Bridge conditions in Santa Barbara County, California
421 inventoried bridges · 16 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 421 bridges in Santa Barbara County: 226 rated good, 179 fair, and 16 poor.
- 16 of the 421 bridges in Santa Barbara County, California, are rated in poor condition (3.8%) in the 2025 National Bridge Inventory, as of .
- 226 bridges (53.7%) are rated good and 179 (42.5%) fair.
- The median Santa Barbara County bridge was built in 1969.
- The busiest poor-rated bridge is US Highway 101 NB over Maria Ygnacio Creek (built 1961), carrying about 60,500 vehicles a day.
Good 53.7% · Fair 42.5% · Poor 3.8% of 421 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US Highway 101 NB over Maria Ygnacio Creek | 1961 | 60,500 | Poor |
| US Highway 101 SB over San Jose Creek | 1946 | 60,500 | Poor |
| US Highway 101 SB over Refugio Road | 1974 | 16,000 | Poor |
| US Highway 101 NB over Refugio Road | 1974 | 16,000 | Poor |
| Clark Ave over US Highway 101 | 1966 | 15,000 | Poor |
| State Route 217 over San Jose Creek | 1963 | 12,500 | Poor |
| De La Vina St over Mission Creek | 1916 | 11,250 | Poor |
| US Highway 101 SB over Nojoqui Creek | 1956 | 11,000 | Poor |
| US Highway 101 NB over Nojoqui Creek | 1956 | 11,000 | Poor |
| Union Vally Pkway over US Highway 101 | 2013 | 10,020 | Poor |
| State Street over Mission Creek | 1991 | 7,130 | Poor |
| State Route 166 over Branch Canyon | 1943 | 4,500 | Poor |
| Ave of the Flags over Santa Ynez River | 1949 | 3,000 | Poor |
| Malibu Dr over Franklin Creek | 1976 | 2,443 | Poor |
| Alisal Road over Santa Ynez River | 1971 | 1,712 | Poor |
| Islay St over Mission Creek | 1982 | 700 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Hwy 101 NB Rt Lane over Mission Creek | 1963 | 120,000 | Good |
| La Cumbre Road over US Highway 101 | 1997 | 110,900 | Good |
| U.S. Highway 101 over Quarantina Street | 1990 | 109,000 | Good |
| U.S. Highway 101 over Calle Cesar Chavez | 1990 | 109,000 | Good |
| U.S. Highway 101 over Chapala St Equalizer | 1992 | 109,000 | Good |
| US Highway 101 over Sycamore Creek | 2011 | 109,000 | Fair |
| US Highway 101 over Milpas Street | 2012 | 109,000 | Fair |
| US Highway 101 over Cacique Street | 2012 | 109,000 | Fair |
| US Highway 101 over San Ysidro Creek | 1915 | 76,000 | Fair |
| US Highway 101 over Romero Creek | 1915 | 76,000 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of California: California bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.