High-triangular truss

The truss is related to the Pengram. It consists of sloping struts like a Howe truss, and sloping tension rods like a Pratt truss with a polygonal top chord. It seems these were built only by the Indiana Bridge Company of of Muncie, Indiana.

Peterson Ford Bridge (Delaware County, Indiana)
Built 1902; rehabilitated 1985
Through truss bridge over Mississinewa River on CR 850 North


Seven Mile Road Bridge (Preble County, Ohio)
Built 1906 by the Indiana Bridge Co. of Muncie, In., Restored 2014-15
Polygonal Warren through truss bridge over Seven Mile Creek on TR 331
Restored and open to traffic