About this Project
LKB was retained by Suffolk County Department of Public Works to provide design, construction support services, as well as construction management and inspection services for this bridge rehabilitation project, consisting of a moveable, double leaf bascule bridge with flanking spans. LKB performed the structural inspection and condition evaluations, prepared a design report, preliminary and final contract drawings, as well as construction support services.
Elements for this project included preparing structural and civil design, load ratings, seismic evaluation, scour analysis and mechanical and electrical evaluation. Rehabilitation plans included extensive steel repairs in all three spans, balancing of the bascule spans, rehabilitation of approach roadway and sidewalks, concrete abutments and piers, and timber fender system. Mechanical work consisted of replacing span locks, replacing rivets in the rack, along with other miscellaneous repairs. Electrical work included replacing the main drive motors and rewiring the main power feeds.
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 included 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.
LKB’s services also included detailed inspection during construction, on-site field testing of materials and other construction activities, including field measurement and collection of data, submission of monthly and final estimates and progress reports, and preparation of record plans showing all changes from the contract plans. The construction management/inspection services included overseeing all construction operations and the placement of Work Zone Traffic Control.
The project made extensive steel repairs on all three spans, after which the bascule spans were balanced. Elements for this project included load ratings, seismic evaluation, scour analysis and mechanical and electrical evaluation. Rehabilitation included repairs to structural steel members, reconstruction of the approach roadway and sidewalks, concrete abutments and piers, and the construction of a timber fender system. Electrical work included replacing the main drive motors and rewiring the main power feeds. Mechanical work consisted of replacing the span locks, replacing rivets in the rack and additional miscellaneous work.
Suffolk County Department of Public Works