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.
| Bridge | State | Condition | Year Built | ADT | Length |
|---|---|---|---|---|---|
| OTTER CREEK | Iowa | 1972 | 21 | 25.0 m | |
| BIG INDIAN CREEK | Iowa | 1960 | 21 | 30.8 m | |
| SLIPPERY ELM HOLLOW | Iowa | 1966 | 21 | 7.3 m | |
| RELIEF | Iowa | 1961 | 21 | 7.3 m | |
| WALNUT CREEK | Iowa | 1900 | 21 | 41.5 m | |
| STREAM | Iowa | 1965 | 21 | 12.2 m | |
| LOST GROVE CREEK | Iowa | 1914 | 21 | 7.0 m | |
| HARDIN CREEK | Iowa | 1959 | 21 | 23.8 m | |
| DR TO ENGLISH CREEK | Iowa | 1900 | 21 | 6.1 m | |
| ELKHORN CREEK | Iowa | 1958 | 21 | 44.5 m | |
| HOLCOMB CREEK | Iowa | 1975 | 21 | 12.5 m | |
| BOONE RIVER | Iowa | 1927 | 21 | 15.5 m | |
| DD #6 | Iowa | 1970 | 21 | 6.4 m | |
| DRAINAGE DITCH #10 | Iowa | 1994 | 21 | 7.6 m | |
| BRANCH OF SILVER CREEK | Iowa | 1960 | 21 | 7.6 m | |
| HONEY CREEK | Iowa | 1953 | 21 | 23.5 m | |
| HONEY CREEK | Iowa | 1980 | 21 | 9.8 m | |
| CREEK | Iowa | 1991 | 21 | 10.7 m | |
| SMALL | Iowa | 1978 | 21 | 13.1 m | |
| BRANCH SUGAR CREEK | Iowa | 1917 | 21 | 7.0 m | |
| DRAINAGE DITCH | Iowa | 1966 | 21 | 7.9 m | |
| CRANE CREEK | Iowa | 1951 | 21 | 24.4 m | |
| BR OF ENGLISH CREEK | Iowa | 1951 | 21 | 6.1 m | |
| BR OF ENGLISH CREEK | Iowa | 1938 | 21 | 6.7 m | |
| RAT CREEK | Iowa | 1900 | 21 | 14.0 m | |
| OVERFLOW | Iowa | 1900 | 21 | 14.3 m | |
| SMALL STREAM | Iowa | 1900 | 21 | 13.7 m | |
| BR DES MOINES RIVER | Iowa | 1878 | 21 | 182.9 m | |
| SOUTH TIMBER CREEK | Iowa | 1950 | 21 | 23.2 m | |
| SNIPE CREEK | Iowa | 1939 | 21 | 7.9 m | |
| DAVISONS CREEK | Iowa | 1951 | 21 | 7.0 m | |
| LINN CREEK | Iowa | 1916 | 21 | 6.4 m | |
| MINERVA CR | Iowa | 1917 | 21 | 7.9 m | |
| LITTLE ASHER CREEK | Iowa | 1944 | 21 | 23.5 m | |
| CREEK | Iowa | 1947 | 21 | 8.2 m | |
| CREEK | Iowa | 1940 | 21 | 7.3 m | |
| N MINERVA CREEK | Iowa | 1917 | 21 | 27.4 m | |
| STREAM | Iowa | 1900 | 21 | 15.2 m | |
| ELK CREEK | Iowa | 1957 | 21 | 16.5 m | |
| CREEK | Iowa | 1942 | 21 | 6.7 m | |
| BARRY CREEK | Iowa | 1938 | 21 | 7.0 m | |
| STREAM | Iowa | 1944 | 21 | 9.1 m | |
| STREAM | Iowa | 1943 | 21 | 9.4 m | |
| SMALL STREAM | Iowa | 1992 | 21 | 12.2 m | |
| WHITE FOX CREEK | Iowa | 1975 | 21 | 21.6 m | |
| STREAM | Iowa | 1940 | 21 | 11.9 m | |
| DD 98 | Iowa | 1972 | 21 | 10.1 m | |
| LIZARD CREEK | Iowa | 1921 | 21 | 19.5 m | |
| DD 21 | Iowa | 1960 | 21 | 9.8 m | |
| DD 175 | Iowa | 1926 | 21 | 16.5 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.