County profile · official public datasets

Monroe County, AL

142 public highway bridges tracked in the FHWA National Bridge Inventory: 55.6% rated Good, 40.8% Fair, 3.5% Poor.

142
Public bridges: 55.6%
Good condition: 3.5%
Poor condition

The verdict

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

Monroe County pairs a higher-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.

40th
of 67 on Poor share: 3.5%
Poor-condition share: 142
public highway bridges: 1980
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.

Monroe County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Monroe County ranks #40 of 67 Alabama counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.5%). Monroe County, Alabama contains 142 public highway bridges. Roughly 55.6% are rated “Good,” 40.8% “Fair,” and 3.5% “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

142

Public highway bridges in Monroe County

Good condition

55.6%

79 of 142 rated 7-9

Fair condition

40.8%

58 of 142 rated 5-6

Poor condition

3.5%

5 of 142 rated 4 or below

In-state Poor-share rank

#40 of 67

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

Condition distribution

Share of 142 NBI-tracked bridges by lowest applicable component rating.

Good

55.6% (79)

Fair

40.8% (58)

Poor

3.5% (5)

Monroe County's Poor-condition bridges carry 335 vehicle crossings a day

That is 0.3% of the county's reported daily bridge traffic on 3.5% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 67 crossings a day against 600 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 142 of 142 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

45.1% of Monroe County's bridges have passed the 50-year mark

64 of the 142 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 55.6% 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 29.9% of the county's Poor-condition bridge traffic

LITTLE RIVER ST P over CREEK, built 1930, carries 100 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 5-bridge count understates how much of the daily burden sits on a single crossing.

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

1920s

1
1930s

8
1940s

8
1950s

20
1960s

20
1970s

9
1980s

29
1990s

10
2000s

13
2010s

12
2020s

12

What this shows Construction peaked in the 1980s, when 29 of the county's bridges still in the inventory were built, which is 20.4% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year is 1980, 6 years newer than the Alabama average of 1974.

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

The 5 Alabama counties nearest Monroe County in number of bridges, with their condition splits. Its 3.5% Poor share is the 4th-lowest of these 6. Its average build year of 1980 against a peer-group mean of 1971 is 9 years newer.

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

Bridge inventory size and condition shares for Monroe County and the 5 Alabama counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Clarke County	155	70.3%	29.7%	0%	1973
Choctaw County	154	39.6%	55.2%	5.2%	1971
Tallapoosa County	149	34.2%	55%	10.7%	1967
Monroe County (this page)	142	55.6%	40.8%	3.5%	1980
Bullock County	136	20.6%	77.9%	1.5%	1970
Henry County	133	41.4%	58.6%	0%	1975

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

Similar inventory size

Nearest county inventories outside AL (142 bridges here).

Henderson County, IL · 142 bridges
Graham County, KS · 142 bridges
Kenton County, KY · 142 bridges
Freeborn County, MN · 142 bridges

Similar average build year

Nearest mean year-built outside AL (1980 here).

Tulsa County, OK · avg 1980 · 1,135 bridges
Miami-Dade County, FL · avg 1980 · 1,057 bridges
Pulaski County, AR · avg 1980 · 721 bridges
McLennan County, TX · avg 1980 · 714 bridges

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

All 142 Good 79 Fair 58 Poor 5

Good-condition bridges (79)

Sort:

Monroe County Bridge Snapshot

Condition distribution

Monroe County's Poor-condition bridges carry 335 vehicle crossings a day

45.1% of Monroe County's bridges have passed the 50-year mark

One structure carries 29.9% of the county's Poor-condition bridge traffic

How Monroe 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 (79)

_CR 1

COUNTY ROAD

OLD FEDERAL BYPASS

SR 41

COUNTY ROUTE 35

COUNTY ROUTE 29

COUNTY ROUTE 56

COUNTY ROAD

S MOUNT PLEASENT

SKINNERS MILL RD

Cow Ford Rd

COUNTY ROAD

Pineville RD

RIVER RIDGE ROAD

CR 1

CR

Manistee RD

Pineville Road

Perryville Road

Watson RD

Blacks Loop

Co. Route 11

Co. Route 11

River Ridge Rd

SR 41

COUNTY ROUTE 1

US 84

CR 45

US 84

CR 42

SR 265

SR 265

SR 41

COUNTY ROUTE 23

SR 21

SR 41

SR 265

SR 21

OLD SALEM CREEK RD

COUNTY RT. 56

COUNTY ROUTE 6

COUNTY ROAD 7

COUNTY ROUTE 56

COUNTY ROAD 18

Railroad Trail

SR 59

SR 47

COUNTY ROUTE 79

SR 41

_CR 2

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