1. Mon/Fayette Expressway Expansion Phase I Environmental Site Assessment

    The Mon/Fayette Expressway system is a 25-year regional transportation improvement project aimed at providing continuous travel from I-68 in West Virginia north to I-376 in Monroeville, Pennsylvania. The final leg of the project, PA Route 51 to I-376, is a 14-mile extension of the 74-mile system that affords direct access to the eastern suburbs of…

  2. Lehigh Valley International Airport FedEx Ground Distribution Center & Roadway Improvements

    LNAA, on behalf of FAA, retained RETTEW to complete the Section 106 process, beginning with a windshield survey to identify all buildings older than 50 years in the area of potential effects. Following concurrence from the Pennsylvania State Historic Preservation Office (PA SHPO), RETTEW evaluated 36 potential historic resources to determine their eligibility for listing…

  3. Harrison County Road 51 Bridge Replacement

    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…

  4. Engleside Intersection Improvements

    Engleside intersection was an unsafe, complex five-legged signalized intersection in Lancaster County. There were 13 serious accidents at this intersection within a three-year timeframe. The Township needed to improve the safety of the intersection while maintaining full access to the major water and sewer facilities that were adjacent to the intersection. RETTEW assisted the Township…

  5. Hawk Falls Bridge Rehabilitation

    Built in 1955, Hawk Falls Bridge (NB-610) is one of only four deck truss structures on the Pennsylvania Turnpike similar to Minnesota’s I-35W bridge, which collapsed. The bridge spans 738 feet and rises 200 feet over Mud Run in Penn Forest and Kidder Townships. The bridge’s leaking deck joints were removed but had already caused…

  6. I-76 Bridge Rehabilitations

    Interstate 76 (I-76), or the Schuylkill Expressway, is one of the busiest roads in the state. With the approximately 120,000 daily drivers traveling around Philadelphia and Montgomery County on this major highway, safety is paramount. Pennsylvania Department of Transportation’s Engineering District 6-0 wanted to evaluate all the bridges in the county along this corridor. That’s…

  7. Keller’s Covered Bridge Relocation

    Built in 1873 and listed on the National Register of Historic Places in 1980, Keller’s Covered Bridge stood on Rettew Mill Road in Ephrata Township for nearly 140 years. When it came time to replace the bridge with a structure that better met modern-day transportation needs, County and Township officials needed to preserve historic Keller’s…

  8. Lancaster Amtrak Station Site Improvements

    Amtrak and the Commonwealth of Pennsylvania invested millions of dollars to make improvements to the Lancaster train station including convenience, speed, and safety for commuters traveling between Harrisburg and Philadelphia. The improvements needed to meet Amtrak standards. RETTEW provided all site engineering design services to obtain local authority and agency approvals for this project. RETTEW’s…

  9. Marshalls Creek Traffic Relief Study

    Marshalls Creek, a rural village located in the heart of the Pocono Mountains, faced increased growth pressures as it rapidly grew in popularity as both a resort area and an attractive bedroom community for New York City. As a result, the Pennsylvania Department of Transportation needed to find a solution to very serious traffic congestion…

  10. Ott Street Bridge Repairs

    Located in the City of Allentown, the Ott Street Bridge over Cedar Creek was in need of repair. With the existing non-composite adjacent box-beam bridge’s fascia beams severely deteriorated and sidewalks forcing the City to close the shoulders. City officials desired a new superstructure that included an architectural treatment and restored safety for both vehicular…

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Corporate News, Employee Update

RETTEW’s Lonnie Young Accepts Position as ACEC/PA Central Chapter Vice President

RETTEW is pleased to announce Lonnie Young, Vice President of RETTEW’s Transportation and Natural Sciences groups, has accepted…

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Corporate News, Project Update, Services

RETTEW Joins with SolMare, LLC to Construct One of the Nation’s Largest Floating Solar Arrays

RETTEW is pleased to announce the execution of contracts with SolMare, LLC for the construction of one of…

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