Total bridges
200
Public highway bridges in Simpson County
County profile · official public datasets
Simpson County, MS
200 public highway bridges tracked in the FHWA National Bridge Inventory: 63.5% rated Good, 30% Fair, 6.5% Poor.
- 200
- Public bridges
- 63.5%
- Good condition
- 6.5%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Simpson County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- 55th
- of 82 on Poor share
- 6.5%
- Poor-condition share
- 200
- 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.
Simpson County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Simpson County ranks #55 of 82 Mississippi counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 6.5%). Simpson County, Mississippi contains 200 public highway bridges. Roughly 63.5% are rated “Good,” 30% “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.
Good condition
63.5%
127 of 200 rated 7-9
Fair condition
30%
60 of 200 rated 5-6
Poor condition
6.5%
13 of 200 rated 4 or below
In-state Poor-share rank
#55 of 82
Among Mississippi counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 200 NBI-tracked bridges by lowest applicable component rating.
Good 63.5% (127)
Fair 30% (60)
Poor 6.5% (13)
Simpson County's Poor-condition bridges carry 7,755 vehicle crossings a day
That is 2.3% 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 597 crossings a day against 1,331 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 200 of 200 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
30% of Simpson County's bridges have passed the 50-year mark
60 of the 200 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 63.5% 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 37.4% of the county's Poor-condition bridge traffic
SR 149 over SELLERS CREEK, built 1935, carries 2,900 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 13-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 7,755 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Simpson County's bridges were built
200 bridges with a recorded construction year, grouped by decade
- 1930s 10
1930–1939
10 bridges
- 1940s 4
1940–1949
4 bridges
- 1950s 11
1950–1959
11 bridges
- 1960s
1960–1969
28 bridges
- 1970s
1970–1979
20 bridges
- 1980s
1980–1989
41 bridges
- 1990s
1990–1999
25 bridges
- 2000s
2000–2009
39 bridges
- 2010s 16
2010–2019
16 bridges
- 2020s 6
2020–2029
6 bridges
What this shows Construction peaked in the 1980s, when 41 of the county's bridges still in the inventory were built, which is 20.5% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1984) matches the Mississippi average (1986).
How Simpson County compares with Mississippi's closest counties by inventory size
The 5 Mississippi counties nearest Simpson County in number of bridges, with their condition splits. Its 6.5% Poor share is the 6th-lowest of these 6. Its average build year of 1984 against a peer-group mean of 1987 is in line with the group.
Showing the 5 closest of 81 Mississippi counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Marion County | 201 | 72.1% | 22.9% | 5% | 1987 |
| Noxubee County | 201 | 50.2% | 45.8% | 4% | 1985 |
| Simpson County (this page) | 200 | 63.5% | 30% | 6.5% | 1984 |
| Leake County | 199 | 80.9% | 18.1% | 1% | 1986 |
| Neshoba County | 199 | 58.8% | 37.7% | 3.5% | 1989 |
| Scott County | 199 | 53.3% | 45.2% | 1.5% | 1988 |
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 Simpson 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 Simpson County, both outside Mississippi so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside MS (200 bridges here).
- Escambia County, AL · 200 bridges
- Clay County, AR · 200 bridges
- Parke County, IN · 200 bridges
- Fayette County, KY · 200 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 bridges (200)
OLD HICKORY ROAD
FairOver: BRANCH OF OKATOMA CREEK
SEC 28 T 1N R 6E B, Simpson, MS
Built 1980 Load: 10.1 t ADT: 100
OLD PEARL ROAD
FairOver: ROCKY CREEK
SEC 9 T 2N R 1E B, Simpson, MS
Built 1962 Load: 10.9 t ADT: 660
COATS ROAD
FairOver: OKATOMA CREEK
SEC 10 T10N R17W B, Simpson, MS
Built 1980 Load: 11.5 t ADT: 200
DEWITT FLINT ROAD
FairOver: SELLERS CREEK
SEC 18 T 1N R 5E, Simpson, MS
Built 1983 Load: 11.7 t ADT: 120
A.G.WILLIAMSON RD
FairOver: TRIB TO WESTVILLE CREEK
SEC 3 T10N R19W, Simpson, MS
Built 1997 Load: 12.9 t ADT: 40
ROBERT BUSH ROAD
FairOver: STRONG RIVER
SEC 26 T 1N R 3E B, Simpson, MS
Built 1964 Load: 13.6 t ADT: 220
BIG V ROAD
FairOver: BRANCH OF USPOHA CREEK
SEC 33 T10N R17W, Simpson, MS
Built 1982 Load: 13.9 t ADT: 60
SHERMAN ROAD
FairOver: VAUGHNS CREEK
SEC 31 T10N R20W, Simpson, MS
Built 1985 Load: 17.4 t ADT: 60
HIGHWAY 472
FairOver: BANKS CREEK
SEC 12 T10N R21W, Simpson, MS
Built 1975 Load: 18.2 t ADT: 110
SR 28
FairOver: STRONG RIVER
8.9 MI E COPIAH CL, Simpson, MS
Built 1943 Load: 18.3 t ADT: 2,500
GARDNER ROAD
FairOver: BRANCH OF SELLERS CREEK
SEC 18 T 1N R 5E, Simpson, MS
Built 1933 Load: 19.6 t ADT: 60
OLD RIVER ROAD
FairOver: LIMESTONE CREEK
SEC 32 T 1N R 2E B, Simpson, MS
Built 1965 Load: 21.3 t ADT: 310
MACEDONIA ROAD
FairOver: RILES CREEK
SEC 23 T 1N R 4E B, Simpson, MS
Built 1975 Load: 21.5 t ADT: 150
MAIN STREET
FairOver: SELLERS CREEK
SEC 3 T 1N R 4E, Simpson, MS
Built 1971 Load: 21.8 t ADT: 2,500
SR 28
FairOver: BIG CREEK
5.4 MI E COPIAH CL, Simpson, MS
Built 1952 Load: 22.5 t ADT: 2,200
SARATOGA-SHARON RD
FairOver: RR/USPOHA CREEK
SEC 26 T10N R17W B, Simpson, MS
Built 2007 Load: 23.7 t ADT: 660
HOPEWELL ROAD
FairOver: LIMESTONE CREEK
SEC 28 T 2N R 2E B, Simpson, MS
Built 1962 Load: 23.8 t ADT: 150
SR 13
FairOver: SELLERS CREEK
0.3 MI N SR 43, Simpson, MS
Built 1940 Load: 23.9 t ADT: 4,800
SR 28
FairOver: QUINN CREEK
8.0 MI E COPIAH CL, Simpson, MS
Built 1942 Load: 23.9 t ADT: 2,200
US 49 FRONT ROAD
FairOver: UNNAMED STREAM
2.4 MI S SR 28, Simpson, MS
Built 1934 Load: 24.4 t ADT: 600
SR 43
FairOver: WEST PRONG SILVER CREEK
2.3 MI N LAWRENCE CL, Simpson, MS
Built 1951 Load: 25.9 t ADT: 980
SR 13
FairOver: RIALS CREEK
3.1 MI S SR 43, Simpson, MS
Built 1939 Load: 26.5 t ADT: 2,400
US 49 FRONTAGE RD
FairOver: BEAR CREEK
0.9 MI S SR 540, Simpson, MS
Built 1934 Load: 26.6 t ADT: 600
SR 43
FairOver: WESTVILLE CREEK
0.4 MI N SR 28, Simpson, MS
Built 1963 Load: 26.8 t ADT: 1,600
SR 149
FairOver: DABBS CREEK
4.2 MI N SR 13, Simpson, MS
Built 1935 Load: 26.8 t ADT: 680
US 49
FairOver: SR 13
US 49 OVER SR 13, Simpson, MS
Built 1961 Load: 27.6 t ADT: 10,500
US 49
FairOver: DABBS CREEK
4.3 MI N SR 13, Simpson, MS
Built 1962 Load: 31.7 t ADT: 9,500
SILOAM CHURCH ROAD
FairOver: BRANCH OF OKATOMA CREEK
SEC 5 T10N R17W B, Simpson, MS
Built 2006 Load: 32.4 t ADT: 1,800
RALEIGH RD (MAGEE)
FairOver: BRANCH OF OKATOMA CREEK
SEC 31 T 1N R 6E, Simpson, MS
Built 1955 Load: 32.7 t ADT: 3,800
HARRISVLLE-BRAXTON
FairOver: LITTLE CREEK
SEC 19 T 2N R 3E B, Simpson, MS
Built 1975 Load: 32.7 t ADT: 390
ATHENS ROAD
FairOver: SELLERS CREEK
SEC 2 T 1N R 4E B, Simpson, MS
Built 1961 Load: 33.0 t ADT: 680
OLD PEARL ROAD
FairOver: BRANCH INTO PEARL RIVER
SEC 27 T 2N R 1E B, Simpson, MS
Built 1964 Load: 33.0 t ADT: 660
HOLYFIELD ROAD
FairOver: MIDDLE PRG SILVER CREEK
SEC 21 T10N R19W, Simpson, MS
Built 2005 Load: 33.0 t ADT: 60
LEMING ROAD
FairOver: O. HARPER CREEK
SEC 6 T 1N R 3E, Simpson, MS
Built 2011 Load: 33.0 t ADT: 5
PINOLA-BRAXTON RD
FairOver: SANDERS CREEK
SEC 10 T 2N R 3E, Simpson, MS
Built 1970 Load: 33.2 t ADT: 180
US 49
FairOver: SELLERS CREEK
6.2 MI N SR 28, Simpson, MS
Built 1965 Load: 34.2 t ADT: 21,000
US 49
FairOver: USPAHA CREEK
1.1 MI N COVINGTON CL, Simpson, MS
Built 1964 Load: 34.5 t ADT: 10,000
US 49
FairOver: GRAVEL PIT CREEK
3.1 MI S SR 540, Simpson, MS
Built 1965 Load: 35.1 t ADT: 24,000
JUPITER ROAD
FairOver: BRANCH INTO STRONG RIVER
SEC 23 T 1N R 3E B, Simpson, MS
Built 1967 Load: 35.3 t ADT: 220
OLD PEARL ROAD
FairOver: WEEKS MILL CREEK
SEC 2 T 1N R 1E B, Simpson, MS
Built 1981 Load: 35.6 t ADT: 150
A.G.WILLIAMSON RD
FairOver: WESTVILLE CREEK
SEC 32 T 1N R 4E, Simpson, MS
Built 1985 Load: 35.6 t ADT: 40
R.T.WOMACK ROAD
FairOver: OKATOMA CREEK
SEC 1 T 1N R 5E, Simpson, MS
Built 2004 Load: 35.6 t ADT: 50
DAN KEYES ROAD
FairOver: ROCKY CREEK
SEC 2 T 2N R 1E, Simpson, MS
Built 2009 Load: 35.6 t ADT: 20
RIALS CREEK ROAD
FairOver: BRANCH OF RILES CREEK
SEC 6 T10N R18W B, Simpson, MS
Built 1989 Load: 35.6 t ADT: 170
OAK GROVE ROAD
FairOver: WESTVILLE CREEK
SEC 4 T10N R19W, Simpson, MS
Built 1982 Load: 35.6 t ADT: 60
SCHOOLHOUSE ROAD
FairOver: BRANCH OF STRONG RIVER
SEC 2 T10N R20W, Simpson, MS
Built 1985 Load: 35.6 t ADT: 50
IRVIN JONES ROAD
FairOver: BR W PRONG SILVER CREEK
SEC 25 T10N R20W B, Simpson, MS
Built 2009 Load: 35.6 t ADT: 40
CLARK ROAD
FairOver: BRANCH OF BIG CREEK
SEC 1 T 2N R 2E, Simpson, MS
Built 2017 Load: 35.6 t ADT: 20
ROBERT RUSSELL RD.
FairOver: MIDDLE PRONG SILVER CRK
SEC 8 T 9N R19W, Simpson, MS
Built 2021 Load: 35.6 t ADT: 30
BEARCAT ROAD
FairOver: BIG CREEK
SEC 24 T 1N R 2E B, Simpson, MS
Built 1992 Load: 37.6 t ADT: 100
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.