Poor Condition Bridges in Idaho
250 bridges rated Poor condition in Idaho. 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 250 such bridges in Idaho.
| Bridge | State | Condition | Year Built | ADT | Length |
|---|---|---|---|---|---|
| WOLF LODGE CREEK | Idaho | 1934 | 150 | 26.5 m | |
| OROFINO CREEK | Idaho | 1958 | 140 | 13.1 m | |
| BIG WILLOW CREEK | Idaho | 1962 | 130 | 21.6 m | |
| W.FK.ST MARIES RIVER | Idaho | 1973 | 130 | 9.1 m | |
| C CANAL | Idaho | 1962 | 110 | 7.9 m | |
| I 90;MILL ROAD IC | Idaho | 1963 | 110 | 73.2 m | |
| UPPER CROOKED RIVER | Idaho | 1965 | 110 | 7.9 m | |
| BEAR RIVER | Idaho | 1972 | 100 | 30.5 m | |
| BIG CREEK TRESTLE | Idaho | 1912 | 100 | 22.6 m | |
| JORDAN CREEK | Idaho | 1993 | 100 | 9.8 m | |
| YANKEE FORK | Idaho | 1992 | 100 | 9.1 m | |
| ELK CREEK TRESTLE | Idaho | 1912 | 100 | 25.9 m | |
| AGATHA CREEK TRESTLE | Idaho | 1912 | 100 | 34.1 m | |
| HORNET CREEK | Idaho | 1949 | 100 | 12.2 m | |
| ANDERSON CREEK | Idaho | 1983 | 100 | 9.1 m | |
| SQUAW CREEK | Idaho | 1960 | 100 | 7.3 m | |
| JORDAN CREEK | Idaho | 1957 | 100 | 8.1 m | |
| BLACK PRINCE TRESTLE | Idaho | 1912 | 100 | 42.7 m | |
| ELDORADO CREEK | Idaho | 1967 | 99 | 9.8 m | |
| SUCCOR CREEK | Idaho | 1930 | 90 | 28.7 m | |
| N.FK.PAYETTE RIVER | Idaho | 1959 | 90 | 73.2 m | |
| POTLATCH R(ARROW JCT BR) | Idaho | 1920 | 90 | 39.9 m | |
| ROAD CREEK | Idaho | 2022 | 90 | 12.2 m | |
| THOUSAND SPRINGS CREEK | Idaho | 1926 | 80 | 7.9 m | |
| JIM FORD CREEK | Idaho | 1965 | 80 | 15.8 m | |
| ST ANTHONY CANAL | Idaho | 1971 | 70 | 7.9 m | |
| I 84;VINYARD RD GS | Idaho | 1965 | 70 | 67.1 m | |
| M.FK.WEISER RIVER | Idaho | 1957 | 70 | 9.8 m | |
| BUTTE MARKET LAKE CANAL | Idaho | 1962 | 61 | 18.3 m | |
| SALMON RIVER;SE.CLAYTON | Idaho | 1930 | 60 | 46.3 m | |
| SILVER CREEK | Idaho | 1978 | 60 | 19.8 m | |
| TRAIL CREEK | Idaho | 1995 | 60 | 7.6 m | |
| VINSON WASH | Idaho | 1930 | 60 | 11.0 m | |
| GRANDVIEW IRRIGATION CNL | Idaho | 1991 | 60 | 7.9 m | |
| HENRYS FK.SNAKE R;FRITZ | Idaho | 1967 | 50 | 60.0 m | |
| PORTNEUF MARSH VAL.CNL | Idaho | 1968 | 50 | 8.2 m | |
| CHESTERFIELD CANAL | Idaho | 2005 | 50 | 14.0 m | |
| LEWISVILLE CANAL | Idaho | 1960 | 50 | 11.9 m | |
| MILNER GOODING CANAL | Idaho | 1940 | 50 | 27.4 m | |
| EAST MAIN CANAL | Idaho | 1950 | 50 | 9.8 m | |
| MILNER GOODING CANAL | Idaho | 1940 | 50 | 24.1 m | |
| EAST MAIN CANAL | Idaho | 1977 | 50 | 11.3 m | |
| CAMAS CREEK | Idaho | 1981 | 50 | 9.8 m | |
| WEISER RIVER | Idaho | 1988 | 50 | 25.9 m | |
| LEMHI RIVER(BAGLEY BR) | Idaho | 1991 | 50 | 22.6 m | |
| NOBLE DRAIN | Idaho | 1955 | 50 | 7.9 m | |
| MUD CREEK | Idaho | 1986 | 50 | 12.5 m | |
| SAGE CREEK | Idaho | 1965 | 50 | 9.4 m | |
| JIM FORD CREEK | Idaho | 1975 | 50 | 15.2 m | |
| ST JOE RIVER | Idaho | 1934 | 50 | 53.0 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.