News & Insights

  • February 18, 2025
Allentown Transportation Center

Allentown Transportation Center

The Lehigh and Northampton Transportation Authority’s Allentown Transportation Center (LANTA ATC) is an award-winning transit plaza that prioritizes sustainable strategies and public enjoyment for Lehigh Valley commuters. RETTEW provided essential...

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  • February 18, 2025
Hamilton Streetscape

Hamilton Streetscape Revitalization

RETTEW played a pivotal role in this streetscape project in downtown Allentown, contributing notably to the city’s revitalization efforts. As the design engineer, RETTEW focused on enhancing ADA accessibility and...

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  • February 18, 2025
Greenfield North

Greenfield North Phase 2

RETTEW collaborated with High Real Estate Group on this extensive mixed-use project, which included a roadway extension, a 207,000-SF industrial flex/warehouse building, the 87,000-SF Thaddeus Stevens College of Technology Transportation...

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  • February 18, 2025
Gorsuch

Gorsuch Site Phase I and II Environmental Site Assessments

The Southeastern Ohio Port Authority engaged RETTEW to address subsurface contamination at the AMP former Richard H. Gorsuch Generating Station, a brownfield site with a history of coal processing operations...

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  • October 9, 2024
Maple Street Garage

Maple Street Garage

The Maple Street Garage project presented the challenge of replacing two outdated parking facilities with a single modern structure that could support the City of Allentown’s growing parking needs while...

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  • October 9, 2024
Site Remediation

Wasilchak Remediation Planning and Implementation

RETTEW was hired to address subsurface releases from underground gasoline storage tanks at a former Gulf service station. We conducted site characterization to locate the tanks and understand the contaminant...

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  • July 2, 2024
Thaddeus Steven Transportation Center

Thaddeus Stevens Transportation Center

The Thaddeus Stevens College of Technology Transportation Center project posed several challenges for our client. This 86,000-SF institutional and industrial building, located on the Greenfield Industrial Park campus, required a...

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  • June 7, 2024
1010 Hamilton Apartments

1010 Hamilton Apartments

RETTEW provided comprehensive civil engineering services to address a critical need for urban revitalization, helping to transform a stretch of dilapidated commercial storefronts into a vibrant, four-story apartment building. We...

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  • June 7, 2024
Walnut Street Extension

Walnut Street Extension

RETTEW helped revitalize a dormant roadway project, which was started by PennDOT 40 years ago as the Route 23 bypass, but was abandoned because of funding challenges. The neglected corridor...

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  • April 1, 2024
Sussex-Apartments-retaining-wall

Sussex Square Apartments Retaining Wall

This project at the Sussex Square Apartments in Plymouth Township addressed a deteriorating retaining wall that separated an apartment complex parking area and a tributary to Plymouth Creek. The existing...

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