Deterioration Existing Concrete Arches Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Existing Condition Concrete Arches Concrete deterioration Reinforcing steel corrosion Extensive field investigation Material testing program • • • • Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Condition Assessment & Material Testing of Concrete Arches • Compressive Strength – 12 samples tested – Min. Compressive Strength = 5,410 psi – Avg. Strength = 7,800 psi • Chloride Content – Ranges from 0.27 to 4.70 lbs/cy – Most cores taken in areas w/sound concrete are within the acceptable range (< 1.25 lbs/cy) Half cell potential measurements on underside of concrete arches Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 • Concrete has sufficient strength for current loads • Extensive concrete repairs and protective measures will be required to retain arches • Defining the rehabilitated structure’s “Design Life” is the critical factor Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Condition Assessment of Concrete Arches Previously repaired crack Rehabilitation Needs (based on Conditions Assessment) • Retain existing piers and abutments • Rehabilitate Existing Arches • Restore ornamental features where possible • Replace bridge elements: – – – – Spandrel walls Approach walls Parapets Lighting Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Existing Conditions - Traffic Traffic Element Traffic Signals/Intersections @ Cambridge Approach @ Boston Approach Turn Lane Provisions Existing Condition Level of Service F Level of Service B-C Inadequate Pavement & Markings Poor Pedestrian Accommodations Fair Bike Accommodations No dedicated lanes on bridge or JFK St. Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Charles River Bike and Pedestrian Study • MassDOT’s bike and pedestrian study consultant (Halvorson) is here to listen to ideas and issues specific to this project • Pedestrian and bike access will be coordinated with the potential Charles River Basin Wide improvements • Bridge requirements and constraints will be factored into the study Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Traffic Assessment Cambridge Cambridge Approach Approach • Traffic Analysis is based on future volumes • Pedestrian Access • Bike access and linkages • Connections at both approaches (vehicles, pedestrians and bikes) Boston Boston Approach Approach Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Traffic Assessment West West Sidewalk Sidewalk On-ramp On-ramp Soldiers Soldiers Field Field Road Road No. No. Harvard Harvard St. St. Weld Weld Boathouse Boathouse Park Park at at NW NW corner of corner of bridge bridge Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Traffic Volumes Traffic Volume (vehicles per hour) Bridge - AM Peak Hour Traffic 1,655 Bridge - PM Peak Hour Traffic 1,810 Memorial Dr. - AM Peak Hour 1,720 Memorial Dr. - PM Peak Hour 1,680 Non-motorized User Count * 1,844* (weekday) 1,484* (weekend) (Pedestrians, Joggers + Bicyclists) * The non-motorized counts shown above represent two-hour count totals, taken in September 2009 as part of the Charles River Basin Pedestrian and Bike Study. Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Existing Traffic No. Harvard St. Anderson Bridge (Existing) JFK Street EXISTING ROADWAY SECTIONS Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Existing Traffic No. Harvard St. EXISTING ROADWAY SECTIONS Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Existing Traffic Anderson Bridge (Existing) EXISTING ROADWAY SECTIONS Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Existing Traffic JFK Street EXISTING ROADWAY SECTIONS Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Existing Traffic Memorial Drive EXISTING ROADWAY SECTIONS Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Potential Traffic Concepts 1. Reduce travel lanes from 4 to 3 and provide bike lanes across Anderson Memorial Bridge. 2. Boston approach - close westbound on-ramp to Soldiers Field Road. 3. Enhanced pedestrian connections (eliminate islands, curb modifications…). 4. Cambridge approach - prohibit certain turning movements to enhance the overall pedestrian and vehicular flows. 5. Potential bridge widening to improve travel lane and sidewalk widths. Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Potential Roadway Section w/Bike Lanes th Sou d( n u bo t ton) s o oB aannee L L e BBik ike nnee a L a L ikee BBik nd u o b e) h t g r d No mb r i Ca o t ( Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Anticipated Schedule Note: Firm dates will be established based on an integrated schedule that includes all of the basin projects. Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 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 Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009 Discussion Anderson Memorial Bridge Rehabilitation Project Public Information Meeting I Dec. 15, 2009
