SR 2 - LITWAR BRIDGE AND APPROACHES
| State:
West Virginia (McDowell County) Agency: Date: Type
of Improvement: Construction
Cost:
|
 The HMB-designed Litwar Bridge during construction |
Firm's Project
Manager(s):
Zane T. Young, P.E. - roadway design
Bryan Stopper, P.E. - structural design
Project Description:
HMB provided the bridge and approach design for the Litwar Bridge on West Virginia
State Route 2. The structure was a three-span (52m.-75m.-52m.) WSPG bridge over
the Tug Fork River and three sets of tracks on the Norfolk and Western Railroad.
The bridge features 80-meter radius curves on each end with a tangent in the
center. The project required a design location study, competitive alternate
design studies in concrete and steel for the structure with a recommendation
to the WVDOT for the most feasible alternative, and then completion of design
and right-of-way plans and documents in the metric scale for construction. Cost
estimates, plan and elevation drawings, and typical sections were included in
the conceptual bride study for each alternate. HMB performed a scour analysis
and a hydraulic analysis to gauge the impact of the proposed structure on the
stream flow. HMB provided all field surveys; detailed maintenance of traffic
plans, including permanent and temporary signing and pavement marking plans;
and sequence of construction plans and specifications.