County profile · official public datasets

Autauga County, AL

118 public highway bridges tracked in the FHWA National Bridge Inventory: 39% rated Good, 58.5% Fair, 2.5% Poor.

118
Public bridges: 39%
Good condition: 2.5%
Poor condition

The verdict

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

Autauga County posts a better-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

Top 45%
lowest Poor share in state: 2.5%
Poor-condition share: 118
public highway bridges: 1977
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.

Autauga County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Autauga County ranks #30 of 67 Alabama counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 2.5%). Autauga County, Alabama contains 118 public highway bridges. Roughly 39% are rated “Good,” 58.5% “Fair,” and 2.5% “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

118

Public highway bridges in Autauga County

Good condition

39%

46 of 118 rated 7-9

Fair condition

58.5%

69 of 118 rated 5-6

Poor condition

2.5%

3 of 118 rated 4 or below

In-state Poor-share rank

#30 of 67

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

Condition distribution

Share of 118 NBI-tracked bridges by lowest applicable component rating.

Good

39% (46)

Fair

58.5% (69)

Poor

2.5% (3)

Autauga County's Poor-condition bridges carry 26,478 vehicle crossings a day

That is 5.9% of the county's reported daily bridge traffic on 2.5% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 8,826 crossings a day against 1,658 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 118 of 118 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

47.5% of Autauga County's bridges have passed the 50-year mark

56 of the 118 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 39% 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 56.2% of the county's Poor-condition bridge traffic

US 82 over AUTAUGA CREEK, built 1957, carries 14,890 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 3-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 26,478 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1920s

2
1930s

7
1940s

3
1950s

17
1960s

21
1970s

11
1980s

14
1990s

21
2000s

12
2010s

8
2020s

2

What this shows Construction peaked in the 1960s, when 21 of the county's bridges still in the inventory were built, which is 17.8% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1977) matches the Alabama average (1974).

How Autauga County compares with Alabama's closest counties by inventory size

The 5 Alabama counties nearest Autauga County in number of bridges, with their condition splits. Its 2.5% Poor share is the 4th-lowest of these 6. Its average build year of 1977 against a peer-group mean of 1969 is 8 years newer.

Showing the 5 closest of 66 Alabama counties eligible for comparison.

Bridge inventory size and condition shares for Autauga County and the 5 Alabama counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Bullock County	136	20.6%	77.9%	1.5%	1970
Henry County	133	41.4%	58.6%	0%	1975
Clay County	129	25.6%	67.4%	7%	1966
Bibb County	126	45.2%	54%	0.8%	1965
Coosa County	126	20.6%	75.4%	4%	1970
Autauga County (this page)	118	39%	58.5%	2.5%	1977

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

Similar inventory size

Nearest county inventories outside AL (118 bridges here).

Perry County, AR · 118 bridges
Montrose County, CO · 118 bridges
Rabun County, GA · 118 bridges
Johnson County, IL · 118 bridges

Similar average build year

Nearest mean year-built outside AL (1977 here).

San Diego County, CA · avg 1977 · 1,632 bridges
King County, WA · avg 1977 · 1,238 bridges
Riverside County, CA · avg 1977 · 1,117 bridges
Shelby County, TN · avg 1977 · 1,077 bridges

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

All 118 Good 46 Fair 69 Poor 3

Good-condition bridges (46)

Sort:

Autauga County Bridge Snapshot

Condition distribution

Autauga County's Poor-condition bridges carry 26,478 vehicle crossings a day

47.5% of Autauga County's bridges have passed the 50-year mark

One structure carries 56.2% of the county's Poor-condition bridge traffic

How Autauga County compares with Alabama's closest counties by inventory size

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

Good-condition bridges (46)

CO.RD. 64

CO.RD.68

CO.RD.19

CO.RD.27

CO.RD.20

CO.RD.19

CO.RD 29

CO.RD.24

CO.RD.39

CO RD 20

CO.RD 21

JONES BLUFF PARK

CO RD 57

CO.RD.55

CO.RD.8

Co. Rd. 85

COUNTY ROAD 85

COUNTY ROAD 50

COUNTY ROAD 59

Co Rd 85

CO.RD.68

COUNTY ROAD 10

CO. RD. 22

CO.RD.1

COUNTY ROAD 37

CO RD 82

US 82

CO RD 6

CO.RD.16

CO.RD.42

CO RD 7

CO RD 42

CO.RD.40

CO.RD.40

CO.RD.19

CR. 40

SELMA HIGHWAY

W. FOURTH ST

US 82

COUNTY ROAD 10

COUNTY ROAD 57

US 82

CO.RD.1

CO RD 79

AL 14

CO RD 38

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