Merced County, CA

532 public highway bridges

Merced County Bridge Snapshot

Merced County, California contains 532 public highway bridges in the FHWA National Bridge Inventory. Roughly 29.1% are rated “Good,” 52.4% “Fair,” 6.2% “Poor,” and 6.2% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in CA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

532

Total Bridges

29.1%

Good

6.2%

Poor

6.2%

Structurally Deficient

Condition Distribution

Good

29.1% (155)

Fair

52.4% (279)

Poor

6.2% (33)

SD

6.2% (33)

All Bridges (532)

Sort:

MISSION AVENUE

Over: OLD ST RTE 99 & UP RR

0.3 MI NW/O S COFFEE ST, Merced, CA

Built 2006 Load: 32.4 t ADT: 800

BUENA VISTA DRIVE

Over: FAHRENS CREEK

0.4 MI WEST OF R STREET, Merced, CA

Built 1991 Load: 32.4 t ADT: 5,812

INTERSTATE 5 SB

Over: LAGUNA SECA CREEK ROAD

10-MER-005-2.86, Merced, CA

Built 1971 Load: 33.0 t ADT: 17,500

INTERSTATE 5 NB

Over: LAGUNA SECA CREEK ROAD

10-MER-005-2.86, Merced, CA

Built 1971 Load: 33.0 t ADT: 19,000

WEST 'I' STREET

Over: CCID MAIN CANAL

JUST S OF SR 152, Merced, CA

Built 1963 Load: 33.0 t ADT: 4,320

STATE ROUTE 33

Over: ARROYO CANAL

10-MER-033-4.64, Merced, CA

Built 1918 Load: 33.7 t ADT: 5,200

BELLEVUE ROAD

Over: LIVINGSTON CANAL

0.36 MI E SHAFFER ROAD, Merced, CA

Built 1940 Load: 33.7 t ADT: 8,090

BELLEVUE RD

Over: FARAHNS CREEK

0.7 MI W G ST, Merced, CA

Built 1966 Load: 34.0 t ADT: 1,270

KEYES ROAD

Over: DRY CREEK

1.0 MI W COX FERRY ROAD, Merced, CA

Built 1964 Load: 34.0 t ADT: 354

STATE ROUTE 99 SB

Over: BLACK RASCAL CANAL

10-MER-099-17.30, Merced, CA

Built 1964 Load: 34.7 t ADT: 25,500

SOUTHERN PACIFC AV

Over: BLACK RASCAL CANAL

0.4 MI N/W 16TH ST END, Merced, CA

Built 1964 Load: 35.0 t ADT: 50

INTERSTATE 5 SB

Over: CALIFORNIA AQUEDUCT

10-MER-005-18.46, Merced, CA

Built 1966 Load: 36.0 t ADT: 15,500

ASHBY ROAD

Over: BLACK RASCAL CREEK

0.3 MI S BEACHWOOD RD, Merced, CA

Built 1962 Load: 36.9 t ADT: 3,063

STATE ROUTE 140

Over: CCID MAIN CANAL

10-MER-140-4.47, Merced, CA

Built 1954 Load: 37.3 t ADT: 5,650

STATE ROUTE 165

Over: SALT SLOUGH

10-MER-165-22.34, Merced, CA

Built 1959 Load: 37.3 t ADT: 5,100

ROSE GARDEN ROAD

Over: GARZAS CREEK

0.2 MI E ORCHARD ROAD, Merced, CA

Built 1988 Load: 37.3 t ADT: 20

SANTA FE GRADE

Over: LOS BANOS CREEK

1.2 MI N GUN CLUB ROAD, Merced, CA

Built 1974 Load: 37.6 t ADT: 186

INTERSTATE 5 NB

Over: CALIFORNIA AQUEDUCT

10-MER-005-18.46, Merced, CA

Built 1966 Load: 37.9 t ADT: 17,300

SANTA FE DRIVE

Over: MERCED RIVER

0.5 MI S EL CAPITAN WAY, Merced, CA

Built 1970 Load: 38.2 t ADT: 7,297

STATE ROUTE 140

Over: EAST SIDE CANAL

10-MER-140-18.52, Merced, CA

Built 1955 Load: 39.2 t ADT: 3,325

STATE ROUTE 152 EB

Over: EASTSIDE BYPASS CHANNEL

10-MER-152-R39.29, Merced, CA

Built 1969 Load: 39.5 t ADT: 8,425

WINTON WAY

Over: LIVINGSTON CANAL

1.67 MI N OF SR 99, Merced, CA

Built 1950 Load: 39.9 t ADT: 14,695

STATE ROUTE 152 WB

Over: CALIFORNIA AQUEDUCT

10-MER-152-14.17, Merced, CA

Built 1965 Load: 41.1 t ADT: 12,425

STATE ROUTE 152 EB

Over: CALIFORNIA AQUEDUCT

10-MER-152-14.17, Merced, CA

Built 1965 Load: 41.1 t ADT: 12,425

PIONEER ROAD

Over: CCID MAIN CANAL

0.25 MI WEST OF SR 165, Merced, CA

Built 1973 Load: 42.1 t ADT: 4,206

INTERSTATE 5 SB

Over: ORTIGALITA CREEK

10-MER-005-8.89, Merced, CA

Built 1971 Load: 43.7 t ADT: 15,500

INTERSTATE 5 NB

Over: ORTIGALITA CREEK

10-MER-005-8.89, Merced, CA

Built 1971 Load: 43.7 t ADT: 20,750

COTTON GIN ROAD

Over: OUTSIDE CANAL

1.6 MI E OF SR 165, Merced, CA

Built 1975 Load: 45.4 t ADT: 130

LONE TREE ROAD

Over: DEADMAN CREEK

0.7 MI N SANDY MUSH ROAD, Merced, CA

Built 1965 Load: 46.3 t ADT: 175

ORTIGALITA ROAD

Over: OUTSIDE CANAL

0.9 MI S/O PIONEER RD, Merced, CA

Built 1966 Load: 47.6 t ADT: 1,150

TURNER ISLAND RD

Over: SAN JOAQUIN RIVER

3.3 MI N HENRY MILLER AVE, Merced, CA

Built 1974 Load: 48.9 t ADT: 334

CHINA CAMP ROAD

Over: LOS BANOS CREEK

0.55 MI WEST OF MONROE AV, Merced, CA

Built 1977 Load: 49.6 t ADT: 50

AVENUE ONE

Over: CANAL CREEK

0.4 MI E BUHACH ROAD, Merced, CA

Built 1975 Load: 50.5 t ADT: 1,500

TURNER ISLAND RD

Over: SALT SLOUGH

3.1 MI N HENRY MILLER AVE, Merced, CA

Built 1975 Load: 51.2 t ADT: 500

VOLTA ROAD

Over: OUTSIDE CANAL

0.8 MI S HWY 152, Merced, CA

Built 1960 Load: 52.2 t ADT: 1,280

WALNUT AVENUE

Over: LIVINGSTON CANAL

0.57 MI E CENTRAL AVE, Merced, CA

Built 1978 Load: 52.5 t ADT: 3,931

GURR ROAD

Over: BEAR CREEK

0.04 MI N WARDROBE AVENUE, Merced, CA

Built 1985 Load: 52.8 t ADT: 400

GURR ROAD

Over: OWENS CREEK

3.4 MI N SANDY MUSH RD, Merced, CA

Built 1975 Load: 53.5 t ADT: 500

GURR ROAD

Over: DEADMAN CREEK

0.6 MI N SANDY MUSH RD, Merced, CA

Built 1985 Load: 54.1 t ADT: 600

SNELLING ROAD

Over: MAIN CANAL

2.8 MI S/O SR 59, Merced, CA

Built 1981 Load: 58.0 t ADT: 1,451

STATE ROUTE 165

Over: CALIFORNIA AQUEDUCT

10-MER-165-1.08, Merced, CA

Built 1966 Load: 58.3 t ADT: 1,800

STATE ROUTE 33

Over: GARZAS CREEK BYPASS

10-MER-033-24.54, Merced, CA

Built 1920 Load: 59.6 t ADT: 7,475

MCCABE ROAD

Over: DELTA-MENDOTA CANAL

1.0 MI WEST OF I-5, Merced, CA

Built 1949 Load: 80.7 t ADT: 453

CANYON ROAD

Over: LOS BANOS CREEK

1.4 MI S SUNSET AVE, Merced, CA

Built 1970 Load: 99.9 t ADT: 830

RAYNOR RANCH ROAD

Over: DUTCHMAN CREEK

2.0 MI E BAXTER ROAD, Merced, CA

Built 1960 Load: 10.0 t ADT: 16

ALVES ROAD

Over: ALVES DRAIN

0.1 MI S/O EL CAPITAN WY, Merced, CA

Built 1925 Load: 10.4 t ADT: 61

LA GRANGE ROAD

Over: SOUTH FORK DRY CREEK

3.5 MI N MERCED FALLS RD, Merced, CA

Built 1921 Load: 15.6 t ADT: 1,912

S BEAR CREEK DRIVE

Over: LE GRAND CANAL

0.2 MI E PLAINSBURG ROAD, Merced, CA

Built 1925 Load: 16.2 t ADT: 218

CUNNINGHAM ROAD

Over: MARIPOSA CREEK

3.3 MI S CHILDS AVE, Merced, CA

Built 1920 Load: 16.5 t ADT: 441

HEALY ROAD

Over: DUCK SLOUGH

1.2 MI N MCNAMARA RD, Merced, CA

Built 1935 Load: 16.5 t ADT: 719

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026