Total bridges
213
Public highway bridges in Calhoun County
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.
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.
When Calhoun County's bridges were built
213 bridges with a recorded construction year, grouped by decade
- 1930s 2
1930–1939
2 bridges
- 1940s 4
1940–1949
4 bridges
- 1950s
1950–1959
38 bridges
- 1960s
1960–1969
17 bridges
- 1970s
1970–1979
16 bridges
- 1980s
1980–1989
30 bridges
- 1990s
1990–1999
37 bridges
- 2000s
2000–2009
40 bridges
- 2010s
2010–2019
27 bridges
- 2020s 2
2020–2029
2 bridges
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.
| 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.
Good-condition bridges (104)
CR 468
GoodOver: CREEK
SEC 33 T14S R 1E, Calhoun, MS
Built 2011 Load: 60.6 t ADT: 50
SR 341
GoodOver: RELIEF
11.5 MI N SR 8, Calhoun, MS
Built 1976 Load: 65.5 t ADT: 760
CR 418
GoodOver: BUCK CREEK
SEC 26 T22N R10E, Calhoun, MS
Built 1995 Load: 72.9 t ADT: 30
SR 9
GoodOver: STREAM
4.5 MI N WEBSTER CL, Calhoun, MS
Built 1949 Load: 75.2 t ADT: 1,300
Read our methodology - how this data is sourced, computed, and verified.
Related
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.