Poor Condition Bridges in Iowa

4,423 bridges rated Poor condition in Iowa. FHWA National Bridge Inventory.

Bridges Rated Poor Condition

A bridge is rated Poor when one or more of its major components (deck, superstructure, or substructure) has a condition rating of 4 or below on the FHWA 0–9 scale. Poor condition does not mean imminent danger of collapse, but indicates significant deterioration requiring priority maintenance or replacement. There are 4,423 such bridges in Iowa.

Clear
Bridge State Condition Year Built ADT Length
MUDDY CREEK Iowa 1967 628 7.9 m
STEPHENS CREEK Iowa 1960 628 31.1 m
SMALL STREAM Iowa 1967 627 23.8 m
CEDAR RIVER Iowa 1948 620 349.0 m
RICHLAND CREEK Iowa 1932 620 55.8 m
SMALL STREAM Iowa 1932 620 9.1 m
LINDNER CREEK Iowa 1972 620 10.8 m
BRANCH BEAVER CREEK Iowa 1968 619 9.8 m
IOWA RIVER Iowa 1988 619 184.1 m
DRAINAGE Iowa 1960 616 18.9 m
ZADIE CREEK Iowa 1925 610 10.7 m
TURKEY RIVER Iowa 1953 609 104.5 m
DRAINAGE Iowa 1976 609 13.4 m
UNNAMED CREEK Iowa 1961 598 23.8 m
JIM CREEK Iowa 1972 597 38.1 m
DD Iowa 1959 597 55.5 m
DRAINAGE Iowa 1949 597 46.3 m
HOWERDON CREEK Iowa 1972 597 21.3 m
TOM CREEK Iowa 1962 597 9.8 m
DIVERSION DITCH Iowa 1962 597 82.6 m
CRANE CREEK Iowa 1968 590 46.6 m
BEAR CR Iowa 1930 589 6.7 m
HONEY CREEK Iowa 1973 589 45.7 m
SILVER CREEK Iowa 1969 589 31.4 m
ODEBOLT CREEK Iowa 1964 589 31.4 m
WILLOW CREEK Iowa 1964 580 23.5 m
CRANE CREEK Iowa 1968 579 9.8 m
BLACKHAWK CREEK Iowa 1967 579 54.3 m
BRANCH IOWA RIVER Iowa 1969 579 10.1 m
LITTLE CEDAR Iowa 1964 579 55.8 m
NO LIZARD CK DD #171 Iowa 1965 578 21.0 m
OVER CC RR Iowa 1932 578 47.9 m
FAMERS GARRETSON DITCH Iowa 1962 578 66.8 m
MULE SLOUGH Iowa 2008 577 7.6 m
MIDDLE RACOON RIVER Iowa 1951 574 102.7 m
HINKLE CREEK Iowa 1962 570 6.4 m
DRAINAGE Iowa 1976 569 31.4 m
WEST IOWA RIVER Iowa 1979 569 34.7 m
LITTLE MAPLE RIVER Iowa 1974 569 10.4 m
SM STREAM Iowa 1974 569 10.4 m
DD NO 4 Iowa 1974 559 23.8 m
MILL CREEK Iowa 1958 550 44.5 m
WAPSIPINICON RIVER Iowa 1956 550 38.7 m
MILL CREEK Iowa 1956 550 17.4 m
PRAIRIE CREEK Iowa 1967 550 39.0 m
MINERVA CREEK Iowa 1972 550 13.4 m
WEST FORK LITTLE SIOUX Iowa 1955 549 65.2 m
LIZARD CREEK Iowa 1965 549 61.0 m
CREEK Iowa 1955 549 7.3 m
LIZARD CREEK Iowa 1965 549 61.0 m

About Poor Condition Bridge Ratings

FHWA rates bridge components on a 0–9 scale. A rating of 4 or below on any major component (deck, superstructure, substructure) classifies the bridge as Poor condition. The bridge remains open to traffic but requires priority attention. Bridges rated 0–2 are immediately closed.