Total bridges
154
Public highway bridges in Clay County
County profile · official public datasets
154 public highway bridges tracked in the FHWA National Bridge Inventory: 73.4% rated Good, 24.7% Fair, 1.9% Poor.
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Clay County posts a top-quartile lowest Poor-condition share among rated counties in the state across mid-size county bridge inventory.
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.
According to the Federal Highway Administration's 2024 National Bridge Inventory, Clay County ranks #14 of 82 Mississippi counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 1.9%). Clay County, Mississippi contains 154 public highway bridges. Roughly 73.4% are rated “Good,” 24.7% “Fair,” and 1.9% “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
154
Public highway bridges in Clay County
Good condition
73.4%
113 of 154 rated 7-9
Fair condition
24.7%
38 of 154 rated 5-6
Poor condition
1.9%
3 of 154 rated 4 or below
In-state Poor-share rank
#14 of 82
Among Mississippi counties with 5+ bridges, lower share ranks better
Share of 154 NBI-tracked bridges by lowest applicable component rating.
That is 2% of the county's reported daily bridge traffic on 1.9% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 1,587 crossings a day against 1,340 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 154 of 154 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
34 of the 154 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 73.4% 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.
SR 50 over CHUQUATONCHEE RELIEF, built 1940, carries 4,200 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 4,760 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
154 bridges with a recorded construction year, grouped by decade
1940–1949
2 bridges
1950–1959
11 bridges
1960–1969
13 bridges
1970–1979
17 bridges
1980–1989
34 bridges
1990–1999
34 bridges
2000–2009
26 bridges
2010–2019
14 bridges
2020–2029
3 bridges
What this shows Construction peaked in the 1980s, when 34 of the county's bridges still in the inventory were built, which is 22.1% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1988) matches the Mississippi average (1986).
The 5 Mississippi counties nearest Clay County in number of bridges, with their condition splits. Its 1.9% Poor share is the 3rd-lowest of these 6. Its average build year of 1988 against a peer-group mean of 1985 is in line with the group.
Showing the 5 closest of 81 Mississippi counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Yalobusha County | 158 | 45.6% | 48.1% | 6.3% | 1979 |
| Franklin County | 157 | 58.6% | 31.2% | 10.2% | 1987 |
| Tallahatchie County | 155 | 42.6% | 37.4% | 20% | 1985 |
| Walthall County | 154 | 85.7% | 13% | 1.3% | 1987 |
| Clay County (this page) | 154 | 73.4% | 24.7% | 1.9% | 1988 |
| Lamar County | 150 | 82.7% | 17.3% | 0% | 1985 |
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 Clay County's. Source: FHWA National Bridge Inventory, 2024 release.
Two NBI-derived peer sets for Clay County, both outside Mississippi so the neighborhoods are not the same-state size table above.
Nearest county inventories outside MS (154 bridges here).
Nearest mean year-built outside MS (1988 here).
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Over: MOSELEY CREEK
SEC 30 T15S R 4E, Clay, MS
Over: REED CREEK
SEC_ 1_T16S_R 3E, Clay, MS
Over: STREAM
SEC 6 T17S R 5E, Clay, MS
Over: BLUFF CREEK
1.3 MI E WEBSTER CL, Clay, MS
Over: SUN CREEK
SEC 20 T20N R13E, Clay, MS
Over: JOHNSON CREEK
SEC 4 T20N R13E B, Clay, MS
Over: TOWN CREEK
SEC 34 T16S R 7E B, Clay, MS
Over: CHUQUATONCHEE CREEK
3.2 MI W US 45A, Clay, MS
Over: CREEK
5.6 MI E WEBSTER CL, Clay, MS
Over: LINE CREEK NORTH CANAL
SEC 30 T16S R 4E B, Clay, MS
Over: TOWN CREEK
SEC 11 T17S R 7E B, Clay, MS
Over: CREEK
0.2 MI N LOWNDES CL, Clay, MS
Over: DOUBLE CABIN CREEK
SEC 20 T20N R13E B, Clay, MS
Over: SAND CREEK
11.6 MI E WEBSTER CL, Clay, MS
Over: TIBBEE CREEK
3.1 MI N LOWNDES CL, Clay, MS
Over: TIBBEE CREEK
3.1 MI N LOWNDES CL, Clay, MS
Over: BELL CREEK
SEC 22 T15S R 5E B, Clay, MS
Over: SPRING CREEK
SEC 28 T17S R 7E, Clay, MS
Over: WALERLY CREEK
SEC 24 T17S R 6E B, Clay, MS
Over: TOWN CREEK
SEC 10 T17S R 6E, Clay, MS
Over: TOWN CREEK
SEC 22 T17S R 6E B, Clay, MS
Over: UNDERWOOD CREEK
6.2 MI N SR 50, Clay, MS
Over: TOWN CREEK
SEC 26 T17S R 6E B, Clay, MS
Over: DEATH CREEK
SEC 15 T16S R 5E, Clay, MS
Over: STANDING REED CREEK
8.6 MI E WEBSTER CL, Clay, MS
Over: STREAM
SEC 13 T17S R 6E B, Clay, MS
Over: UNNAMED STREAM
SEC 34 T16S R 6E B, Clay, MS
Over: HICKORY CREEK
SEC 4 T17S R 6E, Clay, MS
Over: JOHNSON BRANCH
SEC 4 T20N R13E B, Clay, MS
Over: BEASLEY BRANCH
SEC 27 T21N R13E B, Clay, MS
Over: LINE CREEK SOUTH CANAL
SEC 34 T21N R13E B, Clay, MS
Over: PRAIRIE CREEK
4.8 MI E WEBSTER CL, Clay, MS
Over: STREAM
6.0 MILES SOUTH OF MS ROU, Clay, MS
Over: WAVERLY BRANCH
SEC 22 T17S R 7E B, Clay, MS
Over: CARIDINE CREEK
SEC 10 T15S R 4E B, Clay, MS
Over: UNDERWOOD CREEK RELIEF
6.0 MI N SR 50, Clay, MS
Over: KCS RR
SEC 34 T16S R 6E B, Clay, MS
Over: TOWN CREEK
2.0 MI S SR 50, Clay, MS
Read our methodology - how this data is sourced, computed, and verified.
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.