Rehabilitation and Preventive Maintenance of Six Bridges

Nassau and Suffolk Counties, New York


Project Partners


This project involved inspections and final designs (Phases V-VI) of recommended rehabilitative measures of six bridges in Nassau and Suffolk Counties in New York State. Three of the bridges were concrete rigid frame arch type structures and three bridges were multi-steel stringer concrete deck bridges. While bridge inspections focused on the wearing surface, the bridge deck, bridge deck joints, and other elements of the bridge were visually inspected to identify any extensive deterioration and/or potential hazardous conditions. MP Engineers was responsible for inspecting all six bridges and recommending rehabilitative measures that would address structural deficiencies that contributed to the continuing deterioration, and which would improve the bridges’ condition rating, and ensure their continued serviceability. MP Engineers was responsible for the final designs (Phases V&VI) and the preparation of final contract documents (Plans, Specifications & Estimate) for the recommended rehabilitation of all bridges, which included the removal and replacement of an asphalt wearing surface on approaches to the six bridges, repair of the concrete deck, and the replacement of the existing bridge deck joints with the new armorless joint system on the three steel stringer/concrete deck bridges. Construction staging and Maintenance & Protection of Traffic plans were developed, which enabled the work on all six bridges to be accomplished while maintaining the required number of traffic lanes during peak traffic periods. MP Engineers prepared the following design drawings: Approach roadway design profile and cross-sections Checked drainage design of bridge and approach roadways MPT drawings including detour drawing for one location The design was developed in accordance with all applicable Federal and State standards and procedures, including the current NYSDOT Project Development Manual (PDM), Highway Design Manual (HDM), all applicable NYSDOT Bridge Detail (BD) sheets, and appropriate sections of the Federal Aid Policy Guide (FAPG).