Bridge Inspections and Studies WEIDLINGER ASSOCIATES INC


Bridges : Bridge Inspections and Studies For more information, contact bridges@wai.com.


2009	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.

2007	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.

2006	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.

	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.

	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.

	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.

	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.

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).

	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.

	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.

	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.

	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.

	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.

2000	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.