PCL : Natchez Trace Parkway Bridge
FILTER PROJECTS BY

Natchez Trace Parkway Bridge

Project Overview

This high-level, double-arch precast bridge is part of the historic 450-mile trade route between Nashville, Tennessee and Natchez, Mississippi. The bridge is 1,572’ long and carries the two-lane parkway 155’ above Route 96 through a heavily wooded valley. Constructed on the valley floor, the foundations are massive footing excavated and the columns are cast-in-place piers. Using precast concrete segmental box sections for the deck and the arches, the project is truly a distinctive blend of art and bridge construction.

This project, constructed for the United States Department of Transportation, is composed of two arches constructed of precast members, spanning 462’ and 582’. To minimize damage to the valley sides and floor, the project team proposed a method of constructing the bridge without using supporting falsework for the arches during segment erection. Tied back to drilled shafts installed at the abutments, this solution eliminated significant falsework while accelerating the construction process. A Linkbelt 714 Ringer Crane erected the precast elements that weigh between 29 to 45 tons, thus minimizing the impact to the valley floor. The superstructure is composed of precast boxes, erected using the balanced cantilever method that eliminated cost and time-consuming falsework. These innovative accelerated bridge construction (ABC) measures used during construction minimized impacts to the adjacent highway as well as the environment, providing a successful project that is one of the country’s most remarkable transportation structures.

DETAILS

CLIENT:
U.S. Department of Transportation
PROJECT LOCATION:
Franklin, TN
PCL OFFICE:
Raleigh – Civil Construction (Transportation Infrastructure)
COMPANY:
PCL Civil Constructors, Inc.
SECTOR:
Civil
MARKET:
Bridges
DELIVERY METHOD:
General Contracting

Awards

Excellence in Highway Design - Federal Highway Administration

Presidential Design Award - National Endowment for the Arts

Award of Excellence - Portland General Cement Association

One the Top 125 Construction Projects for the last 125 Years - Engineering News