Foothills Parkway Bridges 9 and 10, as they
are currently known, are located in a scenic, environmentally
sensitive area with limited access in the Tennessee mountains.
The Foothills Parkway is designed to provide views of the
Great Smoky Mountains National Park and disperse traffic to
relieve congestion within the central part of the park.
The bridge was originally developed by the Eastern Federal
Lands Division of the National Highway Administration as a
precast segmental design using the progressive placement construction
method to allow “top-down construction.” During
the bidding phase, PCL Construction and Finley McNary, teamed
to develop a scheme that used the same “ top - down
construction ” but was based on a cast-in-place segmental
design using the balanced cantilever construction method.
Finley McNary also provided construction engineering for the
project.
The original $12.8 million contract was awarded to PCL Civil
Constructors, Inc. in February of 1999. The redesign offered
a faster, easier construction process, which was also significantly
less expensive to the owner.
The bridges are the first two of 10 needed to complete the
1.6-mile “missing link” for the Foothills Parkway
along the Blount and Sevier County line in Tennessee.
Services
Provided:
• Redesign of Superstructure
• Integrated Segment Drawings
• Geometrical Control of Casting, Erection, and Procedural
Manuals
• Casting Curves
• Analysis of Construction Loading
• Design of Abutment Segment and Pier Table Falsework
• Erection Procedures
• Post-Tensioning Calculations
• Technical Assistance