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 |
|---|---|---|---|---|---|
| SANTA ROSA CREEK | California | 2008 | 6,000 | 27.2 m | |
| TULE RIVER | California | 1958 | 6,000 | 88.1 m | |
| HARKINS SLOUGH | California | 1950 | 6,000 | 7.9 m | |
| DEEP WATER CANAL & RR | California | 1997 | 6,000 | 164.8 m | |
| WATSONVILLE SLOUGH | California | 1941 | 6,000 | 27.4 m | |
| POOL CREEK | California | 1967 | 5,900 | 26.5 m | |
| SR 20 UP RR BNSF AMTRAK | California | 1963 | 5,875 | 156.4 m | |
| SR 20 UP RR BNSF AMTRAK | California | 1963 | 5,875 | 136.6 m | |
| HOUGHTON CANAL | California | 1925 | 5,867 | 8.2 m | |
| T.I.D. LOWER LATERAL #4 | California | 1925 | 5,844 | 7.0 m | |
| EAST TWIN CREEK CHANNEL | California | 1961 | 5,814 | 16.5 m | |
| SAN RAMON CREEK | California | 1959 | 5,800 | 25.0 m | |
| CLEAR CREEK | California | 1931 | 5,673 | 10.0 m | |
| JEWETT CREEK | California | 1968 | 5,576 | 24.6 m | |
| ROUTE I 280 | California | 1963 | 5,512 | 55.6 m | |
| FIR DITCH | California | 1951 | 5,500 | 11.6 m | |
| RODMAN NARROWS(CLEAR LAK | California | 1958 | 5,315 | 95.4 m | |
| TWIN WARM CREEK | California | 1960 | 5,300 | 21.3 m | |
| DUCK CREEK | California | 1968 | 5,300 | 20.6 m | |
| SAN TOMAS AQUINO CREEK | California | 1973 | 5,291 | 42.1 m | |
| SAN TOMAS AQUINO CREEK | California | 1966 | 5,269 | 34.4 m | |
| DELTA-MENDOTA CANAL | California | 1948 | 5,100 | 37.5 m | |
| WHITEWATER RIVER | California | 1970 | 5,074 | 138.1 m | |
| DEAN CRK RD & DEAN CREEK | California | 1967 | 5,000 | 113.7 m | |
| SANTA MARIA RIVER | California | 1955 | 5,000 | 366.7 m | |
| WATSONVILLE SLOUGH | California | 2017 | 5,000 | 30.5 m | |
| MATADERO CREEK | California | 1989 | 5,000 | 11.4 m | |
| INTERSTATE 5 | California | 1969 | 5,000 | 106.5 m | |
| INTERSTATE 5 | California | 1973 | 5,000 | 93.0 m | |
| INTERSTATE 5 | California | 1970 | 5,000 | 73.2 m | |
| U.S. HIGHWAY 50 | California | 1961 | 5,000 | 49.4 m | |
| US 101 I 380 EB CON RMPS | California | 1976 | 5,000 | 891.5 m | |
| KINGS CREEK | California | 1927 | 5,000 | 26.8 m | |
| ARROYO DEL HAMBRE | California | 1955 | 4,900 | 13.7 m | |
| T.I.D. MAIN CANAL | California | 1924 | 4,874 | 24.4 m | |
| MAD RIVER | California | 1965 | 4,775 | 157.9 m | |
| SAN JOSE CRK | California | 1967 | 4,705 | 39.9 m | |
| RESERVATION MAIN DRAIN | California | 1977 | 4,700 | 24.7 m | |
| STATE ROUTE 99 | California | 1962 | 4,700 | 87.5 m | |
| ORRS CREEK | California | 1972 | 4,692 | 18.9 m | |
| M.I.D. LATERAL #7 | California | 1925 | 4,684 | 10.2 m | |
| MILES CREEK | California | 1928 | 4,650 | 7.3 m | |
| UP RR BNSF RY AMTRAK 2ND | California | 1958 | 4,620 | 165.8 m | |
| WALKER SLOUGH | California | 1971 | 4,600 | 36.0 m | |
| BRANCH CANYON | California | 1943 | 4,500 | 17.1 m | |
| MORMON SLOUGH | California | 1957 | 4,500 | 24.4 m | |
| CALIFORNIA AQUEDUCT | California | 1967 | 4,403 | 47.2 m | |
| SR 99 | California | 1958 | 4,380 | 68.9 m | |
| LOMA ALTA CREEK | California | 1985 | 4,320 | 18.2 m | |
| NORTH LITTLE JOHNS CREEK | California | 1972 | 4,300 | 20.7 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.