Crest Tunnel
Tunnel on the Union Pacific Railroad (formerly Missouri Pacific) northwest of Omaha
Open to railroad traffic
Built 1903-05

Cricket Tunnel
Tunnel on the Union Pacific Railroad (formerly Missouri Pacific) just south of Omaha
Open to railroad traffic
Built 1903-05

Haggard's Ford Swinging Bridge
Swinging bridge over Bear Creek next to Cottonwood Road
Open to pedestrians only
Built 1939-41 by the Works Progress Administration; rehabilitated 1977

Hog Creek US 65 Bridge
Lost closed-spandrel arch bridge over Hog Creek on US 65 near Valley Springs
Replaced by a new bridge in 1966

Rolands Fork Bridge
Concrete tee beam bridge over Rolands Fork on County Rd 607
Open to traffic
Built 1928

WPA Road Bridge
Low-water bridge over Long Creek on WPA Road (CR 4) in Alpena
Open to traffic
Built 1942 by the Works Progress Administration

Zinc Swinging Bridge
Swinging footbridge over Sugar Orchard Creek in the town of Zinc
Open to pedestrians only
Built ca. 1927