Total bridges
266
Public highway bridges in Copiah County
County profile · official public datasets
266 public highway bridges tracked in the FHWA National Bridge Inventory: 25.9% rated Good, 69.2% Fair, 4.9% Poor.
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Copiah County posts a better-than-median 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, Copiah County ranks #41 of 82 Mississippi counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 4.9%). Copiah County, Mississippi contains 266 public highway bridges. Roughly 25.9% are rated “Good,” 69.2% “Fair,” and 4.9% “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
266
Public highway bridges in Copiah County
Good condition
25.9%
69 of 266 rated 7-9
Fair condition
69.2%
184 of 266 rated 5-6
Poor condition
4.9%
13 of 266 rated 4 or below
In-state Poor-share rank
#41 of 82
Among Mississippi counties with 5+ bridges, lower share ranks better
Share of 266 NBI-tracked bridges by lowest applicable component rating.
That is 13.2% of the county's reported daily bridge traffic on 4.9% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 4,148 crossings a day against 530 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 266 of 266 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
98 of the 266 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 25.9% 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.
I 55 over CLEAR CREEK ROAD, built 1963, carries 14,500 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 13-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 53,920 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
266 bridges with a recorded construction year, grouped by decade
1930–1939
3 bridges
1940–1949
4 bridges
1950–1959
20 bridges
1960–1969
65 bridges
1970–1979
22 bridges
1980–1989
17 bridges
1990–1999
23 bridges
2000–2009
53 bridges
2010–2019
48 bridges
2020–2029
11 bridges
What this shows Construction peaked in the 1960s, when 65 of the county's bridges still in the inventory were built, which is 24.4% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1987) matches the Mississippi average (1986).
The 5 Mississippi counties nearest Copiah County in number of bridges, with their condition splits. Its 4.9% Poor share is the 4th-lowest of these 6. Its average build year of 1987 against a peer-group mean of 1991 is in line with the group.
Showing the 5 closest of 81 Mississippi counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Bolivar County | 272 | 26.1% | 65.8% | 8.1% | 1987 |
| Yazoo County | 271 | 26.6% | 60.9% | 12.5% | 1987 |
| Jackson County | 268 | 69.4% | 28% | 2.6% | 1996 |
| DeSoto County | 266 | 59.4% | 38.7% | 1.9% | 1995 |
| Copiah County (this page) | 266 | 25.9% | 69.2% | 4.9% | 1987 |
| Lafayette County | 259 | 41.7% | 54.1% | 4.2% | 1990 |
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 Copiah County's. Source: FHWA National Bridge Inventory, 2024 release.
Two NBI-derived peer sets for Copiah County, both outside Mississippi so the neighborhoods are not the same-state size table above.
Nearest county inventories outside MS (266 bridges here).
Nearest mean year-built outside MS (1987 here).
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Over: TRIB TO PEARL RIVER
SEC 22 T 1N R 1E, Copiah, MS
Over: CHESTNUT CREEK
SEC 5 T 2N R 1W, Copiah, MS
Over: TRIB TO PEARL RIVER
SEC 6 T 9N R21W, Copiah, MS
Over: TRIB TO PEARL RIVER
SEC 18 T 2N R 1E, Copiah, MS
Over: TRIB TO BAHALA CREEK
SEC 24 T 9N R 9E B, Copiah, MS
Over: BRUSHY FORK
SEC 2 T11N R 5E B, Copiah, MS
Over: PEGIES CREEK
SEC 6 T 9N R10E B, Copiah, MS
Over: LONG CREEK
SEC 15 T 1N R 3W B, Copiah, MS
Over: BAYOU PIERRE RIVER
SEC 3 T10N R 7E B, Copiah, MS
Over: BAHALA CREEK
SEC 31 T10N R 9E, Copiah, MS
Over: BCH OF WHISKY CREEK
SEC 31 T11N R 3W B, Copiah, MS
Over: TRIB OF PIERRE BAYOU
SEC 31 T 2N R 3W, Copiah, MS
Over: LICK CREEK
SEC 14 T10N R 9E, Copiah, MS
Over: TRIB TO TURKEY CREEK
SEC 32 T 2N R 2W B, Copiah, MS
Over: FOSTER CREEK BCH
SEC 13 T10N R 5E B, Copiah, MS
Over: TRIB TO JACKSON CREEK
SEC 16 T10N R 6E B, Copiah, MS
Over: BRANDYWINE CREEK BCH
SEC 9 T 9N R 5E, Copiah, MS
Over: TRIB TO COPIAH CREEK
SEC 15 T10N R10E, Copiah, MS
Over: FOSTER CREEK BCH
SEC 11 T10N R 5E B, Copiah, MS
Over: CNIC RR AND LOCAL RD
0.1 MI E US 51, Copiah, MS
Over: BAYOU PIERRE RELIEF
5.5 MI W I 55, Copiah, MS
Over: BAYOU PIERE RELIEF
5.1 MI W I 55, Copiah, MS
Over: I 55
0.7 MI S SR 28, Copiah, MS
Over: TYSON ROAD
7.2 MI N LINCOLN CL, Copiah, MS
Over: TYSON ROAD
7.2 MI N LINCOLN CL, Copiah, MS
Over: LONG CREEK
SEC 29 T 1N R 2W, Copiah, MS
Over: LITTLE COPIAH CREEK
SEC 8 T 1N R 1W, Copiah, MS
Over: HALEY CREEK
SEC 15 T 2N R 1W B, Copiah, MS
Over: TRIB TO BAHALA CREEK
SEC 22 T 9N R 9E B, Copiah, MS
Over: RELIEF TO JACKSON CREEK
SEC 22 T10N R 6E B, Copiah, MS
Over: LONG CREEK
SEC 30 T 1N R 2W B, Copiah, MS
Over: WHISKEY CREEK
SEC 32 T 1N R 3W, Copiah, MS
Over: CLEAR CREEK
SEC 14 T 2N R 2W B, Copiah, MS
Over: BRANCH OF COPIAH CREEK
SEC 20 T 1N R 1W, Copiah, MS
Over: SWEETWATER
SEC 26 T 9N R 6E, Copiah, MS
Over: UNNAMED CREEK
SEC 34 T 1N R 1E, Copiah, MS
Over: TRIB TO BAHALA CREEK
SEC 28 T 9N R10E, Copiah, MS
Over: SARDIS BRANCH
SEC 4 T 9N R 9E B, Copiah, MS
Over: TURKEY CREEK
SEC 5 T 1N R 3W B, Copiah, MS
Over: UNNAMED STREAM
4.8 MI E US 51, Copiah, MS
Over: TURKEY CREEK
SEC 6 T 1N R 2W B, Copiah, MS
Over: COPIAH CREEK
SEC 36 T 1N R 2W B, Copiah, MS
Over: HOLCOMB CREEK
SEC 32 T 1N R 3W B, Copiah, MS
Over: BAHALA CREEK
SEC 24 T10N R 8E B, Copiah, MS
Over: SR 28
I 55 OVER SR 28, Copiah, MS
Over: SR 28
I 55 OVER SR 28, Copiah, MS
Over: UNNAMED STREAM
SEC 28 T10N R 5E B, Copiah, MS
Over: BRANCH OF PEARL RIVER
SEC 24 T 2N R 1W B, Copiah, MS
Over: CNIC RR
0.5 MI E SR 51, Copiah, MS
Over: BRUSHY CREEK
5.2 MI N SR 28, Copiah, 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.