
Thomas Bridge - Indiana, PA
N 40° 39.861 W 079° 14.211
17T E 649036 N 4502992
Thomas Bridge crosses Crooked Creek.
Waymark Code: WM15ECG
Location: Pennsylvania, United States
Date Posted: 12/19/2021
Views: 18
Information board:
Town Lattice Truss
The Thomas Bridge is constructed with Town lattice trusses. The Town truss is named after Ithiel Town of New Haven, CT who patented the truss design in 1820.
The majority of covered bridges in Indiana County utilized a Town lattice truss system.
The design was adapted very quickly because of its use of smaller dimensional lumber, ease of construction, and its ability to cross spans up to 200 feet in length.
Ithiel Town is largely remembered as a designer of Greek Revival public buildings, especially County courthouses. Although he only built a few bridges himself, Town actively promoted his design, often while meeting with County Commissioners. He received royalties of a dollar a foot from bridge builders who used the Town truss. Covered bridge builders who used his design but failed to receive patent approval prior to construction, were charged two dollars a foot.
There are twenty Town lattice truss bridges remaining in Pennsylvania, three of them are in Indiana County. These include the Harmon, Trusal, and Thomas Covered Bridges.
Plaque:
Thomas Bridge
Reconstructed 1998
Indiana County Commissioners
Bernie Smith, Randy Degenkolb, James McQuown
Engineer: Gibson-Thomas Engineering Co., Inc.
Contractor: Speria Construction Inc.
Current Condition of Bridge: excellent
 Web Address: [Web Link]
 Description of Covered Bridge: This is the longest of the Indiana County Covered bridges, at 75 feet. The bridge crosses Crooked Creek near Yarnick's Farm Market. It has also been known as Thomas Ford Bridge and Thomas Station Bridge.
The outside is red panels, the inside Town Lattice with plank flooring.
 Year Built: 1879, rebuilt 1998
 Location (Road - City - State - Country): 280 Thomas Covered Bridge Road, Indiana, PA 15701
 Parking (If not at the bridge):: Not listed

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