PYMATUNING SPILLWAY TRAIL/MESSERALL TRUSS RELOCATION AND REHABILITATION

CRAWFORD COUNTY, PA

This project consists of the design of the Pymatuning Spillway Trail Extension from Fries Road to South Chestnut Street. The project includes the adaptive reuse (relocation and rehabilitation) of the historic Messerall Road bowstring arch bridge. The truss is being relocated from an abandoned county alignment to provide a crossing of Linesville Creek for the trail in Pymatuning State Park. The project includes the design of approximately four miles of trail. 

DESIGN, ENVIRONMENTAL, CONSTRUCTION , INFRASTRUCTURE, COMMUNITY

THE CHALLENGE

The challenge with this project has been Messerall Road Bridge Rehabilitation; the trail design presented little challenge. Originally constructed in approximately 1870, the Messerall Road Bridge is a 99-foot span, wrought-iron bowstring tied arch. The bridge is a rare and remarkably complete example of the Wrought Iron Bridge Company’s “column, plate, and channel” design and one of the earliest examples of wrought iron construction within the state of Pennsylvania. The bridge was closed to traffic in 1987 as the road it carried was realigned to avoid the adjacent timber processing plant. The timber deck and stringers were removed at that time and the truss remained abandoned from that time until the present.

 

pxl 20210810 174507307
20190820 125557

HOW WE HELPED

McCormick Taylor’s team was selected to provide all services necessary to design the proposed trail extension and to relocate and rehabilitate the historic truss from its abandoned site to the proposed trail crossing. Services have included: trail design, environmental clearance and permitting, hands-on structural inspection, preliminary design of both the trail and the bridge, final design, pedestrian railing and decking system, conceptual erection plan, new substructure design, plans, specification, and final estimate. Construction consultation services for shop drawing review and unforeseen repairs, inspection, and design are ongoing for both the trail and the truss.

RESULTS

The project provides the design for four miles of trail. In addition, the historic Messerall Road bowstring arch bridge is being relocated from an abandoned county alignment to the rail-trail extension in Pymatuning State Park. Unique repairs include the use of hot driven rivets, low chord splice plate replacements, top chord plating repairs, and floorbeam hanger replacements. All repairs were selected to be within the Secretary of the Interior’s Standards and received a “no adverse effect” finding.

 

Construction of the trail and reassembly of the bridge are anticipated to be complete by the summer of 2022.

pxl 20210810 142718810