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
INDIAN CREEK Iowa 1930 4,059 13.7 m
BLACKHAWK CREEK Iowa 1950 4,004 14.3 m
FOUR MILE CREEK Iowa 1978 3,908 75.0 m
DES MOINES RIVER Iowa 1911 3,844 153.3 m
MAPLE RIVER Iowa 1967 3,720 93.0 m
SMALL CREEK Iowa 1886 3,705 11.6 m
UP RR & LYNN CK Iowa 1971 3,584 216.4 m
RAILROAD CREEK Iowa 1961 3,529 11.0 m
FLOYD RIVER Iowa 1962 3,523 93.0 m
CEDAR RIVER Iowa 1979 3,461 208.8 m
BLACK HAWK CREEK Iowa 1931 3,230 54.6 m
OVER UP RR & STREET Iowa 1937 3,200 201.2 m
HINKLE CREEK Iowa 1973 3,197 31.4 m
WAPSI CREEK Iowa 1971 3,080 31.4 m
INDIAN CREEK Iowa 1935 3,013 13.4 m
I-29 Iowa 1959 2,980 64.0 m
BIG SUGAR CREEK Iowa 1979 2,980 88.7 m
MOSQUITO CREEK Iowa 1965 2,949 46.3 m
BIG CREEK Iowa 1957 2,930 127.4 m
MUD CREEK Iowa 1927 2,902 6.7 m
ODEBOLT CREEK Iowa 1967 2,884 46.6 m
IOWA RIVER Iowa 1955 2,838 162.8 m
ROCK CREEK Iowa 1965 2,838 31.1 m
RACCOON AND RR Iowa 1936 2,825 288.6 m
BEAR CREEK Iowa 1969 2,740 38.7 m
DRY RUN CREEK Iowa 1905 2,673 13.4 m
DRAINAGE DITCH Iowa 1953 2,671 7.6 m
SMALL NATURAL STREAM Iowa 1954 2,671 28.0 m
DRAINAGE DITCH Iowa 1953 2,642 7.3 m
ENGLISH CREEK Iowa 1975 2,640 62.5 m
SUGAR CREEK Iowa 1933 2,628 7.9 m
JOHNSON CREEK Iowa 1933 2,628 10.7 m
BNSF RR AND STREAM Iowa 1964 2,620 75.0 m
EAST BLUE CREEK Iowa 1930 2,583 28.0 m
LITTLE SIOUX RIVER Iowa 1963 2,573 61.9 m
RALSTON CREEK Iowa 1910 2,487 10.4 m
GALLS CREEK Iowa 1930 2,450 10.4 m
DRAINAGE DITCH Iowa 1954 2,396 25.0 m
SOLDIER CR (DD NO 247) Iowa 1974 2,364 31.4 m
RALSTON CREEK Iowa 1930 2,356 9.8 m
ELKHORN CREEK Iowa 1929 2,340 18.9 m
IOWA RIVER Iowa 1950 2,340 385.6 m
BUCKLEY CREEK Iowa 1967 2,340 31.1 m
PERRY CREEK Iowa 1963 2,330 17.1 m
WAPSI RIVER OVERFLOW Iowa 1922 2,310 83.8 m
DD NO 247 Iowa 1974 2,284 23.8 m
MISSISSIPPI RIVER Iowa 1931 2,200 496.8 m
CEDAR RIVER Iowa 1979 2,193 208.8 m
WINNEBAGO RIVER Iowa 1963 2,192 39.0 m
RALSTON CREEK Iowa 1911 2,176 6.4 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.