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Bridge conditions in Madera County, California

250 inventoried bridges · 24 rated poor · 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

24 of the 250 bridges the federal inventory lists in Madera County are rated poor; the rest split 95 good and 131 fair.

24 of the 250 bridges in Madera County, California, are rated in poor condition (9.6%) in the 2025 National Bridge Inventory, as of August 20, 2026.
95 bridges (38.0%) are rated good and 131 (52.4%) fair.
The median Madera County bridge was built in 1971.
The busiest poor-rated bridge is State Route 99 SB over Cottonwood Creek (built 1967), carrying about 32,500 vehicles a day.

Good 38.0% · Fair 52.4% · Poor 9.6% of 250 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
State Route 99 SB over Cottonwood Creek	1967	32,500	Poor
S Gateway Dr over SR 99	1958	4,380	Poor
CR 426 over Fresno River	1988	3,000	Poor
School Rd 427 over Oak Creek	1975	2,066	Poor
N Shore Dr Rd 432 over North Fork Willow Creek	1953	2,000	Poor
Chowchilla Blvd over Berenda Slough	1931	1,446	Poor
Rd 19 & Ave 18.5 over Berenda Creek	1965	1,000	Poor
Ave 15 1/2 over Mid Canal (ave 15 1/2)	1953	737	Poor
Rd 600 over Crooks Creek	1965	560	Poor
Bridge Road over Nelder Creek	1966	367	Poor
Road 13 over Ash Slough	1965	316	Poor
Avenue 18.5 over Eastside Bypass Channel	1965	300	Poor
Santa Fe Blvd over Berenda Slough	1968	259	Poor
Santa Fe Blvd over Ash Slough	1956	259	Poor
Clark Street over M.i.d. Canal	1955	200	Poor
Eastside Dr over Ridge Ditch	1972	100	Poor
C.R. 210 over Ryan Creek	1950	70	Poor
Rd 28 1/2 over Dry Creek	1948	68	Poor
Road 229A over North Fork Willow Creek	1950	60	Poor
Winding Road over Beasore Creek	1970	50	Poor
Winding Road over Northfork Willow Creek	1928	50	Poor
Winding Road over Johnson Creek	1973	50	Poor
C.R. 810 over E Fk Chowchilla River	1965	25	Poor
Hartman Cutoff over Willow Creek	1973	22	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
State Route 99 over Fresno River	1989	68,000	Good
State Route 99 over Little Dry Creek	1912	67,000	Fair
State Route 99 over SR 99	1973	65,000	Good
State Route 99 over San Joaquin River	2015	64,000	Fair
State Route 99 over Berenda Creek	1949	56,000	Fair
State Route 99 over Chowchilla River	1995	37,500	Fair
State Route 41 over Fresno River	1971	33,500	Good
State Route 99 SB over Cottonwood Creek	1967	32,500	Poor
State Route 99 NB over Cottonwood Creek	1967	32,500	Fair
State Route 99 SB over Dry Creek	1974	28,000	Good

Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.

Every bridge in Madera County → - all 250, busiest first, each with its own condition record.

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.