Central Construction Co.

of Harrisburg, Pennsylvania
While operating in Ohio, according to https://books.google.com/books?id=lkIoAAAAYAAJ&pg=RA1-PA239&... it was headquartered in Harrisburg, Pennsylvania.

State Line Road Bridge (Columbiana County, Ohio)
Built 1914
Pony truss bridge over North Fork Little Beaver Creek on State Line Road (TR 945)
Open to traffic

Walhonding River OH 715 Bridge (Coshocton County, Ohio)
Built 1914
Through truss bridge over Walhonding River on OH 715
Bypassed

Waterford Road Bridge (Columbiana County, Ohio)
Built 1911
Pony truss bridge on Waterford Road (TR 942)
Demolished and replaced.