Dewberry

According to the U.S. Department of Transportation’s Federal Highway Administration (FHWA), a “scour critical” bridge is defined as a structure whose foundations would be unstable during storm events, based upon either actual scour observations or potential scour depth calculations performed as part of the in-depth evaluations. The bridges that would not be stable at 100-year storms or less require some form of protection to ensure public safety. Dewberry's water resources engineering experts are regularly called upon to perform bridge scour studies and to develop construction plans for the installation of bridge scour countermeasures.


New Jersey Bridge Scour Program Statewide, New Jersey This $1.3-million statewide scour evaluation program includes 35 state-owned bridges over waterways in Burlington, Essex, Hunterdon, Monmouth, Morris, Ocean, Union, Sussex, and Warren Counties, New Jersey. As a result of these evaluations, NJDOT has identified bridges that require further investigation and implementation of bridge scour countermeasures. This project includes the design of scour countermeasures and the development of construction plans for the installation of those countermeasures are also included in this project.

Stability Evaluation and Stabilization of New York City Department of Environmental Protection Culvert on Cross Bay Boulevard Queens, New York Dewberry supervised a scour study on the $58-million Cross Bay Bridge Rehabilitation.


Rehabilitation of Ten Culvert Bridges Staten Island, New York Bridge scour evaluation for ten culvert bridges, including stone arch, double and triple barrel, concrete box, and concrete pipe construction.