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 |
|---|---|---|---|---|---|
| MORRIS CREEK | Idaho | 1952 | 50 | 12.4 m | |
| LITTLE MALLARD CREEK | Idaho | 1984 | 50 | 7.3 m | |
| PETTIT LAKE CREEK | Idaho | 1982 | 50 | 9.8 m | |
| NORTH FORK WOOD RIVER | Idaho | 1950 | 50 | 10.4 m | |
| VALLEY CREEK | Idaho | 1950 | 50 | 20.7 m | |
| NORTH FORK OF WOOD RIVER | Idaho | 1955 | 50 | 7.3 m | |
| NOBLE DRAIN | Idaho | 1955 | 50 | 7.9 m | |
| EAST FORK FALL CREEK | Idaho | 2013 | 50 | 12.4 m | |
| MUD CREEK | Idaho | 1986 | 50 | 12.5 m | |
| SAGE CREEK | Idaho | 1965 | 50 | 9.4 m | |
| SELWAY RIVER-OHARA | Idaho | 1956 | 50 | 107.0 m | |
| JIM FORD CREEK | Idaho | 1975 | 50 | 15.2 m | |
| LAWYERS CREEK;PARK BR | Idaho | 1917 | 50 | 19.2 m | |
| BOULDER CREEK | Idaho | 1957 | 50 | 12.2 m | |
| LOGAN CREEK | Idaho | 1980 | 50 | 7.6 m | |
| NO DATA ENTERED | Idaho | 1972 | 50 | 26.4 m | |
| S.FK.COEUR DALENE RIVER | Idaho | 1972 | 50 | 10.7 m | |
| UPRR;N.SPENCER RR OP | Idaho | 1936 | 50 | 90.2 m | |
| CAMAS CREEK | Idaho | 1953 | 50 | 8.2 m | |
| CAMAS CREEK | Idaho | 1981 | 50 | 9.8 m | |
| BOULDER CR CALLAHAN | Idaho | 1961 | 50 | 9.9 m | |
| GRASS CREEK | Idaho | 1973 | 50 | 8.7 m | |
| UPPER W. BRANCH | Idaho | 1954 | 50 | 10.0 m | |
| E.F.CANUCK CR | Idaho | 1990 | 50 | 9.4 m | |
| RUNNING CR | Idaho | 1956 | 50 | 9.9 m | |
| LEMHI RIVER(BAGLEY BR) | Idaho | 1991 | 50 | 22.6 m | |
| GRASS CREEK | Idaho | 1972 | 50 | 12.3 m | |
| LEWISVILLE CANAL | Idaho | 1960 | 50 | 11.9 m | |
| KALISPELL CREEK | Idaho | 1955 | 50 | 8.9 m | |
| MORES CREEK | Idaho | 1982 | 50 | 9.1 m | |
| BEAVER CREEK | Idaho | 1983 | 50 | 16.8 m | |
| W.F. STEAMBOAT CREEK | Idaho | 1956 | 50 | 8.8 m | |
| STEAMBOAT CREEK | Idaho | 1956 | 50 | 15.4 m | |
| GOLD CREEK | Idaho | 1963 | 50 | 7.6 m | |
| ST JOE RIVER | Idaho | 1934 | 50 | 53.0 m | |
| N.F. ST JOE RIVER | Idaho | 1935 | 50 | 36.3 m | |
| N.F. CDA RIVER | Idaho | 1950 | 50 | 45.6 m | |
| BIG CREEK | Idaho | 1939 | 50 | 29.9 m | |
| GRANITE CREEK | Idaho | 1964 | 50 | 11.1 m | |
| S.FK.SALMON RIVER | Idaho | 1940 | 40 | 56.1 m | |
| CAMAS CREEK | Idaho | 1965 | 40 | 14.3 m | |
| CAMAS CREEK | Idaho | 1965 | 40 | 12.5 m | |
| YOOSA CREEK | Idaho | 1963 | 40 | 10.0 m | |
| OSIER CREEK | Idaho | 1954 | 40 | 8.7 m | |
| CDA RIVER;SPRINGSTON BR | Idaho | 1955 | 40 | 92.0 m | |
| BLACK PRINCE CREEK | Idaho | 1965 | 40 | 10.1 m | |
| YOOSA CREEK | Idaho | 1963 | 40 | 12.6 m | |
| CAMAS CREEK | Idaho | 1950 | 30 | 13.1 m | |
| CAMAS CREEK | Idaho | 1920 | 30 | 35.7 m | |
| COTTONWOOD CREEK | Idaho | 1960 | 30 | 9.1 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.