1. Nissley Drive Bridge Replacement

    RETTEW performed the design of this $3.1 million overhead bridge project carrying Nissley Drive (renamed Baker Avenue as part of the project) over the turnpike mainline. We completed an alternative analysis to replace this rigid-frame structure with a two-span bridge and accommodate future widening of the mainline. In addition to the structure design, RETTEW developed…

  2. Rhode Island Row Solar Array

    A team of solar developers was looking to install rooftop and carport solar arrays on two mixed-use commercial buildings in downtown Washington, D.C. to benefit lower-income residents in the D.C. area. RETTEW was the ideal candidate to make this goal a reality because of our vast experience in designing solar arrays, as well as general…

  3. Mill Road and Horseshoe Trail Road Bridges Rehabilitation

    Two small bridges in West Cocalico Township, one over Little Cocalico Creek and one over a tributary to Cocalico Creek, were deteriorating and needed repairs. Horseshoe Trail Road Bridge was previously closed because of collapsed abutments, and Mill Road Bridge was restricted by a steel plate over a portion of the failed deck. These failing…

  4. Lebanon Valley College Rooftop Installation

    Lebanon Valley College was in need of better cell phone coverage for its employees and students. The installation site for the required equipment was an existing building rooftop not originally designed to hold that amount of weight. Another challenge was placing the equipment in the least obtrusive spot on that rooftop. RETTEW teamed with Verizon…

  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. Case New Holland Equipment Test Cell

    Case New Holland, a world leader in the agricultural and construction equipment business, needed a new facility to test harvesting equipment with 1,000-horsepower engines running under full loads for days at a time. The facility required a special room to give the client the flexibility to test multiple equipment configurations and various pieces of equipment….

  7. Commercial Boiler Manufacturing Plant Safety Consulting

    A leading manufacturer of commercial boilers and related heating, ventilating, and air conditioning products that has been in business for more than 150 years had been operating under outdated workplace safety procedures. In order to come into compliance with the Occupational Safety and Health Administration (OSHA) and avoid costly penalties, the client hired RETTEW’s Safety…

  8. Lancaster County Engineer

    Located in South Central Pennsylvania along the Susquehanna River, Lancaster County is more than 950 square miles, with a population of more than 507,000 residents throughout 60 municipalities. The County touts a diverse population with rich agricultural roots, a large Amish community, and a strong sense of history. In this role, RETTEW is responsible for…

  9. Lancaster Police Station Site Development

    The Lancaster City Bureau of Police outgrew its headquarters facility and needed a new state-of-the-art, four-story, 60,000-SF police station. In addition to housing offices for patrol and criminal investigation units, this highly specialized facility would need to accommodate investigation laboratories, a round-the-clock communications center, and a live ammunition firing range. Partnering with an architect nationally…

  10. Enola Low Grade Rail Trail – Safe Harbor Trestle Bridge Rehabilitation

    Built in 1905, standing 140 feet high and stretching 1,560 feet over the Conestoga River, the Safe Harbor Trestle Bridge is one of the longest, highest bridge structures in Lancaster County. It is currently being rehabilitated and is one of Pennsylvania’s top 10 priority trail gaps. The bridge is the only direct route to connect…

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Driving Safety Tips

For some of us, the most dangerous thing we do every day is drive to and from work….

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Corporate News, Industry News

RETTEW to Host Preventing Falls in Construction Program on May 7

Join us for an informative and engaging event as part of OSHA’s 2024 National Safety Stand-Down. This hybrid gathering…

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