Mercer County Rosedale Road Bridge (#330.5) over Stony Brook

Princeton Township, Mercer County, NJ

CLIENTS:

Mercer County

PROJECT DURATION:

2006 - 2009

CONSTRUCTION COST:

$2.3M

SERVICES:

• Bridge Design
• Civil Design
• Construction Support Services
• Maintenance and Protection of Traffic (MPT)

Project Role and Scope of Work

IH served as the prime consultant for the design and replacement of the Rosedale Road Bridge over Stony Brook. The existing bridge consisted of a stone-faced arch with a 70-foot long single span prestressed concrete structure, with an out to out width of 52 feet.

Structural Engineering / Civil / Highway Engineering

IH was responsible for the civil and bridge design from concept development through construction services. The structural design scope of work included 13 precast, pre-stressed box beams, bearings, abutments, wingwalls, and retaining walls on spread footings. The civil scope included the preliminary and final geometry design of roadway approaches, grading, guiderail, and right of way (ROW); and the preparation of construction plans, Maintenance and Protection of Traffic (MPT), and detour route plans. IH oversaw the permit application for wetland and stormwater discharge impact mitigation, conducted the hydraulic analysis, and supervised the field survey. Consideration was given to Context Sensitive Design for the Princeton Historic District and the new bridge resemblance to the original structure. This project was constructed in just four (4) months and utilized cost-effective and innovative design solutions.

Project Awards

• Honorable Mention for Bridge with Less than $5M Cost 2012 from ASHE Southern and North/Central Sections;
• Historic Preservation Award 2011 from the Historical Society of Princeton;
• Engineering Excellence Award 2010 from the American Council of Engineering Companies;
• Honorable Mention for bridges with spans up to 75’ 2010 from the Prestressed Concrete Institute;
• Grand Award from the American Concrete Institute and the NJ Aggregate and Concrete Association 2009.