County profile · official public datasets

Calhoun County, MS

213 public highway bridges tracked in the FHWA National Bridge Inventory: 48.8% rated Good, 40.8% Fair, 10.3% Poor.

213
Public bridges: 48.8%
Good condition: 10.3%
Poor condition

The verdict

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

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

73rd
of 82 on Poor share: 10.3%
Poor-condition share: 213
public highway bridges: 1985
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.

Calhoun County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Calhoun County ranks #73 of 82 Mississippi counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 10.3%). Calhoun County, Mississippi contains 213 public highway bridges. Roughly 48.8% are rated “Good,” 40.8% “Fair,” and 10.3% “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

213

Public highway bridges in Calhoun County

Good condition

48.8%

104 of 213 rated 7-9

Fair condition

40.8%

87 of 213 rated 5-6

Poor condition

10.3%

22 of 213 rated 4 or below

In-state Poor-share rank

#73 of 82

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

Condition distribution

Share of 213 NBI-tracked bridges by lowest applicable component rating.

Good

48.8% (104)

Fair

40.8% (87)

Poor

10.3% (22)

Calhoun County's Poor-condition bridges carry 14,680 vehicle crossings a day

That is 7.1% of the county's reported daily bridge traffic on 10.3% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 667 crossings a day against 886 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 213 of 213 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

33.3% of Calhoun County's bridges have passed the 50-year mark

71 of the 213 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 48.8% 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 23.2% of the county's Poor-condition bridge traffic

SR 9 over YALOBUSHA CANAL, built 1952, carries 3,400 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 22-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 14,680 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1930s

2
1940s

4
1950s

38
1960s

17
1970s

16
1980s

30
1990s

37
2000s

40
2010s

27
2020s

2

What this shows Construction peaked in the 2000s, when 40 of the county's bridges still in the inventory were built, which is 18.8% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year (1985) matches the Mississippi average (1986).

How Calhoun County compares with Mississippi's closest counties by inventory size

The 5 Mississippi counties nearest Calhoun County in number of bridges, with their condition splits. Its 10.3% Poor share is the 6th-lowest of these 6. Its average build year of 1985 against a peer-group mean of 1988 is in line with the group.

Showing the 5 closest of 81 Mississippi counties eligible for comparison.

Bridge inventory size and condition shares for Calhoun County and the 5 Mississippi counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Wayne County	214	46.7%	44.9%	8.4%	1988
Alcorn County	213	64.8%	33.8%	1.4%	1991
Calhoun County (this page)	213	48.8%	40.8%	10.3%	1985
Holmes County	212	52.4%	39.6%	8%	1988
Kemper County	211	60.2%	37%	2.8%	1991
Pike County	211	55.5%	38.9%	5.7%	1984

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

Similar inventory size

Nearest county inventories outside MS (213 bridges here).

Bonneville County, ID · 213 bridges
Floyd County, IA · 213 bridges
Calhoun County, MI · 213 bridges
Putnam County, MO · 213 bridges

Similar average build year

Nearest mean year-built outside MS (1985 here).

Hillsborough County, FL · avg 1985 · 840 bridges
Lancaster County, NE · avg 1985 · 661 bridges
Nueces County, TX · avg 1985 · 528 bridges
Grayson County, TX · avg 1985 · 513 bridges

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

All 213 Good 104 Fair 87 Poor 22

Good-condition bridges (104)

Sort:

Calhoun County Bridge Snapshot

Condition distribution

Calhoun County's Poor-condition bridges carry 14,680 vehicle crossings a day

33.3% of Calhoun County's bridges have passed the 50-year mark

One structure carries 23.2% of the county's Poor-condition bridge traffic

How Calhoun County compares with Mississippi'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 (104)

CR 326

CR 406

CR 109

SR 32

CR 401

SR 331

CR 418

SR 8

CR 235

CR 448

CR 471

SR 341

SR 9

CR 272/ ARTHUR LAN

CR 380

SR 8

SR 330

SR 341

SR 9

CR 345

SR 32

CR 457

CR 400

CR 119

CR 300

CR 380

CR 306

CR 107

CR 418

CR 471

CR 493

CR 308

SR 32

CR 308

CR 418

CR 275

CR 267

CR 178

CR 368

SR 9

SR 32

SR 341

CR 418

SR 341

SR 341

SR 8

CR 400

CR 418

SR 341

CR 233

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