Surveying Projects

The 1993-1996 biennial inspection program covered inspection and assessment of nearly 1,000 bridge piers and over 8,000 linear feet of relieving platform supporting FDR Drive in Manhattan. In addition to the inspection of the bridges, McLaren was responsible for the fathometric survey of more than 200 piers. The 2001-2002 biennial inspection program covered inspection and assessment of a total of 72 bridges encompassing 629 SSUs. The current (2007-2008) program has covered inspection and assessment of a total of 93 bridges encompassing 309 SSUs. Comprehensive reports are prepared including still photographs, sketches, underwater videotape recordings, and a summary of results of findings. All reports are prepared in metric and all inspection work is performed in accordance with the NYSDOT Bridge Diving Inspection Manual.

At Fort Totten, McLaren is assisting in the development of a new, 14-acre park by providing review and assessment of the current infrastructure systems, demolition plans, grading plans, drainage plans, and utility plans. At the Bronx River Greenway Link, McLaren is providing surveying services for the redesign of the Bronx River Greenway from Birchall Avenue to 180th Street in the Bronx, NY. Services include McLaren review of existing data and topographic, property and utility surveying. For the 233rd Street Pedestrian Crossing, McLaren is providing topographic, utility and property surveying for the design of the Bronx River Greenway Pedestrian Crossing at 233rd street.

McLaren was responsible for supplying underwater inspection services, providing fathometric surveys, and preparing comprehensive reports (including database management, photographs, underwater video documentation, and assessment of data). All inspections conform to the National Bridge Inspection Standards (NBIS) and the ConnDOT’s Bridge Inspection Manual (BIM version 2.1, September 2001).