County profile · official public datasets

Sacramento County, CA

740 public highway bridges tracked in the FHWA National Bridge Inventory: 50.9% rated Good, 45.7% Fair, 3.4% Poor.

740
Public bridges: 50.9%
Good condition: 3.4%
Poor condition

The verdict

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

Sacramento County posts a top-10% lowest Poor-condition share among rated counties in the state across large county bridge inventory.

Top 10%
lowest Poor share in state: 3.4%
Poor-condition share: 740
public highway bridges: 1973
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.

Sacramento County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Sacramento County ranks #6 of 58 California counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.4%). Sacramento County, California contains 740 public highway bridges. Roughly 50.9% are rated “Good,” 45.7% “Fair,” and 3.4% “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

740

Public highway bridges in Sacramento County

Good condition

50.9%

377 of 740 rated 7-9

Fair condition

45.7%

338 of 740 rated 5-6

Poor condition

3.4%

25 of 740 rated 4 or below

In-state Poor-share rank

#6 of 58

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

Condition distribution

Share of 740 NBI-tracked bridges by lowest applicable component rating.

Good

50.9% (377)

Fair

45.7% (338)

Poor

3.4% (25)

Sacramento County's Poor-condition bridges carry 335,201 vehicle crossings a day

That is 1.6% of the county's reported daily bridge traffic on 3.4% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 13,408 crossings a day against 25,100 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 740 of 740 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

61.9% of Sacramento County's bridges have passed the 50-year mark

458 of the 740 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 50.9% 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 17.3% of the county's Poor-condition bridge traffic

STATE ROUTE 99 over LOG CABIN CREEK, built 1958, carries 58,000 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 25-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 335,201 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1900s

1
1910s

9
1920s

23
1930s

21
1940s

30
1950s

67
1960s

171
1970s

179
1980s

86
1990s

57
2000s

53
2010s

35
2020s

8

What this shows Construction peaked in the 1970s, when 179 of the county's bridges still in the inventory were built, which is 24.2% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year (1973) matches the California average (1970).

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

The 5 California counties nearest Sacramento County in number of bridges, with their condition splits. Its 3.4% Poor share is the 1st-lowest of these 6. Its average build year of 1973 against a peer-group mean of 1971 is in line with the group.

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

Bridge inventory size and condition shares for Sacramento County and the 5 California counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Sacramento County (this page)	740	50.9%	45.7%	3.4%	1973
Kern County	668	50.1%	43.3%	6.6%	1972
Alameda County	658	35.3%	55.2%	9.6%	1973
San Joaquin County	644	33.7%	57.1%	9.2%	1968
Contra Costa County	618	42.6%	46.9%	10.5%	1977
Sonoma County	609	24.1%	69%	6.9%	1967

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 Sacramento 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 Sacramento County, both outside California so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside CA (740 bridges here).

Guilford County, NC · 736 bridges
Mecklenburg County, NC · 746 bridges
Fairfax County, VA · 751 bridges
Champaign County, IL · 727 bridges

Similar average build year

Nearest mean year-built outside CA (1973 here).

Jefferson County, AL · avg 1973 · 1,068 bridges
Erie County, NY · avg 1973 · 906 bridges
Davidson County, TN · avg 1973 · 832 bridges
Lancaster County, PA · avg 1973 · 801 bridges

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

All 740 Good 377 Fair 338 Poor 25

All bridges (740)

Sort:

ELK GROVE BLVD

Good

Over: ELK GROVE CREEK

0.5 MI EAST OF S.R. 99, Sacramento, CA

Built 1976 Load: 49.6 t ADT: 29,869

U.S. HIGHWAY 50

Good

Over: UP RR SCRTD LRT FOLSOM

03-SAC-050-R6.34, Sacramento, CA

Built 1973 Load: 49.9 t ADT: 186,000

ELVERTA RD

Good

Over: EAST DRAINAGE CANAL

2.5 MI W/O RIO LINDA BLVD, Sacramento, CA

Built 1974 Load: 49.9 t ADT: 5,400

EXCELSIOR RD

Good

Over: LAGUNA CREEK

1.3 MI N/O CALVINE, Sacramento, CA

Built 1982 Load: 52.5 t ADT: 4,244

LEISURE LANE

Good

Over: STATE ROUTE 160

03-SAC-160-46.16-SAC, Sacramento, CA

Built 1946 Load: 53.5 t ADT: 6,000

RUSH RIVER DR

Good

Over: MAIN CANAL

1/4 MI S LITTLE RIVER WAY, Sacramento, CA

Built 1983 Load: 55.4 t ADT: 6,715

HOWE AVE SB

Good

Over: LA RIVIERA DR

0.25 MI N/O US HWY 50, Sacramento, CA

Built 1969 Load: 56.1 t ADT: 29,219

HOWE AVE NB

Good

Over: LA RIVIERA DR

0.25 MI N/O US HWY 50, Sacramento, CA

Built 1969 Load: 56.1 t ADT: 30,272

GLORIA DR

Good

Over: INTERSTATE 5

03-SAC-005-18.19-SAC, Sacramento, CA

Built 1974 Load: 58.6 t ADT: 8,900

HOLLY DRIVE

Good

Over: CRIPPLE CREEK

AT CEDAR DR, Sacramento, CA

Built 1982 Load: 59.6 t ADT: 700

E STREET

Good

Over: RIO LINDA CREEK

0.1 MI W OF 16TH ST, Sacramento, CA

Built 1984 Load: 60.3 t ADT: 5,600

AUBURN BOULEVARD

Good

Over: BROOKTREE CREEK

0.05 MI N MANZANITA AVE, Sacramento, CA

Built 1927 Load: 60.6 t ADT: 26,461

EMERALD VISTA DR

Good

Over: ELK GROVE CREEK

0.1 MI N ELK GROVE BLVD, Sacramento, CA

Built 1977 Load: 65.1 t ADT: 11,470

N5-J ST OFF RAMP

Good

Over: PEDESTRIAN WALKWAY

03-SAC-005-23.59-SAC, Sacramento, CA

Built 1968 Load: 75.8 t ADT: 12,000

INTERSTATE 5

Good

Over: EAST DRAINAGE CANAL

03-SAC-005-26.88-SAC, Sacramento, CA

Sacramento County Bridge Snapshot

Condition distribution

Sacramento County's Poor-condition bridges carry 335,201 vehicle crossings a day

61.9% of Sacramento County's bridges have passed the 50-year mark

One structure carries 17.3% of the county's Poor-condition bridge traffic

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

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

All bridges (740)

ELK GROVE BLVD

U.S. HIGHWAY 50

ELVERTA RD

EXCELSIOR RD

LEISURE LANE

RUSH RIVER DR

HOWE AVE SB

HOWE AVE NB

GLORIA DR

HOLLY DRIVE

E STREET

AUBURN BOULEVARD

EMERALD VISTA DR

N5-J ST OFF RAMP

INTERSTATE 5

FRANKLIN BLVD

ALTA MESA ROAD

CLAY STATION ROAD

CARMENCITA ROAD

HOBDAY ROAD

FREEPORT

NORTHGATE BLVD

CLAY STATION RD

ST RTE 160 WB LRT

INTERSTATE 5 SB

INTERSTATE 5 NB

41ST AVE

5TH AVE

LONGVIEW DR-W80 ON

STOCKTON BL-S99 ON

STATE ROUTE 99

FRUITRIDGE ROAD

WALDO RD

ANTELOPE ROAD

PT PLEASANT RD

LEARY RD

ALAN BOYD DR

VINTAGE OAK AVE

CENTER PARKWAY

BRADSHAW ROAD

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