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:

HILLS FERRY ROAD

Over: SAN JOAQUIN RIVER

STANISLAUS COUNTY LINE, Merced, CA

Built 1961 Load: 22.0 t ADT: 4,660

LAKE RD

Over: FAIRFIELD CANAL

0.5 MI N BELLEVUE RD, Merced, CA

Built 1955 Load: 22.0 t ADT: 231

FRESNO ROAD

Over: MARIPOSA CREEK

0.2 MI N HAINLINE AVE, Merced, CA

Built 1930 Load: 22.0 t ADT: 55

BONNER ROAD

Over: BEAR CREEK

0.8 MI N BEAR CREEK ROAD, Merced, CA

Built 1960 Load: 22.7 t ADT: 38

ROBINSON ROAD

Over: MAIN CANAL

1.8 MI E SNELLING ROAD, Merced, CA

Built 1950 Load: 22.7 t ADT: 45

KIBBY ROAD

Over: BEAR CREEK

0.4 MI S OF E. OLIVE AVE, Merced, CA

Built 1972 Load: 23.0 t ADT: 1,442

ARBOLEDA ROAD

Over: DUCK SLOUGH

0.1 MI S MCHENRY RD., Merced, CA

Built 2007 Load: 23.0 t ADT: 1,288

DWIGHT WAY

Over: LIVINGSTON CANAL

0.2 MI N OLIVE AVE, Merced, CA

Built 1960 Load: 23.3 t ADT: 236

EUCALYPTUS AVENUE

Over: LIVINGSTON CANAL

0.2 MI W SULTANA DR, Merced, CA

Built 1940 Load: 23.3 t ADT: 448

MILES CREEK ROAD

Over: MILES CREEK

0.2 MI N VASSER AVENUE, Merced, CA

Built 1960 Load: 23.3 t ADT: 49

MERCED AVENUE

Over: HIGH LINE CANAL

0.5 MI SOUTH BLOSS AVE, Merced, CA

Built 1955 Load: 23.3 t ADT: 50

STATE ROUTE 99 NB

Over: BEAR CREEK

10-MER-099-16.38-MER, Merced, CA

Built 1962 Load: 23.7 t ADT: 25,500

STATE ROUTE 59 NB

Over: BEAR CREEK

10-MER-059-15.23-MER, Merced, CA

Built 1940 Load: 24.0 t ADT: 14,000

STATE ROUTE 152 WB

Over: DELTA-MENDOTA CANAL

10-MER-152-15.09, Merced, CA

Built 1955 Load: 24.0 t ADT: 12,425

STATE ROUTE 152 EB

Over: DELTA-MENDOTA CANAL

10-MER-152-15.09, Merced, CA

Built 1950 Load: 24.0 t ADT: 12,425

STATE ROUTE 140

Over: DELTA-MENDOTA CANAL

10-MER-140-0.58, Merced, CA

Built 1951 Load: 24.0 t ADT: 1,175

BAXTER ROAD

Over: DUTCHMAN CREEK

1.2 MI N BUCHANAN HLW RD, Merced, CA

Built 1965 Load: 24.0 t ADT: 50

WOLFSEN ROAD

Over: SALT SLOUGH

0.8 MI N/E OF SR 165, Merced, CA

Built 1949 Load: 24.0 t ADT: 105

STATE ROUTE 33

Over: OUTSIDE CANAL

10-MER-033-18.41, Merced, CA

Built 1936 Load: 24.3 t ADT: 7,475

STATE ROUTE 140

Over: EL CAPITAN CANAL

10-MER-140-34.51, Merced, CA

Built 1920 Load: 24.3 t ADT: 6,500

AZUSA ROAD

Over: SAN JUAN CANAL

0.5 MI E OF SR 33, Merced, CA

Built 1922 Load: 24.3 t ADT: 500

SNELLING ROAD

Over: SOUTH FORK CANAL CREEK

3.3 MI S/O SR 59, Merced, CA

Built 1966 Load: 24.3 t ADT: 1,500

HORNITOS ROAD

Over: F. P. CREEK

2.3 MI SE MERCED FALLS RD, Merced, CA

Built 1971 Load: 24.3 t ADT: 300

INGOMAR GRADE ROAD

Over: SAN LUIS WASTEWAY

0.5 MI NW HENRY MILLER AV, Merced, CA

Built 1950 Load: 24.3 t ADT: 6,331

OSLO ROAD

Over: LATERAL #6

0.5 MI N AUGUST AVENUE, Merced, CA

Built 1950 Load: 24.3 t ADT: 40

YAMATO WAY

Over: LIVINGSTON CANAL

AT EUCALYPTUS AVE, Merced, CA

Built 1960 Load: 24.3 t ADT: 40

CENTRAL AVENUE

Over: LIVINGSTON CANAL

AT OLIVE AVE, Merced, CA

Built 1950 Load: 24.3 t ADT: 620

FOX ROAD

Over: CANAL CREEK

20 FT. N BELLEVUE ROAD, Merced, CA

Built 1960 Load: 24.3 t ADT: 145

REILLY ROAD

Over: MILES CREEK

0.7 MI E OF SR 59, Merced, CA

Built 1955 Load: 24.3 t ADT: 150

EAST YOSEMITE AVE

Over: FAIRFIELD CANAL

0.9 MI W ARBOLEDA DR, Merced, CA

Built 1950 Load: 24.3 t ADT: 2,569

BUTTS ROAD

Over: DELTA-MENDOTA CANAL

0.7 MI W WHITWORTH ROAD, Merced, CA

Built 1950 Load: 24.3 t ADT: 10

WALTZ ROAD

Over: BEAR CREEK

1.2 MI NE CUNNINGHAM ROAD, Merced, CA

Built 1965 Load: 24.3 t ADT: 38

TYLER ROAD

Over: MILES CREEK

0.38 MI NORTH REILLY ROAD, Merced, CA

Built 1962 Load: 24.3 t ADT: 50

INDIANA AVENUE

Over: ARROYO CANAL

2.0 MI S OF SR 152, Merced, CA

Built 1958 Load: 24.3 t ADT: 1,095

INDIANA AVENUE

Over: POSO SLOUGH

2.8 MI SOUTH OF SR 152, Merced, CA

Built 1964 Load: 24.3 t ADT: 1,273

PALM AVENUE

Over: SAN JUAN CANAL

0.5 MI S OF SR 152, Merced, CA

Built 1959 Load: 24.3 t ADT: 1,610

DENTON ROAD

Over: SAN JUAN CANAL

0.1 MI W OF PALM AVE, Merced, CA

Built 1959 Load: 24.3 t ADT: 400

HEALY ROAD

Over: DUTCHMAN CREEK

0.1 MI N SANDY MUSH ROAD, Merced, CA

Built 1972 Load: 24.3 t ADT: 400

SANDY MUSH ROAD

Over: DUTCHMAN CREEK

4.2 MI W OF SR 99, Merced, CA

Built 1972 Load: 24.3 t ADT: 400

KAHLON ROAD

Over: MARIPOSA CREEK

2.4 MI SE OF E MISSION RD, Merced, CA

Built 1938 Load: 24.3 t ADT: 384

OLD STATE ROUTE 99

Over: FARMDALE SLOUGH

0.2 MI SE/O E MISSION AV, Merced, CA

Built 1938 Load: 24.3 t ADT: 270

OLD STATE ROUTE 99

Over: NORTH FARMDALE SLOUGH

0.2 MI NW/O E MISSION AV, Merced, CA

Built 1938 Load: 24.3 t ADT: 270

STATE ROUTE 152

Over: CCID MAIN CANAL

10-MER-152-19.52-LBNS, Merced, CA

Built 1923 Load: 24.6 t ADT: 28,000

INTERSTATE 5 SB

Over: SAN LUIS WASTEWAY

10-MER-005-21.42, Merced, CA

Built 1966 Load: 24.6 t ADT: 15,500

INTERSTATE 5 NB

Over: SAN LUIS WASTEWAY

10-MER-005-21.42, Merced, CA

Built 1966 Load: 24.6 t ADT: 17,300

WHEALAN ROAD

Over: MILES CREEK

0.3 MI N MISSION AVE, Merced, CA

Built 1968 Load: 24.6 t ADT: 218

OAKDALE ROAD

Over: CANAL CREEK

0.9 MI E AMSTERDAM RD, Merced, CA

Built 1940 Load: 24.9 t ADT: 477

OLIVE AVE

Over: FAIRFIELD CANAL

1.0 MI W ARBOLEDA DR, Merced, CA

Built 1974 Load: 24.9 t ADT: 1,945

COTTONWOOD ROAD

Over: CCID MAIN CANAL

0.5 MI E OF SR 33, Merced, CA

Built 1926 Load: 24.9 t ADT: 340

CUNNINGHAM RD

Over: MILES CREEK

2.2 MI N CHILDS AVE, Merced, CA

Built 1983 Load: 24.9 t ADT: 34

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