Bridges For more information, contact bridges@wai.com. Filter Projects By Bridge Type View All Bridges Types View Long Span Bridge Design View Long Span Bridge Construction View Highway and Pedestrian Bridges View Bridge Inspections and Studies 2013   Brooklyn Bridge - Approaches and Ramps Rehabilitation Brooklyn, New York NYC Department of Transportation URS Corporation Design for redecking 7 steel approach structures, ramp structures, and approach roadway on brick arches. Rehabilitation of substructure. In-depth inspection of bridge and towers. 2012   San Francisco-Oakland Bay Bridge - Suspension Bridge Design San Francisco, California California Department of Transportation (CALTRANS) TY Lin/Moffatt & Nichol (JV); MacDonald Architects Design of world’s longest single-tower, self-anchored suspension bridge; first in US. Largest earthquake load imposed on a bridge.      Shore Parkway over Fresh Creek Basin Brooklyn, New York NYC Department of Transportation WAI Prime Resident engineering inspection services for reconstruction of two highway bridges, including demolition, approach widening and maintenance of traffic.      Two Pedestrian Bridges New York and Queens, New York NYC Department of Design and Construction WAI Prime; H2L2 Architects Design and construction support services for reconstruction of two pedestrian bridges to increase capacity and ADA compliance and improve safety and aesthetics. 2011   Brooklyn Queens Expressway – Environmental Impact Statement Brooklyn, New York NY State Department of Transportation Henningson Durham & Richardson (HDR) DR/EIS project scoping report for rehabilitation of 1.5-mile portion of expressway, including 3-level cantilevered structure. Design review; Environmental Impact Statement. 2009   Bronx-Whitestone Bridge - Deck Widening and Cable Replacement Study Bronx, New York MTA NYC Transit Authority/TBTA Parsons Brinckerhoff Quade & Douglas/WAI (JV) Conceptual designs for deck widening and cable replacement with analysis of their effects on bridge components, traffic flow, cost, and aesthetics.      Manhattan Bridge - Lower Roadway Rehabilitation Design and Construction Support Services New York, New York NYC Department of Transportation WAI Prime Design and construction support for replacement of lower roadway, including framing, deck, substructure, anchorages, towers, lighting, fire standpipe, and traveler.      Pitt River Bridge Vibrations Study Vancouver, British Columbia, Canada British Columbia Ministry of Transportaiton West Wind Laboratory Preliminary study of wind-induced vibrations of bridge stay cables; recommendations for mitigation with mechanical dampers..      Tappan Zee Bridge Repairs – Construction Inspection and Supervision (TANY 05-31B) Tarrytown, New York NY State Thruway Authority WAI Prime Engineering, inspection, and construction support for deck replacement. Traffic maintenance/protection, electrical system improvements, lighting. Shop drawing review and approval.      Verrazano-Narrows Bridge - Rehabilitation of Lower Level and the Lily Pond Avenue Bridge Staten Island, New York MTA Bridges & Tunnels/TBTA WAI Prime Rehabilitation of lower-level approaches and Lily Pond Avenue overpass west of bridge toll plaza in Staten Island. Seismic evaluation and retrofit. 2008   Aerial Tramway - Tower and Anchorage Design Philadelphia, Pennsylvania Delaware River Port Authority WAI Prime Design of innovative aerial tramway connecting Philadelphia and Camden.      Henry Hudson Parkway Northbound Service Road Guide Rails Bronx, New York NYC Department of Design and Construction WAI Prime Design for removal of existing fencing and guide rails and installation of new timber guide rails within specified area limits. Subsurface investigation; utilities.      Metrorrey Light Rail Viaduct - Line 2 Monterrey, Mexico Sistema de Transporte Colectivo Metrorrey WAI Prime; Grupo GP Construction Design-build for 4-mile-long elevated precast-concrete segmental viaduct, including design of platform structures for six elevated stations, for extension of light rail system.      Roslyn Viaduct Bridge Replacement North Hempstead, New York NYS Department of Transportation WAI Prime Construction engineering for new precast segmental viaduct to replace existing bridge. Design of erection equipment and sequences, erection manual, geometry control.      Triborough Bridge - Dehumidification and Reanchoring of Cable Strands New York, New York Triborough Bridge & Tunnel Authority WAI Prime Design of dehumidification system, re-anchoring of strands, condition survey for additional strands, anchorage rehabilitation, concrete and steel repairs. 2007   Bronx-Whitestone Bridge - Deck Replacement Design and Aerodynamic Study Bronx, New York MTA Bridges & Tunnels/TBTA WAI Prime Design of lighter steel orthotropic replacement deck essential to stiffening system. Coordination with design of wind fairings for aerodynamic enhancement.      Cooper River Bridges Demolition Charleston, South Carolina South Carolina Department of Transportation WAI Prime; Jay Cashman/Testa Corp (JV) Demolition of four river crossings and approaches. Design of improved interchange, new pedestrian/bicycle bridge, and streets. Contaminated materials, wetlands protection.      Moses Wheeler Bridge Stratford, Connecticut Connecticut Department of Transportation STV Incorporated Technical consultant for concept development and final design of 3,000-foot-long precast segmental concrete box-girder bridge carrying 6 lanes of I-95 over the Housatonic River.      Queensboro Bridge - Construction Support Services (Contract #6) New York, New York NYC Department of Transportation WAI Prime Construction support services during rehabilitation of miscellaneous bridge components.      Route 52 Causeway - Contract A PreBid Ocean City, New Jersey George Harms Construction Company/PKF WAI Prime Pre-bid assistance to contractor for $350 million replacement of bridge and causeway. Preliminary gantry designs, alternative erection schemes, revised segment configurations.      St. George Ferry Terminal - Ramps Staten Island, New York NYC Department of Transportation WAI Prime In-depth inspection of 8 ramps and recommendations for rehabilitation. Survey, subsurface investigation, environmental testing, document review.      Triborough Bridge - Reconstruction Inspection New York, New York Triborough Bridge & Tunnel Authority The LiRo Group Construction inspection services for reconstruction of bridge approaches, including redecking of plate girder superstructure and repair of substructure.      Williamstown Bridge Williamstown, Massachusetts Massachusetts Highway Department WAI Prime Inspection of existing bridge and design of single-span post-tensioned replacement with new 15-meter deck and improved abutments, roadway, and signals. 2006   Becket Bridge Becket, Massachusetts Massachusetts Highway Department WAI Prime Design of bridge carrying Route 8 over Yokum Pond Brook to accommodate traffic requirements and high-water elevation; replacement for deteriorated structure with 45-degree skew.      Biennial and Interim Bridge Inspection - 2005-2006 New York County, New York NY State Department of Transportation WAI Prime Biennial and interim inspection of 201 short- and medium-span highway bridges (2,743 spans) in New York County.      Congress Street Bridge Brooklyn, New York NYC Department of Transportation WAI Prime Resident engineering and inspection services for bridge rehabilitation, including confirmation of quality of all structural elements and traffic maintenance.      FDR Drive Southbound - East 49th Street to East 42nd Street New York, New York NYC Department of Transportation WAI Prime Rehabilitation design for 2,100 linear feet of cantilevered highway with uncommon deterioration. Multiple surveys and geotechnical reports, resident engineering.      Lincoln Road Bridge Brooklyn, New York NYC Department of Transportation WAI Prime Resident engineering and inspection services for bridge rehabilitation, including confirmation of quality of all steel, concrete elements, and traffic maintenance.      Richmond-San Rafael Bridge Seismic Retrofit San Francisco, California California Department of Transportation (CALTRANS) Tutor-Saliba/Koch-Skanska (JV) Cost-effective design of temporary structures to stabilize existing piers during major seismic retrofit of 4.5-mile bridge over San Francisco Bay.      Rikers Island Bridge East Elmhurst, New York NYC Department of Transportation WAI Prime Structural design for replacement of deck and superstructure of 3/4-mile viaduct with 56 spans.      Sakonnet River Bridge Review Newport, Rhode Island Rhode Island Department of Transportation Commonwealth Engineers and Consultants Constructability and peer reviews of design for 1,950-foot precast-concrete segmental portion of new bridge between Portsmouth and Tiverton.      Staten Island Ferry Transfer Bridges Inspection Manhattan and Staten Island, New York NYC Department of Transportation WAI Prime Biennial inspection of movable transfer bridges for 8 slips following NY State DOT format. Document review.      Steinway Street Bridge Emergency Damage Assessment Queens, New York NYC Department of Transportation WAI Prime; WAI Prime Forensic investigation and condition inspection of collapsed bridge structure over Grand Central Parkway. Shop drawing review of temporary bridge. 2005   Brooklyn Bridge - Pedestrian Vibrations Study Brooklyn, New York NYC Department of Transportation WAI Prime Analysis of pedestrian-induced vibrations (synchronization) caused by unprecedented exodus from Manhattan during largest blackout in US history. Monitoring, testing, mitigation.      Forth Bridge Cable Investigation Edinburgh, Scotland, United Kingdom FaberMaunsell Ltd of Maunsell House WAI Prime First-ever internal inspection of cables on 40-year-old suspension bridge.      Iowa DOT I-74 Bridges - Cable Inspection Bettendorf, Iowa Iowa Department of Transportation WAI Prime; Jacobs Engineering Group In-depth inspection of cable system on twin suspension bridges over the Mississippi. Unwrapping and rewrapping of main cables wedged open for condition inspection.      Mill Basin Bridge over Belt Parkway Brooklyn, New York NYC Department of Transportation WAI Prime Design-build services for redecking of double-leaf trunnion bascule bridge supporting 6-lane parkway over Mill Basin with sidewalk on each side.      Queensboro Bridge - 2004 General Bridge Inspection New York and Queens, New York NY State Department of Transportation HNTB Engineering and Architecture/WAI (JV) General inspection of East River steel truss bridge connecting the boroughs of Queens and Manhattan.      Red River Bridge Inspection Boyce, Louisiana Louisiana Department of Transporation WAI Prime Inspection and special nondestructive testing of concrete segmental main spans of cast-in-place box-girder bridge carrying Route LA 8 over the Red River.      Staten Island Bridges Staten Island, New York NYC Department of Transportation WAI Prime Design of repairs for cracking in high-stress regions of 3 bridges carrying local roads over abandoned Staten Island Railroad.      Tampa-Hillsborough Expressway Tampa, Florida Tampa Hillsborough County Expressway Authority DMJM + Harris Construction engineering for 12,000-foot-long viaduct made of precast segmental concrete box girders. Geometry control and erection manuals, casting software.      Tappan Zee Bridge - Bulkheading, Sheet Piling and Shoreline Stabilization Tarrytown, New York NY State Thruway Authority WAI Prime Resident engineering for bridge improvements, including sheetpile and rock anchor installation and dock construction along Nyack shoreline adjacent to abutment.      Tappan Zee Bridge - Construction Support Tarrytown, New York NY State Thruway Authority WAI Prime Construction review and approval for structural steel repairs to west deck truss spans and steel towers. Replacement of caisson dewatering system.      Victory Bridge Perth Amboy, New Jersey New Jersey Department of Transportation WAI Prime; George Harms Construction Company Construction engineering services for twin 3,971-foot-long precast-concrete segmental bridges. Erection manual, erection sequencing, gantry load tests, equipment design drawings.      Williamsburg Bridge - Tower Column Reinforcement Peer Review Brooklyn and New York, New York NYC Department of Transportation WAI Prime Technical peer review for main tower column strengthening; drawings, of proposed method, alternatives, erection, access, shielding, constructability.      Williamsburg Bridge Deck Joints New York, New York NYC Department of Transportation WAI Prime Investigation of expansion joints on bridge bikeway that caused problems for cyclists and pedestrians. Design of steel plates to cover joints. Results praised by community board. 2004   Biennial and Interim Bridge Inspection - 2003-2004 New York County, New York NY State Department of Transportation WAI Prime Biennial and Interim inspections of 199 highway bridges (2,736 spans) in New York County (Manhattan).      Bronx-Whitestone Bridge - Wind Fairings Bronx, New York MTA Bridges & Tunnels/TBTA WAI Prime Major reconstruction of 2,300-foot main span to improve aerodynamic stability and reduce excessive dead load strain on cable. Largest civil application of composites to date.      Brooklyn Queens Expressway - Highway and Bridge Design Queens, New York NY State Department of Transportation Vollmer Associates Reconstruction and rehabilitation of 4 bridges over expressway in northwestern Queens County. Seismic analysis.      I-93 Charles River Bridge Demolition Boston, Massachusetts Massachusetts Highway Department WAI Prime Step-by-step analysis and planning for environmentally safe controlled demolition of double-deck, through truss bridge next to new bridge. Coordination with owner and contractors.      Manhattan Bridge - Bikeway New York, New York NYC Department of Transportation WAI Prime Design of access ramps and dedicated bicycle path across Manhattan Bridge. New railing, fences, drainage, lighting, traffic control devices, signage.      Manhattan Bridge - East Side Rehabilitation Design and Seismic Retrofit New York, New York NYC Department of Transportation WAI Prime Final phase of East Side main-span rehabilitation, including torsional stiffening of suspended spans, reconstruction of approach roadway framing, replacement of lower roadway.      Manhattan Bridge - North Span Rehabilitation Design and Construction Support New York, New York NYC Department of Transportation WAI Prime Design and construction support for completion of north span rehabilitation. Replacement of subway framing, stringers, upper roadway deck; stiffening of main span; bikeway.      NCHRP Parallel-Wire Bridge Cable Guidelines Washington, DC National Academy of Sciences WAI Prime Comprehensive guidelines for inspection and evaluation of the condition, strength, and safety of suspension bridge cables. Published with comprehensive report .      Route LA 319 Drawbridge / Louisa Bridge Port of West St. Mary, Louisiana Louisiana Department of Transportation HNTB Investigation of failure of temporary supports of bascule leaf during erection. Evaluation of damage to bascule girder, counterweight box, tension supports. Repair recommendations.      Shark River Bridge Belmar, New Jersey NJ Department of Transportation WAI Prime; AMEC Construction Design of deep-braced cofferdams for construction of 3 piers that support a high-level crossing of Route NJ 35; addressed surge tides and 8-knot currents.      SR 9A / I-95 / I-295 Interchange Jacksonville, Florida Florida Department of Transportation WAI Prime Construction engineering services for urban interchange consisting of 3 precast segmental concrete box-girder bridges. Equipment design, erection manual, on-call services.      Waldo-Hancock Bridge Cable Evaluation Bucksport, Maine Maine Department of Transportation WAI Prime Cable investigation of Maine's first suspension bridge to determine whether bridge needed to be replaced.      Williamsburg Bridge and Brooklyn Bridge - Peer Review of Seismic Evaluation New York, New York NYC Department of Transportation WAI Prime Peer review of proposed seismic retrofit schemes with recommendations for alternate schemes based on latest NYCDOT seismic design criteria guidelines for critical bridges. 2003   Benjamin Franklin Bridge - Cable Strengthening Alternatives Philadelphia, Pennsylvania Delaware River Port Authority WAI Prime Multi-disciplinary feasibility study and conceptual design of cable-strengthening alternatives; effects on other bridge components, traffic flow, cost, and aesthetics.      Fairhaven Bridge (F-01-014-3T7) Fairhaven, Massachusetts Massachusetts Highway Department WAI Prime Forensic investigation of prestressed-concrete box-beam deck bridge to determine causes of deflection and negative camber in various beams. Field and laboratory testing.      LIE and Clearview Expressway Interchange - Replacement Design of Six Bridges Queens, New York NY State Department of Transportation, Region 11 WAI Prime Inspection and rehabilitation design for 6 single- and multi-span bridges at major expressway interchange. Construction support, hazardous materials management.      Logan International Airport - New International Gateway Terminal E Boston, Massachusetts Massport Skidmore Owings & Merrill Structural, seismic, and blast analysis and design for terminal addition with deep foundations. Design of third-level roadway and connecting vehicle exit ramp.      Manhattan Bridge - North Span Interim Repairs and Construction Support New York, New York NYC Department of Transportation WAI Prime Construction support, design services, and special instructions for rehabilitation of north spans of Manhattan Bridge, including emergency repairs.      Marcy Pedestrian Bridge - Forensic Investigation Marcy, New York NYS Department of Transportation WAI Prime Forensic investigation of pedestrian bridge that collapsed during construction. Field research, design and code compliance review, sample testing, structural analysis, report.      Matthews Bridge - PD&E Study Jacksonville, Florida Florida Department of Transportation Reynolds Smith & Hills Assessment of remaining life of bridge and cost of rehabilitation to increase design capacity. Conceptual design for replacing with suspension bridge or supplementary span.      Tappan Zee Bridge - Partial Deck Replacement Tarrytown, New York NY State Thruway Authority WAI Prime Resident engineering services for partial deck replacement at west approach truss spans. Miscellaneous repairs.      TBTA Cable Wire Research New York, New York Triborough Bridge & Tunnel Authority WAI Prime Study to test and evaluate galvanized wires subject to corrosion within the cable systems of 4 suspension bridges. Predictive model; protection recommendations.      Walt Whitman Bridge - Cable Investigation and Rehabilitation Philadelphia, Pennsylvania Delaware River Port Authority WAI Prime Cable wedging to evaluate number of degraded wires and analysis to determine cable strength. Humidity assessment, implementation of improvements. 2002   Acoustic Monitoring of Bridge Cables New York, New York Departments of Transportation WAI Prime Determination of rate and location of cable-wire failures with acoustic monitoring to improve inspection site selection.      Biennial and Interim Bridge Inspection - 2001-2002 Kings and Richmond Counties, New York NY State Department of Transportation WAI Prime Biennial and interim inspection of 393 highway bridges (1,723 spans) in Kings and Richmond Counties.      Bridgewater, South Hadley, Belchertown Bridges Multiple Cities, Massachusetts Massachusetts Highway Department WAI Prime Condition assessment of 3 bridges with 124-foot spans constructed in 1931. Bridge rating, repair detail options. Cast-in-place concrete T-beams.      Chesterfield Bridge Chesterfield, Massachusetts Massachusetts Highway Department WAI Prime Inspection and rating evaluation of reinforced-concrete bridge carrying 2 lanes of traffic over Jackson Brook.      Holden Bridge Holden, Massachusetts Massachusetts Highway Department WAI Prime Inspection and rating evaluation of 3-span concrete bridge carrying 2 lanes of traffic over Quinapoxet River.      Logan International Airport - Elevated Walkways Boston, Massachusetts Massport Cambridge Seven Associates Phased construction of aluminum-clad elevated pedestrian walkways and circulation nodes. Selective demolition and reconstruction of terminal structures.      Lunenburg Bridge Lunenburg, Massachusetts Massachusetts Highway Department WAI Prime Inspection and rating evaluation of reinforced-concrete bridge carrying 2 lanes of traffic over Pearl Hill Brook.      Somerset/Swansea Bridge Sometset/Swanwea, Massachusetts Massachusetts Highway Department WAI Prime Inspection and rating evaluation of bridge carrying 2 lanes of Route 103 over Lees River.      Stockbridge Bridge Stockbridge, Massachusetts Massachusetts Highway Department WAI Prime Inspection and rating analysis of 1850 stone masonry arch bridge over Marsh Brook. 2001   Attleboro Bridge Attleboro, Massachusetts Massachusetts Highway Department WAI Prime Inspection and rating evaluation of 1850 bridge carrying 2 lanes of Route 152 over Ten Mile River.      Biennial and Interim Bridge Inspection - 1999-2000 New York County, New York NY State Department of Transportation Baker Engineering Inc Biennial and interim inspection of 210 short- and medium-span highway bridges (2,810 spans) in New York County.      Brooklyn Bridge - 2000-2001 Biennial Inspection New York, New York NY State Department of Transportation WAI Prime Biennial inspection of East River suspension bridge between Manhattan and Brooklyn abutments during major rehabilitation of north and south roadways      Casciano Memorial Bridge Newark, New Jersey New Jersey Turnpike Authority WAI Prime Removal of 2 suspenders for testing and replacement with new ones, to determine suspension system viability of tied-arch bridge, including testing and report.      Dennis Bridge Dennis, Massachusetts Massachusetts Highway Department WAI Prime Emergency repair to 7-span, 2-structure bridge with damaged piles that did not compromise capacity. Inspection and load rating.      FDR Drive Ramps - Interim Repairs New York, New York NY State Department of Transportation, Region 11 WAI Prime Design of replacement for deteriorated wood shoring installed to support long-term temporary prestressed-concrete ramps between 26th and 38th Streets.      Newark Liberty International Airport - Helical Ramps for Lot E Parking Structure Newark, New Jersey Port Authority of New York & New Jersey WAI Prime Design of helical ramps and spurs for new 800-car parking structure at Newark Liberty International Airport.      Newark Liberty International Airport - Parking Lot E (P4) Bridge Newark, New Jersey Port Authority of New York & New Jersey WAI Prime Design of new precast concrete beam bridge near Terminal C (under On Call civil and structural engineering contract). 2000   Brooklyn Bridge - Deck Replacement New York, New York NYC Department of Transportation WAI Prime; Yonkers Contracting Company Emergency redecking of suspended spans, rehabilitation of 200 floor beams. Design, traffic maintenance, resident engineering, construction management. Fast track, design-build.      Denver Millennium Footbridge Peer Review Denver, Colorado City and County of Denver Ove Arup & Partners Peer review of new cable-supported steel-and-concrete pedestrian bridge with heavy complicated structure, featuring a tapered, inclined 200-foot tubular steel mast.      Phillipston, Taunton and Holyoke Bridges Multiple Cities Massachusetts Highway Department WAI Prime Inspection, rating, and repair of 3 bridges.      Rockefeller University - Campus Community Bridge and Peggy Rockefeller Plaza New York, New York Rockefeller University WAI Prime (Wendy Evans Joseph Architect) First cable-stayed pedestrian bridge in New York City, connecting dormitories to main campus and spanning busy 63rd Street entrance to FDR Drive. Landscaped plaza.      Tappan Zee Bridge - Pier Protection System Replacement Tarrytown, New York NY State Thruway Authority WAI Prime Design, resident engineering, construction inspection services for protection system replacement; pile-supported platforms at main towers, new permanent bulkhead at shoreline.      Throgs Neck Bridge - Approach Deck Superstructure Rehabilitation Design New York, New York MTA Bridges & Tunnels/TBTA WAI Prime Remediation design for connections of retrofitted orthotropic deck to original steel approach structures that were cracking and had failed.      Van Wyck Expressway - Rehabilitation of Railroad Bridges Queens, New York NY State Department of Transportation WAI Prime Inspection and preliminary design for maintenance repairs on 4 railway bridges spanning expressway. 1999   Brooklyn Bridge - Franklin Square Bridge Retrofit New York, New York NYC Department of Transportation URS Grenier Woodward Clyde Aesthetic retrofit of Roebling structure with structural steel arches to support overloaded original trusses without altering them. Seismic analysis and rating.      Manhattan Bridge - West Side Approaches and Suspended Spans Rehabilitation Design New York, New York NYC Department of Transportation Edwards and Kelcey Rehabilitation of west side approaches and suspended spans, one of several large contracts for bridge carrying 7 vehicular lanes and 4 rapid transit tracks.
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