County profile · official public datasets

Chickasaw County, MS

247 public highway bridges tracked in the FHWA National Bridge Inventory: 57.5% rated Good, 36% Fair, 6.5% Poor.

247
Public bridges: 57.5%
Good condition: 6.5%
Poor condition

The verdict

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

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

54th
of 82 on Poor share: 6.5%
Poor-condition share: 247
public highway bridges: 1984
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.

Chickasaw County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Chickasaw County ranks #54 of 82 Mississippi counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 6.5%). Chickasaw County, Mississippi contains 247 public highway bridges. Roughly 57.5% are rated “Good,” 36% “Fair,” and 6.5% “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

247

Public highway bridges in Chickasaw County

Good condition

57.5%

142 of 247 rated 7-9

Fair condition

36%

89 of 247 rated 5-6

Poor condition

6.5%

16 of 247 rated 4 or below

In-state Poor-share rank

#54 of 82

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

Condition distribution

Share of 247 NBI-tracked bridges by lowest applicable component rating.

Good

57.5% (142)

Fair

36% (89)

Poor

6.5% (16)

Chickasaw County's Poor-condition bridges carry 8,735 vehicle crossings a day

That is 3.5% of the county's reported daily bridge traffic on 6.5% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 546 crossings a day against 1,382 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 247 of 247 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

32% of Chickasaw County's bridges have passed the 50-year mark

79 of the 247 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 57.5% 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 22.9% of the county's Poor-condition bridge traffic

SR 245 over MATUBBY CREEK, built 1934, carries 2,000 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 16-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 8,735 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1930s

15
1940s

10
1950s

7
1960s

33
1970s

18
1980s

26
1990s

76
2000s

52
2010s

5
2020s

5

What this shows Construction peaked in the 1990s, when 76 of the county's bridges still in the inventory were built, which is 30.8% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year (1984) matches the Mississippi average (1986).

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

The 5 Mississippi counties nearest Chickasaw County in number of bridges, with their condition splits. Its 6.5% Poor share is the 5th-lowest of these 6. Its average build year of 1984 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 Chickasaw County and the 5 Mississippi counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Lafayette County	259	41.7%	54.1%	4.2%	1990
Marshall County	255	44.7%	47.8%	7.5%	1993
Lowndes County	248	76.2%	21%	2.8%	1987
Chickasaw County (this page)	247	57.5%	36%	6.5%	1984
Newton County	243	46.1%	49%	4.9%	1982
Pearl River County	232	74.6%	22.4%	3%	1986

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

Similar inventory size

Nearest county inventories outside MS (247 bridges here).

Houston County, AL · 247 bridges
Madera County, CA · 247 bridges
Shelby County, IN · 247 bridges
New York County, NY · 247 bridges

Similar average build year

Nearest mean year-built outside MS (1984 here).

Hennepin County, MN · avg 1984 · 936 bridges
Duval County, FL · avg 1984 · 831 bridges
El Paso County, CO · avg 1984 · 686 bridges
Bell County, TX · avg 1984 · 660 bridges

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

All 247 Good 142 Fair 89 Poor 16

All bridges (247)

Sort:

Chickasaw County Bridge Snapshot

Condition distribution

Chickasaw County's Poor-condition bridges carry 8,735 vehicle crossings a day

32% of Chickasaw County's bridges have passed the 50-year mark

One structure carries 22.9% of the county's Poor-condition bridge traffic

How Chickasaw 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

All bridges (247)

OLD HWY 15 CR515 S

CO. ROAD 406

CR 19

CR 53

CR 80

CR 89

CR 75

CR 82

CR 151

CR 116

CR 415

CR 179

NATCHEZ TRACE PARK

CR 24

CR 52

CR 100

CR 100

CR 436

CR 166

CR 166

CR 248

CL/CHIC CO LINE RD

CR 65

CR 419

SA090000

CR 137

CR 79

CR 248

CR 85

CR 417

SR 47

CR 117

NATCHEZ TRACE PARK

NATCHEZ TRACE PARK

CR 4

SR 340

NATCHEZ TRACE PARK

NATCHEZ TRACE PARK

NATCHEZ TRACE PARK

SYCAMORE ROAD

NATCHEZ TRACE PARK

CR 80

SR 15

SR 8

SR 8

SR 32

N JACKSON ST

SR 32

SR 389

SR 15

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