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Rising Tide

by Richard A. Masters, P.E., Dir. of Engrg.; Normandeau Assocs., Bedford, NH,
Curtis W. Helm, Proj. Mgr.; Amy S. Green Envir. Consultants, Flemington, NJ,
Anne Magliaro, Envir. Sci.; Amy S. Green Envir. Consultants, Flemington, NJ,
Bruce Colvin, Bechtel Infrastructure Corp., Moorestown, NJ,
Lee E. Carbonneau, Sr. Sci.; Normandeau Assocs., Bedford, NH,
Jeffrey S. Simmons, Sr. Sci.; Normandeau Assocs., Bedford, NH,


Serial Information: Civil Engineering—ASCE, 2002, Vol. 72, Issue 2, Pg. 44-49


Document Type: Feature article

Abstract:

In an effort to accommodate a new light-rail system in New Jersey between Camden and Trenton, the state's Department of Transportation began the formidable task of enhancing a 55 km corridor along the Delaware River and its tributaries last year. Under a design/build/operate/maintain (DBOM) contract, the $600-million project will replace and rehabilitate rail; install new track, crossovers, and switches; construct more than 20 stations and facilities; and replace several roadways and bridges. Careful planning has limited the project's effect on the surrounding estuaries, permanently and temporarily disturbing less than 1.2 ha and 0.13 ha of wetlands, respectively. To compensate for this development, New Jersey Transit was required to create or replenish a total of 3.4 ha of wetlands elsewhere in the Delaware basin. While DBOM contracts are gaining ground in such areas as light-rail construction, this is one of the first DBOM mitigation projects of its kind. The DBOM process was crucial to the project. Its structure not only merged the perspectives of contractor, engineer, and scientist; of greatest importance, it ensured a common fund of knowledge that could be brought to bear in the future monitoring of these continuously evolving projects.

Subject Headings: Project management | Contracts and subcontracts | Wetlands (fresh water) | Railroad stations | Railroad bridges | Light rail transit | Highway and road design

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