Under the Philadelphia Water Department’s Green Streets Initiative (GSI), NTM provided conceptual and final designs for the Cayuga Street green storm sewer system. The green storm sewer system will convey runoff to a subsurface infiltration system, designed by others, that will be constructed beneath the Ferko Playground in Juniata Park within the City’s northeast […]
The SR 4006 Kiester Bridge project includes replacing an existing two-span steel I-beam bridge with a single-span steel girder bridge. NTM performed stormwater management, erosion and sediment control, and drainage design; hydrology and hydraulics analysis; and NPDES permitting for this project in Slippery Rock Township.
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 […]
PennDOT’s Bureau of Project Delivery has awarded NTM Engineering a contract to provide statewide hydrologic and hydraulic (H&H) services. NTM has extensive experience not only developing H&H reports and permit applications, but also providing H&H services, such as policy and procedure review of design manuals and strike-off letters, QA reviews of H&H reports and waterway […]
NTM Engineering was part of an AKRF team restoring and enhancing Reaches 4 and 5 of the Tacony Creek Park’s ecosystem. As part of its restoration and green initiatives, the Philadelphia Water Department intends to restore the Tacony Creek stream corridor, which extends from Cheltenham Avenue on the upstream extent down to Castor Avenue on […]