Total bridges
374
Public highway bridges in Rankin County
County profile · official public datasets
Rankin County, MS
374 public highway bridges tracked in the FHWA National Bridge Inventory: 57.2% rated Good, 37.4% Fair, 5.3% Poor.
- 374
- Public bridges
- 57.2%
- Good condition
- 5.3%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Rankin County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- 48th
- of 82 on Poor share
- 5.3%
- Poor-condition share
- 374
- 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.
Rankin County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Rankin County ranks #48 of 82 Mississippi counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 5.3%). Rankin County, Mississippi contains 374 public highway bridges. Roughly 57.2% are rated “Good,” 37.4% “Fair,” and 5.3% “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
57.2%
214 of 374 rated 7-9
Fair condition
37.4%
140 of 374 rated 5-6
Poor condition
5.3%
20 of 374 rated 4 or below
In-state Poor-share rank
#48 of 82
Among Mississippi counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 374 NBI-tracked bridges by lowest applicable component rating.
Good 57.2% (214)
Fair 37.4% (140)
Poor 5.3% (20)
Rankin County's Poor-condition bridges carry 176,360 vehicle crossings a day
That is 6.2% of the county's reported daily bridge traffic on 5.3% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 8,818 crossings a day against 8,756 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 374 of 374 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
32.9% of Rankin County's bridges have passed the 50-year mark
123 of the 374 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 57.2% 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 13.6% of the county's Poor-condition bridge traffic
I 20 E TO I 55 N over OVER I 20 WB, built 1966, carries 24,000 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 20-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 176,360 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Rankin County's bridges were built
374 bridges with a recorded construction year, grouped by decade
- 1920s 1
1920–1929
1 bridges
- 1930s 13
1930–1939
13 bridges
- 1940s 3
1940–1949
3 bridges
- 1950s 12
1950–1959
12 bridges
- 1960s
1960–1969
71 bridges
- 1970s 31
1970–1979
31 bridges
- 1980s
1980–1989
56 bridges
- 1990s
1990–1999
98 bridges
- 2000s
2000–2009
55 bridges
- 2010s 21
2010–2019
21 bridges
- 2020s 13
2020–2029
13 bridges
What this shows Construction peaked in the 1990s, when 98 of the county's bridges still in the inventory were built, which is 26.2% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year (1985) matches the Mississippi average (1986).
How Rankin County compares with Mississippi's closest counties by inventory size
The 5 Mississippi counties nearest Rankin County in number of bridges, with their condition splits. Its 5.3% Poor share is the 3rd-lowest of these 6. Its average build year of 1985 against a peer-group mean of 1984 is in line with the group.
Showing the 5 closest of 81 Mississippi counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Lee County | 385 | 66.8% | 28.8% | 4.4% | 1984 |
| Lincoln County | 380 | 58.9% | 30.3% | 10.8% | 1986 |
| Rankin County (this page) | 374 | 57.2% | 37.4% | 5.3% | 1985 |
| Jones County | 329 | 48.3% | 44.1% | 7.6% | 1982 |
| Washington County | 317 | 34.7% | 54.9% | 10.4% | 1984 |
| Madison County | 311 | 51.1% | 45.7% | 3.2% | 1983 |
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 Rankin 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 Rankin County, both outside Mississippi so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside MS (374 bridges here).
- Benton County, IA · 374 bridges
- Baltimore city County, MD · 374 bridges
- Cape Girardeau County, MO · 374 bridges
- Monroe County, WI · 374 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 (214)
HENDERSON RD
GoodOver: DITCH
SEC 36 T 6N R 2E, Rankin, MS
Built 2000 Load: 53.9 t ADT: 670
J T BRADDY RD
GoodOver: STEEN CREEK
SEC 2 T 3N R 2E, Rankin, MS
Built 2004 Load: 54.6 t ADT: 180
ANDREW CHAPEL RD
GoodOver: BRUSH CREEK
SEC 19 T 6N R 4E B, Rankin, MS
Built 2020 Load: 58.6 t ADT: 1,300
US 49
GoodOver: SQUIRREL BRANCH
2.6 MI S I 20, Rankin, MS
Built 2020 Load: 58.8 t ADT: 47,000
US 49
GoodOver: SQUIRREL BRANCH
2.6 MI S I 20, Rankin, MS
Built 2020 Load: 58.8 t ADT: 47,000
US 49
GoodOver: CONWAY SLOUGH
0.4 MI S I 20, Rankin, MS
Built 1967 Load: 66.2 t ADT: 55,000
INDUSTRIAL DRIVE
GoodOver: DITCH
SEC 1 T 4N R 1E, Rankin, MS
Built 1980 Load: 70.6 t ADT: 3,100
I 20
GoodOver: RICHLAND CREEK
0.8 MI E I 20 & US 80E, Rankin, MS
Built 1966 Load: 81.0 t ADT: 15,500
SR 468
GoodOver: NEELY CREEK
1.6 MI N US 80, Rankin, MS
Built 1974 Load: 99.5 t ADT: 22,000
I 20
GoodOver: CONWAY SLOUGH
0.4 MI E US 49, Rankin, MS
Built 1965 Load: 99.9 t ADT: 75,000
I 20
GoodOver: RICHLAND CREEK
0.8 MI E I 20 & US 80E, Rankin, MS
Built 1966 Load: 99.9 t ADT: 15,500
I 20 SW RAMP
GoodOver: DITCH
SW EXIT RAMP GREENFIELD, Rankin, MS
Built 1983 Load: 99.9 t ADT: 11,000
SR 25
GoodOver: MILL CREEK
5.2 MI N SR 475, Rankin, MS
Built 1972 Load: 99.9 t ADT: 8,000
SR 471
GoodOver: TERRAPIN SKIN CREEK
1.0 MI N I 20, Rankin, MS
Built 2016 Load: 99.9 t ADT: 15,000
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.