County profile · official public datasets

Fresno County, CA

916 public highway bridges tracked in the FHWA National Bridge Inventory: 38.9% rated Good, 57.3% Fair, 3.8% Poor.

916
Public bridges
38.9%
Good condition
3.8%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Fresno County posts a top-quartile lowest Poor-condition share among rated counties in the state across large county bridge inventory.

Top 16%
lowest Poor share in state
3.8%
Poor-condition share
916
public highway bridges
1969
avg year built

Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.

Fresno County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Fresno County ranks #9 of 58 California counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.8%). Fresno County, California contains 916 public highway bridges. Roughly 38.9% are rated “Good,” 57.3% “Fair,” and 3.8% “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.

Total bridges

916

Public highway bridges in Fresno County

Good condition

38.9%

356 of 916 rated 7-9

Fair condition

57.3%

525 of 916 rated 5-6

Poor condition

3.8%

35 of 916 rated 4 or below

In-state Poor-share rank

#9 of 58

Among California counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 916 NBI-tracked bridges by lowest applicable component rating.

Good
38.9% (356)
Fair
57.3% (525)
Poor
3.8% (35)

Fresno County's Poor-condition bridges carry 268,953 vehicle crossings a day

That is 2.7% of the county's reported daily bridge traffic on 3.8% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 7,684 crossings a day against 15,630 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.

Computed over the 916 of 916 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

60% of Fresno County's bridges have passed the 50-year mark

550 of the 916 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 38.9% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.

Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.

One structure carries 28.3% of the county's Poor-condition bridge traffic

STATE ROUTE 41 over O STREET, built 1974, carries 76,000 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 35-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 268,953 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Fresno County's bridges were built

916 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1960s, when 165 of the county's bridges still in the inventory were built, which is 18% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1969) matches the California average (1970).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

How Fresno County compares with California's closest counties by inventory size

The 5 California counties nearest Fresno County in number of bridges, with their condition splits. Its 3.8% Poor share is the 4th-lowest of these 6. Its average build year of 1969 against a peer-group mean of 1974 is 5 years older.

Showing the 5 closest of 57 California counties eligible for comparison.

Bridge inventory size and condition shares for Fresno County and the 5 California counties closest to it in inventory size
County Bridges Poor
Orange County 1,164 3%
Riverside County 1,117 2.4%
Santa Clara County 964 5.6%
Fresno County (this page) 916 3.8%
Sacramento County 740 3.4%
Kern County 668 6.6%

Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Fresno County's. Source: FHWA National Bridge Inventory, 2024 release.

Nationwide counties with similar inventory size or average build year

Two NBI-derived peer sets for Fresno County, both outside California so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside CA (916 bridges here).

Similar average build year

Nearest mean year-built outside CA (1969 here).

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

Fair-condition bridges (525)

WINDING ROAD

Fair

Over: WHISKEY CREEK

08S70-1.2, Fresno, CA

Built 1952 ADT: 50

WINDING ROAD

Fair

Over: EDISON SPILLWAY

04S01-27.9, Fresno, CA

Built 1954 ADT: 50

WINDING ROAD

Fair

Over: WESTFALL CREEK

NO DATA ENTERED, Fresno, CA

Built 1977 ADT: 50

WINDING ROAD

Fair

Over: TRIB. SAN JOAQUIN RIVER

08S03-2.74, Fresno, CA

Built 1968 ADT: 50

WINDING ROAD

Fair

Over: JOSE CREEK

09S07-1.4, Fresno, CA

Built 1954 ADT: 50

NO DATA ENTERED

Fair

Over: ROCK CREEK

NO DATA ENTERED, Fresno, CA

Built 1969 ADT: 50

WINDING ROAD

Fair

Over: COW CREEK

NO DATA ENTERED, Fresno, CA

Built 1982 ADT: 50

WINDING ROAD

Fair

Over: NO DATA ENTERED

NO DATA ENTERED, Fresno, CA

Built 1951 ADT: 50

WINDING ROAD

Fair

Over: SAN JOAQUIN RIVER

NO DATA ENTERED, Fresno, CA

Built 1984 ADT: 50

WINDING ROAD

Fair

Over: BEAR CREEK

NO DATA ENTERED, Fresno, CA

Built 1992 ADT: 50

WINDING ROAD

Fair

Over: DEER CREEK

NO DATA ENTERED, Fresno, CA

Built 1954 ADT: 50

WINDING ROAD

Fair

Over: BEAR CREEK

NO DATA ENTERED, Fresno, CA

Built 1971 ADT: 50

WINDING DIRT ROAD

Fair

Over: RANCHERIA CREEK

NO DATA ENTERED, Fresno, CA

Built 1969 ADT: 50

DIRT ROAD

Fair

Over: BIG CREEK

NO DATA ENTERED, Fresno, CA

Built 1936 ADT: 50

WINDING ROAD

Fair

Over: SOUTH FORK SAN JOAQUIN

05S01-31.7, Fresno, CA

Built 1968 ADT: 50

WINDING ROAD

Fair

Over: KAISER CREEK

06S02-21.4, Fresno, CA

Built 1960 ADT: 50

WINDING ROAD

Fair

Over: N.FORK KINGS RIVER

11S12-23.6, Fresno, CA

Built 1956 ADT: 120

WINDING ROAD

Fair

Over: BIG CREEK

10S18-6.8, Fresno, CA

Built 1955 ADT: 50

WINDING ROAD

Fair

Over: UPPER CHINQUAPIN

07S01-12.1, Fresno, CA

Built 1948 ADT: 50

WINDING ROAD

Fair

Over: DINKEY CREEK

NO DATA ENTERED, Fresno, CA

Built 1971 ADT: 50

NO DATA ENTERED

Fair

Over: KAISER CREEK

NO DATA ENTERED, Fresno, CA

Built 1989 ADT: 50

E CALIFORNIA AVE

Fair

Over: GOLDEN STATE BLVD

200 FT EAST OF ST RTE 41, Fresno, CA

Built 1948 Load: 4.5 t ADT: 2,137

E SHAW AVE

Fair

Over: FANCHER CREEK

1.1 MI EAST OF ACADEMY AV, Fresno, CA

Built 1947 Load: 5.2 t ADT: 900

TRIMMER SPRINGS RD

Fair

Over: FRIANT-KERN CANAL

1.5 MI EAST OF BELMONT AV, Fresno, CA

Built 1946 Load: 6.5 t ADT: 1,800

N ACADEMY AVE

Fair

Over: FRIANT-KERN CANAL

1MI NORTH OF HERNDON AVE, Fresno, CA

Built 1946 Load: 7.5 t ADT: 1,200

WATTS VALLEY ROAD

Fair

Over: FRIANT-KERN CANAL

1.1 MI E OF RIVERBEND, Fresno, CA

Built 1947 Load: 7.8 t ADT: 500

E CLAYTON AVE

Fair

Over: TRAVERS CREEK

0.29 MI. EAST OF ALTA AVE, Fresno, CA

Built 1941 Load: 7.8 t ADT: 200

S CLOVIS AVE

Fair

Over: LIBERTY DITCH

1.0 MI SOUTH OF DAVIS AVE, Fresno, CA

Built 1942 Load: 9.7 t ADT: 300

STATE ROUTE 168

Fair

Over: TAMARACK CREEK

06-FRE-168-58.67, Fresno, CA

Built 1955 Load: 10.4 t ADT: 1,300

WINDING ROAD

Fair

Over: WEST KAISER CREEK

07S05-15.4, Fresno, CA

Built 1961 Load: 10.7 t ADT: 50

SR 180 (KINGS CYN)

Fair

Over: FRIANT-KERN CANAL

06-FRE-180-79.30, Fresno, CA

Built 1947 Load: 11.0 t ADT: 4,375

N DEL REY AVE

Fair

Over: FRESNO CANAL

0.5 MI SOUTH OF MCKINLEY, Fresno, CA

Built 1939 Load: 11.0 t ADT: 700

N VIAU AVE

Fair

Over: FRESNO CANAL

0.3 MI NORTH OF BELMONT, Fresno, CA

Built 1925 Load: 12.3 t ADT: 250

W MT WHITNEY AVE

Fair

Over: FRESNO SLOUGH

0.8 MI E OF DICKENSON AVE, Fresno, CA

Built 1955 Load: 13.3 t ADT: 2,700

S HILLS VALLEY RD

Fair

Over: FRIANT-KERN CANAL

0.2 MI SOUTH OF PARK BLVD, Fresno, CA

Built 1947 Load: 13.6 t ADT: 5,835

N FULTON AVE

Fair

Over: DRY CREEK CANAL

AT DUDLEY AVE, Fresno, CA

Built 1911 Load: 13.9 t ADT: 7,818

PORTER AVE

Fair

Over: WAHTOKE CREEK

1.8 MILES NORTH OF SR 180, Fresno, CA

Built 1949 Load: 13.9 t ADT: 200

S TIBURCIO AVE

Fair

Over: GRANT CANAL

0.18 MI S/O MT WHITNEY AV, Fresno, CA

Built 1937 Load: 14.3 t ADT: 210

PINE FLAT DAM

Fair

Over: KINGS RIVER D/S OF DAM

27 MI EAST OF FRESNO, Fresno, CA

Built 1956 Load: 14.3 t ADT: 175

N. BLACKSTONE AVE

Fair

Over: DRY CREEK CANAL

NEAR E. OLIVE AVE, Fresno, CA

Built 1941 Load: 14.9 t ADT: 4,000

S COVE AVE

Fair

Over: FRIANT-KERN CANAL

0.85 MI N/O AMERICAN AVE, Fresno, CA

Built 1947 Load: 14.9 t ADT: 1,000

N RIVERBEND AVE

Fair

Over: ENTERPRISE CANAL

1 MI NORTH OF BELMONT AVE, Fresno, CA

Built 1952 Load: 15.2 t ADT: 850

LOS GATOS ROAD

Fair

Over: LOS GATOS CREEK

14.9 MI W OF DERRICK BL, Fresno, CA

Built 1948 Load: 15.2 t ADT: 100

S WALNUT AVE

Fair

Over: LIBERTY DITCH

0.2 MI N OF ELKHORN AVE, Fresno, CA

Built 1950 Load: 15.6 t ADT: 125

E. OLIVE AVE

Fair

Over: DRY CREEK CANAL

NEAR N. BLACKSTONE AVE, Fresno, CA

Built 1941 Load: 15.6 t ADT: 5,000

WINDING ROAD

Fair

Over: NUTMEG CREEK

10S69-12.4, Fresno, CA

Built 1967 Load: 15.6 t ADT: 50

STATE ROUTE 168

Fair

Over: RANCHERIA CREEK

06-FRE-168-65.74, Fresno, CA

Built 1955 Load: 15.9 t ADT: 1,300

E MANNING AVE

Fair

Over: FOWLER SWITCH CANAL

1.0 MI W OF MCCALL AVE, Fresno, CA

Built 1938 Load: 16.2 t ADT: 4,200

S GOLDEN STATE BL

Fair

Over: NORTH AVE & BNSF RY

0.25 MI E OF S CEDAR AVE, Fresno, CA

Built 1936 Load: 16.2 t ADT: 5,410

S ELM AVE

Fair

Over: MURPHY SLOUGH

2 MI SOUTH OF ELKHORN AVE, Fresno, CA

Built 1922 Load: 16.2 t ADT: 340
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridges 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. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.