The Commonwealth pilot program to fast track “bundled” local bridge replacement projects will fully fund the replacement of seven Luzerne County bridges and three bridge removals. NTM performed design activities in 2013 with construction planned for 2014. Within four months of notice-to-proceed, NTM received TS&L and H&H approval and submitted erosion and sediment and waterway […]
NTM Engineering provided the Post-Construction Stormwater Management (PCSM) Plan, Erosion and Sediment Pollution Control (E&S) Plan, NPDES (stormwater) Permit, and Dam Safety Permit for 1.25 miles of roadway widening (from two to four lanes and from three to six lanes) along SR 0228, Mars-Valencia Road. Design challenges included discharging to waters with 303(d) impairments, soils […]
NTM Engineering provided bridge design services and hydrologic and hydraulic (H&H) analysis for the Salford Station Road (SR 1024) project in Upper Salford Township, Montgomery County, Pennsylvania. The project involved two proposed bridge replacements. The first bridge (SR 1024 Section NRV) is a 40-foot-long, single-span, rolled-steel, I-beam bridge over the Mill Race. This bridge, built in […]
As part of five-year engineering and environmental open-end contract, NTM completed an in-depth inspection, STAAD Load Rating, and final inspection report and updated the Fracture Critical Plan for the SR 0414 Quintangluar Warren Truss over Pine Creek.
The SR 0308 Section 255 West Sunbury Bridge project over Muddy Creek in Clay Township, Butler County, involves replacing an existing structurally deficient single-span bridge with a precast concrete box culvert. NTM, as prime consultant, is performing the structural design, roadway design, H&H analyses, erosion and sedimentation control design, and permitting for the replacement structure. […]
NTM provided structural services for the DRPA. Under an open-end contract, NTM performed bridge construction inspection services on the DRPA’s Walt Whitman and Ben Franklin Bridges as part of retrofit and structural hardening projects (July-September 2009). NTM also assisted with gusset plate ratings on the Walt Whitman Bridge in October 2010 and analyzed 56 gusset […]