Sheep Bridge

• Location: York County, Pennsylvania
• Type:One span pin-connected Pratt through truss, 186 foot length built 1889.
• Purpose of Rehabilitation: Continued vehicular use in original location.
• Year of Rehabilitation: 2010
• Cost of Rehabilitation: $1,134,026.00
• Design Firm: Gannett Fleming
• Contractor: Kinsley Construction, Inc
• Details: This rehabilitation included the cleaning and repainting of the bridge. The deck was replaced, but existing floor beams were retained. The non-original railing was removed and replaced with new guiderail. The new deck is an open metal grate deck. Stone abutments were cleaned, repaired, and repointed as needed.
• View Bridge Documentation (External Link)

Standardsburg Road Bridge

• Location: Huron County, Ohio
• Type: One span rivet-connected Pratt through truss, 128 foot length, built 1926.
• Purpose of Rehabilitation: Continued vehicular use in original location.
• Year of Rehabilitation: 2012
• Cost of Rehabilitation: $904,273.16
• Design Firm: ms consultants
• Contractor: MID-OHIO Structures (Cleaning/Galvanizing by US Bridge and Gregory)
• Details: This bridge was rehabilitated to carry full legal truck loads. A noteworthy aspect of this bridge was that it was galvanized. The bridge was dismantled and repaired in a shop setting. Repairs to the bottom chord were made. New elastomeric bearing pads were provided to replace the pin/rocker type bearings. A new wooden deck with asphalt wearing surface and new guiderail was installed on the re-erected bridge.
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State Street Bridge

• Location: Bridgeport, Saginaw County, Michigan
• Type: Two span pin-connected Pratt through truss, each span 124 feet long, built 1906.
• Purpose of Rehabilitation: Restoration and conversion of abandoned vehicular bridge and roadway for pedestrian use in original location.
• Year of Rehabilitation: 2010
• Cost of Rehabilitation: Approx. $2,150,000
• Design Firm: Spicer Group
• Contractor: Davis Construction, Truss Restoration Subcontracted to Bach Steel
• Details: Bridge was slowly tipping over due to failing pier. Piers were replaced during this project. The trusses suffered from severe section loss at bottoms of the vertical members (including the pin plates) and the top chord and end post cover plate also suffered from section loss. After removal of trusses from over the river by crane, the trusses were fully dismantled and restored in a shop setting. The cover plate was completely replaced with a slightly thicker cover plate. The ends of the vertical members and associated pin plates were cut off and replaced with exact replicas, which were welded on to the original vertical members. Hot metal riveting was used on this project. All rivets that were failed or replaced with replaced with rivets.
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Stenton Avenue Bridge

• Location: Montgomery County, Pennsylvania
• Type: Two span stone arch bridge, 168 foot length with 30 and 26 foot spans, built 1914.
• Purpose of Rehabilitation: Continued vehicular use in original location.
• Year of Rehabilitation: 2010
• Cost of Rehabilitation: $1,050,000
• Design Firm: Transystems
• Contractor: J.D. Eckman Company
• Details: Example of a rehab/retrofit type project done on a number of stone arches in Pennsylvania. Part of the project included installation of a load-bearing “moment slab” that bears live loads on the bridge. This slab is not visible following rehab. Original stone parapets were replaced with concrete railing with stone facing. This bridge also had its earthen fill replaced with light weight concrete. Masonry was repointed as needed. Project used falsework under the arches called centering to stabilize the arches during rehab.
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Tobias Bridge

• Location: Jefferson County, Indiana
• Type: 154 foot single span, pin-connected Whipple Through Truss. Built 1885.
• Purpose of Rehabilitation: Continued vehicular use in original location.
• Year of Rehabilitation: 2004
• Cost of Rehabilitation: $900,000 ($1,114,475 in 2014 Adjusted For Inflation)
• Design Firm: J. A. Barker Engineering
• Details: Unusual project because of the bridge’s distinctive lightweight vertical members, which were historically significant, but limited the load capacity of the bridge. Extra plate was added to the outside of the verticals, while retaining the original z-shaped plate design within. The railings are a design that joined the original lattice railing design with a crash-resistant tube railing at the top and bottom and is designed to protect the trusses as well. Weight limit increase was from three to fourteen tons.
• View Detailed Report By SRI Foundation For AASHTO
• View Bridge Documentation (External Link)

Triple Whipple Bridge

• Location: Dearborn and Ohio Counties, Indiana
• Type: One span pin-connected triple intersection Pratt through truss (aka Triple Whipple), 300 foot long, built 1878.
• Purpose of Rehabilitation: Restoration and conversion of abandoned vehicular bridge and roadway for pedestrian use in original location.
• Year of Rehabilitation: 2008
• Cost of Rehabilitation: $1,307,000
• Design Firm: Howard J. Barth & Associates of Greensburg, Indiana
• Contractor: Faulkner Construction of Louisville, Kentucky
• Details: Conversion of this bridge for pedestrian use include repairs to the bridge’s stone abutments and repainting of the truss structure and installation of new railing. Other misc. repairs were made, but the trusses themselves were in good condition and no major repairs were needed. Indiana Landmarks honored the project with a 2009 Rosemary Prentice Award for Historic Preservation.
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Upper Black Eddy-Milford Bridge

• Location: Hunterdon County, New Jersey and Bucks County, Pennsylvania
• Type: Rivet-connected polygonal Warren through truss, three 228 foot spans with total bridge length of 700 feet, built 1933.
• Purpose of Rehabilitation: Continued vehicular use in original location.
• Year of Rehabilitation: 2011
• Cost of Rehabilitation: $10,300,000 (Awarded contract for construction was $8,171,718)
• Design Firm: Erdman Anthony
• Contractor: Road-Con, Inc. of West Chester, PA
• Details: This project included replacement of the bridge deck. A concrete-filled grid deck was chosen for the new deck. The bridge was also blast cleaned and repainted including removal of lead paint. Selected truss and substructure repairs were also made at this time. Historical replica lighting was added to the bridge. New guiderail was installed. The substructure of the bridge is older than the truss superstructure, and dates to the 1840s, from a former covered bridge.
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University Avenue Bridge

• Location: Philadelphia, Pennsylvania
• Type: Steel deck plate girder double-leaf trunnion bascule, 120 foot bascule span and 540 overall bridge length, built 1929
• Purpose of Rehabilitation: Continued vehicular use in original location.
• Year of Rehabilitation: 1999
• Design Firm: Lichtenstein Consulting Engineers (Today Owned By Transystems)
• Contractor: Buckley Construction Company of Philadelphia, Pennsylvania
• Details: Work initially focused on rehabilitation of this bridge’s mechanical systems but was expanded to encompass superstructure rehabilitation and replacement of the deck on the approach spans. The electrical system was completely refurbished. Work included rehabilitation of the rack and pinion system, replacement of center lock motor and gearing, and rehabilitation of the rear lock systems. Repairs to both the motor brakes and the machinery brakes were undertaken.
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Walnut Street Bridge

• Location: Wabasha County, Minnesota
• Type: One span 118 foot pin-connected Pratt through truss (~160 feet with approaches), built 1904
• Purpose of Rehabilitation: Continued pedestrian-only use of former vehicular truss bridge.
• Year of Rehabilitation: 2002
• Cost of Rehabilitation: $455,000 ($593,804 in 2014 Adjusted For Inflation)
• Design Firm: Mead and Hunt
• Contractor: Minnowa Construction of Harmony, Minnesota
• Details: New abutments and longer approach spans were built to address erosion issues. Miscellaneous repairs to the truss structure were made. New deck and railing installed. Some rivets were replaced with bolts. Temporary bracing was used to undertake repairs of the chords.
• View Detailed Report By SRI Foundation For AASHTO
• View Bridge Documentation (External Link)

Washington Avenue Bridge

• Location: Waco: McLennan County, Texas
• Type: One span pin-connected Pennsylvania through truss, 450 foot and total length 567 feet, built 1901.
• Purpose of Rehabilitation: Continued vehicular use in original location.
• Year of Rehabilitation: 2009
• Cost of Rehabilitation: $4,791,712
• Design Firm: None, In-House Design By TXDOT
• Details: Major issues with this project involved the replacement of fractured eyebars. Welded replacements were installed eliminating the need to fully dismantle the pin connections. Less than 5% of original truss materials were replaced in this project. Deck was replaced, and metal on the bridge was cleaned and repainted.
• View Detailed Report By SRI Foundation For AASHTO
• View Bridge Documentation (External Link)

Wells Street Bridge

• Location: Chicago, Illinois
• Type: Double-deck Warren through truss bascule, 268 foot span, 345 feet total length, built 1922.
• Purpose of Rehabilitation: Continued vehicular and railroad use in original location.
• Year of Rehabilitation: 2012-2013
• Cost of Rehabilitation: $42,000,000
• Design Firm: AECOM
• Contractor: Walsh and II in One
• Details: Prior to rehabilitation, this bridge had not been rehabilitated for many decades and the trusses suffered from severe section loss at the bottom chord and nearby areas. This was a large and heavy rehabilitation project that included the replication and replacement of the outer half of each of the two bascule leaf trusses. The replicated sections were prefabricated off-site and floated into position immediately after the original sections were cut off. The replicated sections maintain the original design and appearance of the original sections with the exceptions of floor beam design and use of bolts instead of rivets. The bridge was cleaned and repainted and a new deck installed. Electrical systems were upgraded and converted to modern standards. Most of the original gears remained but a couple were replaced. The bridge tender houses were rehabilitated and repaired. The original railings had been replaced on this bridge long ago. The 2012 rehab fabricated replicas of the original ornamental railings and installed them on the bridge. Because the weight of the bridge was changed during and after the project, the balance of the bascule bridge had to be considered throughout the project.
• View Bridge Documentation (External Link)

Wood Road Bridge

• Location: Steuben County, New York
• Type: One span pin-connected Baltimore through truss with Phoenix columns, 207 foot length, built 1897.
• Purpose of Rehabilitation: Continued vehicular use in original location.
• Year of Rehabilitation: 2004
• Cost of Rehabilitation: $820,000 ($1,000,723 in 2014 Adjusted For Inflation)
• Design Firm: Erdman Anthony
• Contractor: Vector Construction Corp of Cicero, New York
• Details: Prior to rehabilitation, the bridge suffered from displaced expansion bearings, deteriorated lateral bracing, stringers, timber deck, and paint system. A number of material samples were taken from the bridge and tested. Rehabilitation included replacement of deck, deck stringers, and built-up floor beams (with rolled beams). Floor beam hangers were replaced as were three lateral braces. Abutments were capped and repointed. New railing was installed. 12 of the sub-diagonal members were strengthened.
• View Bridge Documentation (External Link)