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 the traffic control plan required to facilitate construction of a new center pier within the existing turnpike roadway section.
RETTEW was also successful in streamlining the Joint and NPDES Permits for the project by coordinating alternative sequencing and best management practice maintenance directly with the Pennsylvania Department of Environmental Protection and the Dauphin County Conservation District. The construction phase had no delays or major claims.