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
SOUTH ENGLISH RIVER Iowa 1964 480 23.5 m
S WYACONDAH DITCH Iowa 1968 480 46.0 m
STREAM Iowa 1966 480 30.8 m
DRAINAGE Iowa 1968 479 17.7 m
CREEK Iowa 1947 478 9.1 m
HOWERDON CREEK Iowa 1954 477 37.2 m
TOM CREEK Iowa 1954 477 38.7 m
NISHNABOTNA RIVER Iowa 1949 477 111.3 m
CLANTON CREEK Iowa 1932 477 6.1 m
RAILROAD CREEK Iowa 1900 472 10.4 m
DRAINAGE Iowa 1900 472 8.8 m
HUNTER CREEK Iowa 1950 471 10.7 m
CEDAR CREEK Iowa 1963 470 21.3 m
MC CLURE CREEK Iowa 1970 470 31.1 m
DRY RUN CREEK Iowa 1964 469 16.8 m
CREEK Iowa 1970 469 23.8 m
WEST FORK LITTLE SIOUX Iowa 1963 469 62.2 m
INDIAN CREEK Iowa 1965 469 14.0 m
SEVENMILE CREEK Iowa 1971 468 46.9 m
CAMP CREEK Iowa 1950 467 24.4 m
RIVER BEND CREEK Iowa 1963 462 9.8 m
WAPSIPINICON RIVER Iowa 1940 462 46.6 m
CREEK Iowa 1960 462 6.1 m
CLOVERDALE CREEK Iowa 1958 459 25.0 m
WALNUT CREEK Iowa 1976 459 17.7 m
WEST CREEK Iowa 1958 459 45.7 m
PICKERAL RUN Iowa 1993 459 39.0 m
DRAINAGE DITCH Iowa 1914 459 7.0 m
SKUNK RIVER Iowa 1992 459 42.1 m
STREAM Iowa 1970 453 8.5 m
LITTLE WAPSIPINICON Iowa 1967 452 8.5 m
MIDDLE RIVER Iowa 1969 450 17.4 m
LITTLE MILL CREEK Iowa 1935 450 8.2 m
PRAIRIE CREEK Iowa 1963 450 23.2 m
UNNAMED STREAM Iowa 1964 450 39.6 m
MIDDLE RIVER Iowa 1932 450 78.3 m
WATERWAY Iowa 1963 450 43.9 m
WATERWAY Iowa 1970 450 23.8 m
MAPLE RIVER Iowa 1964 450 23.5 m
MIDDLE FK ENGLISH RIVER Iowa 1970 450 39.0 m
IOWA RIVER Iowa 1961 450 54.9 m
OVERFLOW CLANTON CREEK Iowa 1932 450 38.7 m
MUD CREEK Iowa 1970 450 45.7 m
RALSTON CREEK Iowa 1935 449 19.8 m
DRAINAGE DITCH 97 Iowa 1968 447 7.9 m
EAST BOYER RIVER Iowa 1958 443 47.2 m
BRUSH CREEK Iowa 1957 442 44.2 m
WINNEBAGO RIVER Iowa 1964 442 66.8 m
N. FORK LONG CREEK Iowa 1961 440 25.0 m
WHITE BREAST CREEK Iowa 1957 440 62.2 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.