When Historic Bridges Must be Replaced Mitigation Options

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When Historic Bridges Must be Replaced
Mitigation Options

• EMO Conference 2007
• Rebecca Spain Schwarz,

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CARYVILLE BRIDGE

• Project
• FDOT District Three
• SR 10 (US 90) over Choctawhatchee River
• Built 1927
• 4 Warren Pony Truss Spans
• Double Leaf Bascule

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CARYVILLE BRIDGE

• Project
• Reconstructed 1952 (Plans Prepared 1943-44)
• Innovative Approach
• Bascule Span Removed / Replaced with Fixed Plate
  Girder
• Converted to Warren Fixed Deck Truss Spans
• Approach Spans Replaced

Photo Goodwin Associates
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CARYVILLE BRIDGE

• Issues
• 5 central spans NRHP eligible (CRAS 1995)

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CARYVILLE BRIDGE

• Mitigation
• MOA Prepared (1997)
• HAER Documentation (1998)
• Marketing required by FHWA

Photos Goodwin Associates
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CARYVILLE BRIDGE

• Process
• Based on marketed bridge in Miami
• Marketing Plan (1998)
• Advertisements and Information Package
• Bids Received and Reviewed

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CARYVILLE BRIDGE

• Outcome
• Old Bridge Demolished
• New Bridge Completed (2002)

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MATHERS BRIDGE

• Project
• Brevard County Public Works Department
• CR 3 over Banana River
• Built 1927 in Nassau County
• Pony Truss Swing Bridge
• Swing Span moved in 1952
• Modern Concrete control tower new approach
  spans built in 1981

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MATHERS BRIDGE

• Issues
• Historic Swing Span NRHP eligible (CRAS 2003)
• County Project
• No Funds for Relocation of Historic Swing Span

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MATHERS BRIDGE

• Mitigation
• Coordinated with SHPO
• MOA Prepared (2003)
• HAER Documentation
• Coordinate with Local Governments Only

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MATHERS BRIDGE

• Process
• HAER Documentation (2004)
• Swing Span Relocated Temporarily

Photo Penny Rogo Bailes
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MATHERS BRIDGE

• Outcome
• Bridge Rehabilitated with New Swing Span and
  Widened Approach Spans Completed in 2006

Photo Hardesty Hanover
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BLACKBURN POINTBRIDGE

• Project
• FDOT District One and Sarasota County
• Blackburn Point Road over Gulf Intracoastal
  Waterway
• Built 1925
• Warren Pony Truss Swing Span (with verticals)
• Previous PDE Study (1987) Resulted in MOA (1991)
• New PDE Study (1999 2000)

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BLACKBURN POINTBRIDGE

• Issues
• Bridge NRHP Eligible (1989)
• USCG Clearance at Intracoastal
• Travel Lane Width
• High Maintenance Costs for Sarasota County
• Casey Key Community Wanted to Keep Historic Bridge

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BLACKBURN POINTBRIDGE

• Mitigation
• HAER Documentation (1992)
• Relocation Options
• Rehab in Place no MOA
• Process / Outcome
• Waiting for Funding for Bridge Rehabilitation

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A. Max Brewer Bridge

• Project and Issues
• FDOT District Five
• Crosses the Indian River connecting Merritt
  Island with the mainland at Titusville (Brevard
  County)
• Built in 1948-49
• Two lane steel deck girder swing span (220 feet
  long) plus concrete approach spans
• Determined NRHP Eligible (2002)

Photo maxbrewerbridge.com
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A. Max Brewer Bridge

• Mitigation/Process/Outcome
• MOA (2003)
• Documentation for SHPO and Local Archive
• Commemorative Marker
• Educational Documentary Video (2005)
• Historical Context for Bridges Along the Indian
  River
• Design/Build for New Bridge Construction
• Scheduled for 2010

Photos Janus Research
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TREASURE ISLAND CAUSEWAY

• Project and Issues
• City of Treasure Island and USGS
• Connects Treasure Island with St. Petersburg over
  Boca Ciega Bay (Pinellas County)
• Consists of causeway, 2 fixed bridges and 1
  central double-leaf trunnion bascule bridge all
  built in 1939
• Art Modern style concrete railings and control
  house
• NRHP eligible (CRAS 2001)

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TREASURE ISLAND CAUSEWAY

• Mitigation/Process/Outcome
• MOA (2002)
• Documentation for SHPO and Local Archive
• Monument with Intact Portion of Historic
• Bridge Railing and a Plaque
• Public Exhibit
• New 21-foot Bascule Bridge
• and 2 Fixed Bridges
• Completed 2007

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Mitigation Options

• HAER Documentation
• Archaeological Monitoring
• Public Education
• Relocation

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• Thank You