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The Pennsylvania Department of Transportation (PennDOT) identified the existing three-span Pequea #5 Bridge as structurally deficient, so Lancaster County set out to replace it and concurrently address other important public concerns. Specific project goals included eliminating the piers to reduce maintenance costs, accommodating the Amish community, preserving the rural historic district, to which the bridge…
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The Hermitage Municipal Authority’s organic waste digestion project has many environmental and economic benefits. By processing waste sludge and food wastes through its anaerobic digestion system, the Authority not only produces a beneficial energy source in the form of biogas, but they also prevent the disposal of organic waste at landfills. By diverting wastes from…
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The City of York operates a 26-mgd advanced wastewater treatment plant, providing service to the greater York region. As part of its sludge handling processes, the City employs anaerobic digestion and combusts the accumulated biogas to produce electricity to meet the facility’s needs. To ensure optimal performance of the biogas piping, the City hired RETTEW…
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As the lead design-build firm that is co-developing battery energy storage system (BESS) projects nationwide, RETTEW implemented this technology at the Atlantic County Utilities Authority (ACUA) Wastewater Treatment Plant. The 1 MW/1 MWhr BESS furthers ACUA’s efforts to implement progressive energy technology at the plant. The BESS supports overall grid operations, reduces greenhouse gas emissions,…
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Our client, planning to sell their property, received a compliance notice from the Ohio Department of Natural Resources (ODNR) requiring remedial actions. Historically, the site was contaminated by chloride, petroleum hydrocarbons, and technologically enhanced naturally occurring radioactive material (TENORM). Impacted soils, building materials, and equipment required demolition and excavation to restore the site for regulatory…
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The existing two-span, 37-foot-long North Locust Street Bridge over Santo Domingo Creek carried 2,400 vehicles per day through Lititz Borough but was structurally deficient due to scour and poor pier condition. Looking for one less structurally deficient bridge in their community, the Borough received federal monies to replace the concrete slab bridge. The Borough wanted…
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Verizon Wireless proposed a new 100 by 100-foot telecommunication compound, with a 20-foot-wide access/utility easement including a 12-foot-wide gravel access drive and underground utilities. The client needed to confirm if wetlands and stream resources were present within the proposed cell tower site. Verizon hired RETTEW to perform a wetland delineation investigation identifying the boundaries of…
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College Avenue in Elizabethtown Borough was in need of more efficient transportation infrastructure to decrease traffic congestion and hazards as well as improve traffic flow. To accomplish this goal, RETTEW split the project into two phases. The first phase relocated an existing borough street to avoid placing heavy traffic in local neighborhoods with small intersections,…
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West Donegal Township closed Newville Road Bridge in the 1990s because of excessive corrosion in its asphalt-filled metal deck pans. After receiving federal funding administered through the Pennsylvania Department of Transportation (PennDOT) for the project, the Township selected RETTEW to develop a new bridge and approach roadway that met both PennDOT and Amtrak design criteria….
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Closed to traffic for more than three years following an inspection that deemed it unsafe, residents and community members of German Township had to avoid the Harrison County Road 51 Bridge and travel miles out of their way to get to their homes, schools, and businesses. The detour not only delayed emergency responders to the…
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Go to NewsroomPenn State Baseball Player Named RETTEW 2023-24 Endowed Scholarship Winner
RETTEW is proud to announce the recipient of the 2023-24 RETTEW Endowed Scholarship for Intercollegiate Athletics at Penn…
Read MoreChesapeake Bay – EPA Settlement Agreement Effects on Pennsylvania’s NPDES Permittees
When the Chesapeake Bay Watershed Agreement was developed, it established goals and outcomes for restoring the Chesapeake Bay, its tributaries,…
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