The Challenge
The Pennsylvania Turnpike Commission
identified a number of potential safety issues along aging
sections of the Pennsylvania Turnpike. The safety concerns
existed between mileposts A-49 and A-59 along the Northeast
Extension of the Turnpike (I-476) in Montgomery and Lehigh
Counties and included outdated median guide rails, worn pavement
surfaces, and deteriorating bridges.
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Our Answer
RETTEW provided transportation
design for the $21 million improvement project. RETTEW’s
services included resurfacing more than ten miles of the Turnpike
mainline, Lehigh Valley Interchange, and the Allentown Service
Plaza as well as shoulder repairs, median reconstruction,
pavement cross-slope corrections, repairs to 12 mainline and
overhead bridges, access ramp reconstruction, guide rail upgrades,
drainage improvements, and the design of the maintenance and
protection of traffic for all construction activities. These
enhancements greatly improve the safety of this 10-mile stretch
of the Pennsylvania Turnpike.
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