LKB was retained by Nassau County Department of Public Works to provide design and construction support services for the rehabilitation of a double leaf bascule bridge and approaches. This ongoing project is federally funded, utilizing NYSDOT local aid procedures. Work completed includes the bridge inspection and evaluation, the preparation of a Design Report, Environmental Permitting, and preparation of final bridge rehabilitation contract plans, specifications, and Engineer’s Construction Cost Estimate.
Structural work elements include rehabilitation and upgrading of the steel and concrete approach spans and steel bascule spans, widening the concrete and steel grate sidewalks, as well as replacing railing and deck joints. Work below the bridge includes adding cover plates to the concrete encased steel girders, bearing retrofit, track girder replacement, replacing the timber fender system, repairing the stonework of the piers and abutments, and bridge painting. Improvements will also be made to the adjacent pocket park, including new sidewalks, benches, railings, and plantings. Electrical work elements include lighting upgrades to various bridge and fender elements and a change from a manual to a fully automated bridge lift control system. Mechanical work elements include the replacement of the tread plates, tail locks, and drive and braking systems.
Upon acceptance of the contract documents, LKB provided services during the bidding phase, which included responding to inquiries from prospective bidders; review of contractors’ qualifications and references; preparation of a bid summary; and recommendation of the award to the lowest responsible and qualified bidder. LKB’s construction support services during the construction phase will include review and approval of detailed shop drawings, catalog cuts, and miscellaneous submittals for compliance with contract documents; review and responses to RFI’s (Request for Information) and Change Order Requests; and attendance of progress and project meetings, as necessary.
Nassau County Department of Public Works