Total bridges
311
Public highway bridges in Madison County
County profile · official public datasets
311 public highway bridges tracked in the FHWA National Bridge Inventory: 51.1% rated Good, 45.7% Fair, 3.2% Poor.
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Madison 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, Madison County ranks #25 of 82 Mississippi counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.2%). Madison County, Mississippi contains 311 public highway bridges. Roughly 51.1% are rated “Good,” 45.7% “Fair,” and 3.2% “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
311
Public highway bridges in Madison County
Good condition
51.1%
159 of 311 rated 7-9
Fair condition
45.7%
142 of 311 rated 5-6
Poor condition
3.2%
10 of 311 rated 4 or below
In-state Poor-share rank
#25 of 82
Among Mississippi counties with 5+ bridges, lower share ranks better
Share of 311 NBI-tracked bridges by lowest applicable component rating.
That is 0.3% of the county's reported daily bridge traffic on 3.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 498 crossings a day against 7,286 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 311 of 311 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
106 of the 311 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 51.1% 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.
US 51 over TILDA BOGUE CREEK, built 1929, carries 1,900 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 10-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 4,980 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
311 bridges with a recorded construction year, grouped by decade
1920–1929
4 bridges
1930–1939
13 bridges
1940–1949
4 bridges
1950–1959
10 bridges
1960–1969
60 bridges
1970–1979
47 bridges
1980–1989
46 bridges
1990–1999
38 bridges
2000–2009
52 bridges
2010–2019
29 bridges
2020–2029
8 bridges
What this shows Construction peaked in the 1960s, when 60 of the county's bridges still in the inventory were built, which is 19.3% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1983) matches the Mississippi average (1986).
The 5 Mississippi counties nearest Madison County in number of bridges, with their condition splits. Its 3.2% Poor share is the 1st-lowest of these 6. Its average build year of 1983 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 |
|---|---|---|---|---|---|
| Jones County | 329 | 48.3% | 44.1% | 7.6% | 1982 |
| Washington County | 317 | 34.7% | 54.9% | 10.4% | 1984 |
| Madison County (this page) | 311 | 51.1% | 45.7% | 3.2% | 1983 |
| Harrison County | 301 | 52.8% | 41.9% | 5.3% | 1986 |
| Monroe County | 290 | 64.5% | 31.4% | 4.1% | 1989 |
| Forrest County | 283 | 46.3% | 49.5% | 4.2% | 1982 |
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 Madison County's. Source: FHWA National Bridge Inventory, 2024 release.
Two NBI-derived peer sets for Madison County, both outside Mississippi so the neighborhoods are not the same-state size table above.
Nearest county inventories outside MS (311 bridges here).
Nearest mean year-built outside MS (1983 here).
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Over: BIG BLACK RIVER RELIEF
4.4 MI N SR 22, Madison, MS
Over: WALNUT CREEK
SEC 25 T 9N R 3E B, Madison, MS
Over: BCH OF CULLEY CK
SEC 21 T 7N R 2E, Madison, MS
Over: CREEK
SEC 29 T 8N R 1E, Madison, MS
Over: I 55
SR 22 BYPASS OVER I 55, Madison, MS
Over: STEED ROAD
0.8 MI N NATCHEZ TRACE, Madison, MS
Over: BEAR CREEK RELIEF
1.3 MI E US 51, Madison, MS
Over: BEAR CREEK RELIEF
1.3 MI E US 51, Madison, MS
Over: STEED ROAD
0.8 MI N NATCHEZ TRACE, Madison, MS
Over: BOGUE CHITTO TRIBUTARY
4.4 MI E HINDS CL, Madison, MS
Over: CNIC RR
1.0 MI E I 55, Madison, MS
Over: CNIC RR
1.0 MI E I 55, Madison, MS
Over: PERSIMMON CREEK
SEC 10 T 8N R 1E, Madison, MS
Over: BEAR CREEK TRIBUTARY
SEC 4 T 8N R 3E, Madison, MS
Over: WALNUT CREEK TRIBUTARY
SEC 22 T 9N R 3E, Madison, MS
Over: BCH OF WALNUT CREEK
SEC 31 T 9N R 4E, Madison, MS
Over: DRY CREEK RELIEF
SEC 17 T10N R 4E, Madison, MS
Over: BIRDS CREEK
SEC 23 T11N R 3E, Madison, MS
Over: SOLDIER COLONY ROAD
0.9 MI S SR 22, Madison, MS
Over: SOLDIER COLONY ROAD
0.9 MI S SR 22, Madison, MS
Over: HEINDL ROAD
1.9 MI N SR 22, Madison, MS
Over: DITCH
0.5 MI E HINDS CL, Madison, MS
Over: AIRPORT ROAD (OLD CANTON
11.18 MILES FROM MS ROUTE, Madison, MS
Over: BEAR CREEK TRIB
3.3 MI N SR 857, Madison, MS
Over: LUCKETT DITCH
1.4 MI E I 55, Madison, MS
Over: TILDA BOGUE CREEK
3.0 MI N SR 22, Madison, MS
Over: HIGHLAND COLONY PARKWAY
3P PROJECT SECTION, Madison, MS
Over: I 55
SR 463 OVER I 55, Madison, MS
Over: BRASHEAR CREEK
SEC 17 T 7N R 2E, Madison, MS
Over: TILDA BOGUE TRIBUTARY
SEC 32 T10N R 3E, Madison, MS
Over: PELLOPHALIA CREEK
SEC 1 T10N R 5E, Madison, MS
Over: LOVES CREEK TRIBUTARY
SEC 1 T11N R 3E, Madison, MS
Over: HOBUCK CREEK
SEC 15 T11N R 4E, Madison, MS
Over: HOBUCK CREEK RELIEF
SEC 15 T11N R 4E, Madison, MS
Over: MANSELL CREEK TRIBUTARY
SEC 34 T11N R 5E, Madison, MS
Over: COUNTY ROAD
3O PROJECT SECTION., Madison, MS
Over: BEAR CREEK TRIB
3.3 MI N SR 857, Madison, MS
Over: RELIEF
9.5 MI N SR 16, Madison, MS
Over: DITCH
0.1 MI E US 51, Madison, MS
Over: I 55
3.0 MI N SR 463, Madison, MS
Over: BEAR CREEK
SEC 31 T 8N R 2E B, Madison, MS
Over: DITCH
0.3 MI W SR 43, Madison, MS
Over: CREEK
SEC 17 T 7N R 1E, Madison, MS
Over: DITCH
0.4 MI N SR 857, Madison, MS
Over: RELIEF
1.6 MI E I 55, Madison, MS
Over: STREAM
0.7 MI N SR 859, Madison, MS
Over: COUNTY ROAD
4.5 MILES FROM U.S. ROUTE, Madison, MS
Over: RICE ROAD
9.99 MILES FROM MS ROUTE, Madison, MS
Over: ROSS BARNETT RESERVOIR R
6.2 MILES FROM MS ROUTE 4, Madison, MS
Over: ROSS BARNETT RESERVOIR
4.4 MILES FROM MS ROUTE 4, Madison, 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.