Poor Condition Bridges in California
1,284 bridges rated Poor condition in California. 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 1,284 such bridges in California.
| Bridge | State | Condition | Year Built | ADT | Length |
|---|---|---|---|---|---|
| E ST-S5 ON RAMP | California | 1928 | 500 | 25.0 m | |
| INTERSTATE 5 | California | 1967 | 500 | 67.7 m | |
| STATE ROUTE 99 | California | 1964 | 500 | 71.3 m | |
| ARROYO MOCHO | California | 1988 | 500 | 25.0 m | |
| BIG CREEK | California | 1950 | 500 | 25.3 m | |
| CASSERLY CREEK TRIB NO 1 | California | 1915 | 500 | 7.4 m | |
| CASSERLY CREEK TRIB NO 2 | California | 1920 | 500 | 8.4 m | |
| NEWELL CREEK | California | 1958 | 500 | 12.9 m | |
| LOMPICO CREEK | California | 1940 | 500 | 6.7 m | |
| SHINGLE MILL GULCH | California | 1950 | 500 | 6.7 m | |
| SAN LORENZO RIVER | California | 1931 | 500 | 44.2 m | |
| CALABAZAS CREEK | California | 1961 | 500 | 12.2 m | |
| M.I.D. MAIN CANAL | California | 1926 | 500 | 20.4 m | |
| DUCK SLOUGH | California | 1975 | 500 | 21.9 m | |
| HOUGHTON CANAL | California | 1925 | 500 | 10.1 m | |
| PESCADERO CREEK | California | 1980 | 500 | 7.5 m | |
| DRY CREEK | California | 1927 | 490 | 34.7 m | |
| SALMON CREEK | California | 1922 | 486 | 11.9 m | |
| PRAIRIE CREEK | California | 1957 | 479 | 35.4 m | |
| T.I.D. CERES MAIN CANAL | California | 1914 | 473 | 9.8 m | |
| DELTA-MENDOTA CANAL | California | 1950 | 471 | 32.8 m | |
| UPPR | California | 1983 | 459 | 67.1 m | |
| GALINDO CREEK | California | 1950 | 450 | 7.4 m | |
| ST JOHNS RIVER | California | 1953 | 420 | 92.0 m | |
| NAVARRO RIVER | California | 1949 | 418 | 107.3 m | |
| MATTOLE RIVER | California | 1958 | 412 | 116.0 m | |
| SIERRA MADRE WASH | California | 1928 | 408 | 8.2 m | |
| CLARKS DITCH | California | 1976 | 402 | 19.2 m | |
| CALAVERAS RIVER | California | 1926 | 402 | 19.5 m | |
| HUASNA RIVER | California | 1940 | 401 | 58.5 m | |
| INTERSTATE 5 | California | 1962 | 400 | 69.9 m | |
| NANCE CANYON | California | 1920 | 400 | 14.7 m | |
| LAGUNA CREEK | California | 1945 | 400 | 23.5 m | |
| N FORK STANISLAUS RIVER | California | 1959 | 400 | 73.8 m | |
| SAN LORENZO RIVER | California | 1949 | 400 | 18.5 m | |
| SAN LORENZO RIVER | California | 1948 | 400 | 32.0 m | |
| DEADMAN CREEK | California | 1960 | 400 | 14.3 m | |
| LITTLE DRY CREEK | California | 1925 | 400 | 11.9 m | |
| E BRANCH LAKELAND CANAL | California | 1986 | 400 | 32.9 m | |
| MILL CREEK | California | 1930 | 400 | 8.5 m | |
| LAKE | California | 1966 | 390 | 6.1 m | |
| SUTTER-BUTTE CANAL | California | 1938 | 389 | 12.8 m | |
| SHASTA RIVER | California | 1968 | 379 | 31.4 m | |
| ROBINSON CREEK | California | 1954 | 379 | 8.8 m | |
| TROUT CREEK | California | 1969 | 371 | 7.5 m | |
| CALAVERAS RIVER | California | 1960 | 368 | 38.0 m | |
| NELDER CREEK | California | 1966 | 367 | 12.5 m | |
| DUCK SLOUGH | California | 1938 | 360 | 70.4 m | |
| SNOW CREEK | California | 1935 | 360 | 30.5 m | |
| FRANZ CREEK | California | 1946 | 350 | 9.8 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.