Tuolumne County, CA

128 public highway bridges

Tuolumne County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Tuolumne County, California contains 128 public highway bridges. Roughly 34.4% are rated “Good,” 53.9% “Fair,” and 7% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

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

128
Total Bridges
34.4%
Good
53.9%
Fair
7%
Poor Condition

Condition Distribution

Good
34.4% (44)
Fair
53.9% (69)
Poor
7% (9)

All Bridges (128)

JAMESTOWN RD

Good

Over: WOODS CREEK

0.4 MI NE/O SR49 & 108, Tuolumne, CA

Built 2001 Load: 32.4 t ADT: 2,200

PASEO DE LOS PORTA

Good

Over: SULLIVAN CREEK

0.1M N OF PHOENIX LAKE RD, Tuolumne, CA

Built 1996 Load: 32.4 t ADT: 1,915

HARDIN FLAT ROAD

Good

Over: SOUTH FK TUOLUMNE RIVER

E OF YOSEMITE LAKES ROAD, Tuolumne, CA

Built 2019 Load: 32.4 t ADT: 100

BUCHANAN RD (1N01)

Good

Over: NORTH FK TUOLUMNE RIVER

FISH HATCHERY RD (1N04), Tuolumne, CA

Built 2017 Load: 32.4 t ADT: 630

BIG CREEK SHAFT RD

Good

Over: BIG CREEK

0.4 MI N OF SR 120, Tuolumne, CA

Built 2022 Load: 32.4 t ADT: 105

STATE ROUTE 120

Good

Over: HILLSIDE

10-TUO-120-R44.84, Tuolumne, CA

Built 1970 Load: 32.6 t ADT: 3,650

STATE ROUTE 120 EB

Good

Over: PRIVATE ACCESS ROAD

10-TUO-120-R5.98, Tuolumne, CA

Built 1976 Load: 35.6 t ADT: 6,100

STATE ROUTE 108

Good

Over: EAGLE CREEK

10-TUO-108-53.03, Tuolumne, CA

Built 1963 Load: 36.6 t ADT: 800

STATE ROUTE 120 WB

Good

Over: PRIVATE ACCESS ROAD

10-TUO-120-R5.98, Tuolumne, CA

Built 1976 Load: 37.3 t ADT: 6,100

WINDING ROAD

Good

Over: SF STANISLAUS RIVER

NO DATA ENTERED, Tuolumne, CA

Built 2015 Load: 37.6 t ADT: 50

STATE ROUTE 120

Good

Over: BIG CREEK

10-TUO-120-R37.78, Tuolumne, CA

Built 1977 Load: 38.9 t ADT: 3,800

WINDING ROAD

Good

Over: NIAGARA CREEK

NO DATA ENTERED, Tuolumne, CA

Built 2010 Load: 38.9 t ADT: 50

IRR BIA RTE 133

Good

Over: TURNBACK CREEK

1.48KM UP MIWU FROM INTER, Tuolumne, CA

Built 2020 Load: 42.1 t ADT: 30

STATE ROUTE 49

Good

Over: JACKASS GULCH

10-TUO-049-R2.99, Tuolumne, CA

Built 1975 Load: 45.4 t ADT: 765

OLD WARDS FERRY RD

Good

Over: SULLIVAN CREEK

0.8 MI S HWY 108, Tuolumne, CA

Built 1977 Load: 45.4 t ADT: 810

YOSEMITE RD

Good

Over: TURNBACK CREEK

0.3 MI W/O OAK ST, Tuolumne, CA

Built 1980 Load: 45.7 t ADT: 905

JACKSONVILLE RD

Good

Over: SULLIVAN CREEK

6.9 MI N/O SR 120, Tuolumne, CA

Built 1970 Load: 48.9 t ADT: 1,567

STATE ROUTE 49

Good

Over: SONORA CREEK

10-TUO-049-17.80-SRA, Tuolumne, CA

Built 1947 Load: 49.6 t ADT: 11,500

LIME KILN RD

Good

Over: SULLIVAN CREEK

0.9 MI S OF CAMPO SECO RD, Tuolumne, CA

Built 1945 Load: 71.0 t ADT: 1,800

WINDING ROAD

Poor

Over: UPPER HUNTER CREEK

NO DATA ENTERED, Tuolumne, CA

Built 1969 ADT: 50

WINDING ROAD

Poor

Over: STANISLAUS RIVER

NO DATA ENTERED, Tuolumne, CA

Built 1926 ADT: 50

WINDING ROAD

Poor

Over: BLUE CANYON CREEK

NO DATA ENTERED, Tuolumne, CA

Built 1968 ADT: 50

WINDING ROAD

Poor

Over: MILL CREEK

NO DATA ENTERED, Tuolumne, CA

Built 1969 ADT: 50

ITALIAN BAR RD

Poor

Over: ROSE CREEK

10.7 MI NE BIG HILL ROAD, Tuolumne, CA

Built 1925 Load: 15.6 t ADT: 20

STATE ROUTE 120

Poor

Over: CHINESE CREEK

10-TUO-120-14.73, Tuolumne, CA

Built 1914 Load: 16.2 t ADT: 2,800

SR 108

Poor

Over: MONO WAY

10-TUO-108-R2.20, Tuolumne, CA

Built 2004 Load: 32.4 t ADT: 17,450

PARROTTS FERRY RD

Poor

Over: NEW MELONES RESERVOIR

4 MILES SOUTH OF ROUTE 4, Tuolumne, CA

Built 1978 Load: 32.4 t ADT: 2,500

MONO WAY

Poor

Over: SULLIVAN CREEK

0.5 MI E OF HWY 108, Tuolumne, CA

Built 1991 Load: 32.4 t ADT: 25,060

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

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.