Route 36 Highlands Bridge Replacement

The new precast concrete segmental bridge is replacing a functional obsolete and structurally deficient 75 year old double leaf bascule bridge. This is the main corridor to many of NJ's eastern beaches and the national park Sandy Hook. The new bridge provides a 65 ft vertical clearance for the maritime traffic on the Shrewsbury River.

The matchcast superstructure segments ranged in depth from 11 feet at the piers to 7 feet at the center of the spans and were erected using the balanced cantilever construction method. Matchcast pier segments were stacked on the cast-in-place foundation and post-tensioned to the previously erected piece.

Since the contractor, J.H. Reid, planned to erect the project using a barge mounted ringer crane, all segments were trucked to a Hudson River port in Coeymans, N.Y., offloaded to a barge and shipped to the site.

Unistress Corporation of Pittsfield, Massachusetts, produced the 384 precast concrete segments (superstructure), as well as 100 precast concrete pier segments (substructure). The precast production for the piers began in September of 2008, and was followed by the superstructure production in October 2008. Production of eastbound and westbound segments was completed in August of 2010 and delivery and erection was completed in October, 2010.


Project Details


Monmouth County






New Jersey Department of Transportation


Unistress Corp. Pittsfield, MA


Jacobs Engineering Iselin, NJ
Hardesty and Hanover, New York, NY
McNary/Bergeron, Old Saybrook, CT

General Contractor:

J.H. Reid, South Plainfield, NJ

Total Length:

Approximately 1,611' long, 46' wide

Structural Precast Elements:

• 384 Segmental Concrete Units (Superstructure)
• 100 Pier Concrete Units (Substructure))


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