Historic Preservation

  • Historic Preservation
  • Historic Preservation
  • Historic Preservation


  • Location: Boston, Massachusetts
  • Installed: February, 2013 & August, 2015
  • Owner: City of Boston
  • Engineer: U.S. Army Corps of Engineers
  • Contractor: Charter Environmental, Inc.
  • Precast Producer: United Concrete Products Inc.


  • Span: 24 feet x 2; 16 feet
  • Rise: 10 feet
  • Length: 174 feet, 156 feet, 180 feet
  • Cover: 7 feet, 8.5 feet, 7.5 feet
  • Live Load: HL-93
  • Skew Angle: None
  • Type: Arch-Box
  • Finish: Granite Veneer


Muddy River Restoration Project, Boston
24’ x 24’ x 16’ Span x 10’ Rise Arch-Box

Three ECO-SPAN® precast concrete arch-boxes play a significant role in preserving an historical section of Boston. Two of the arch-box bridges featured 24’ spans designed to handle heavy water flow under Riverway Drive and Brookline Ave. The third precast arch bridge was a 16’ span under Louis Pasteur Ave. This area experienced an extreme flood event in 1996 during which damage was estimated at $70 million.

The bridges and wingwalls are supported by 36” diameter x 50’ long drilled caissons. Granite veneers with capstones provide a durable and aesthetic end treatment for each bridge.

The United Stated Army Corps of Engineers New England District undertook a project to restore and prevent flooding along an historic network of rivers known as the Emerald Necklace. This high-profile project along a series of parks created by Frederick Olmsted in the early 1890s included three small bridges.

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