Black Diamond Trail (1)
Built 1935 (1,491)
Built during 1930s (12,198)
ISHC Standard Series T (198)
Iowa (6,811)
Iowa State Highway Commission (837)
Johnson County, Iowa (220)
Lost (29,049)
Lost 2009 (359)
Lost during 2000s (4,420)
| M-frame portal (88)
One-lane traffic (7,921)
Owned by county (21,656)
Pratt through truss (6,127)
Pratt truss (10,403)
Replaced by new bridge (19,749)
Span length 100-125 feet (4,573)
Through truss (17,185)
Total length 100-125 feet (5,415)
Truss (35,934)
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