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The SR 2047 (U.S. 219 Business) Bridge over Flaugherty Creek is a stone masonry arch bridge listed on Pennsylvania’s Historic Bridge Inventory, and was deemed structurally deficient after 100 years of wear and tear from exposure to the elements and heavy traffic volume. The bridge is one of the few stone masonry arch bridges in…
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Under National Bridge Inspection Standards, only bridges with spans greater than 20 feet are required to be inspected every two years. When South Middleton Township suspected an issue with a weight-restricted bridge spanning under 20 feet, they had no recent inspection on which to rely. RETTEW completed a bridge inspection for the Township and revealed…
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The Pennsylvania Department of Transportation (PennDOT) needed their guidelines for preparing waterway and environmental permits organized efficiently to improve the permitting process. In addition, guidelines for preparing earth disturbance and waterway permits were either absent or not easily found. This resulted in inconsistent permit applications, technical deficiency letters from permitting agencies, and missed project schedules….
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The Pennsylvania Turnpike Commission (PTC) replaced the Allegheny River Bridge as part of a roadway reconstruction project. To comply with the U.S. Army Corp of Engineers and Pennsylvania Department of Environmental Protection (PA DEP) regulations, PTC needed to construct and maintain 1.8 acres of replacement wetlands to satisfy the wetland mitigation requirements associated with aquatic…
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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 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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Under an open-end work order for the Pennsylvania Turnpike Commission, RETTEW provided preliminary design and final engineering services for a resurfacing project along the Northeast Extension. The project required field inspection of a 5-mile stretch to identify milling and paving limits, safety issues, drainage repairs, and areas requiring full-depth patching. Knowing digital field data collection…
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In order to complete a new 500,000-SF retail development along the primary east-west highway serving this region, Manheim Township and the Pennsylvania Department of Transportation (PennDOT) required an extensive analysis of off-site intersection improvements to SR 4011. The client needed a detailed traffic impact study to determine the major roadway improvements that would minimize traffic…
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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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