County profile · official public datasets

Scott County, MS

199 public highway bridges tracked in the FHWA National Bridge Inventory: 53.3% rated Good, 45.2% Fair, 1.5% Poor.

199
Public bridges: 53.3%
Good condition: 1.5%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Scott County posts a top-quartile lowest Poor-condition share among rated counties in the state across mid-size county bridge inventory.

Top 11%
lowest Poor share in state: 1.5%
Poor-condition share: 199
public highway bridges: 1988
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.

Scott County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Scott County ranks #9 of 82 Mississippi counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 1.5%). Scott County, Mississippi contains 199 public highway bridges. Roughly 53.3% are rated “Good,” 45.2% “Fair,” and 1.5% “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.

Total bridges

199

Public highway bridges in Scott County

Good condition

53.3%

106 of 199 rated 7-9

Fair condition

45.2%

90 of 199 rated 5-6

Poor condition

1.5%

3 of 199 rated 4 or below

In-state Poor-share rank

#9 of 82

Among Mississippi counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 199 NBI-tracked bridges by lowest applicable component rating.

Good

53.3% (106)

Fair

45.2% (90)

Poor

1.5% (3)

Scott County's Poor-condition bridges carry 715 vehicle crossings a day

That is 0.2% of the county's reported daily bridge traffic on 1.5% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 238 crossings a day against 2,170 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 199 of 199 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

25.6% of Scott County's bridges have passed the 50-year mark

51 of the 199 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 53.3% 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 83.9% of the county's Poor-condition bridge traffic

MORTON MARATHON RD over STRONG RIVER, built 1965, carries 600 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 715 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1930s

6
1940s

3
1950s

2
1960s

31
1970s

16
1980s

24
1990s

54
2000s

53
2010s

6
2020s

4

What this shows Construction peaked in the 1990s, when 54 of the county's bridges still in the inventory were built, which is 27.1% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year (1988) matches the Mississippi average (1986).

How Scott County compares with Mississippi's closest counties by inventory size

The 5 Mississippi counties nearest Scott County in number of bridges, with their condition splits. Its 1.5% Poor share is the 2nd-lowest of these 6. Its average build year of 1988 against a peer-group mean of 1986 is in line with the group.

Showing the 5 closest of 81 Mississippi counties eligible for comparison.

Bridge inventory size and condition shares for Scott County and the 5 Mississippi counties closest to it in inventory size
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	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 (this page)	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 Scott 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 Scott County, both outside Mississippi so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside MS (199 bridges here).

Montgomery County, AR · 199 bridges
Warren County, IL · 199 bridges
Dallas County, IA · 199 bridges
Latimer County, OK · 199 bridges

Similar average build year

Nearest mean year-built outside MS (1988 here).

Travis County, TX · avg 1988 · 1,544 bridges
Grant County, OK · avg 1988 · 476 bridges
Loudoun County, VA · avg 1988 · 442 bridges
Licking County, OH · avg 1988 · 439 bridges

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All 199 Good 106 Fair 90 Poor 3

Good-condition bridges (106)

Sort:

Scott County Bridge Snapshot

Condition distribution

Scott County's Poor-condition bridges carry 715 vehicle crossings a day

25.6% of Scott County's bridges have passed the 50-year mark

One structure carries 83.9% of the county's Poor-condition bridge traffic

How Scott County compares with Mississippi's closest counties by inventory size

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

Good-condition bridges (106)

MORGAN ROAD

MORGAN ROAD

SR 35

SR 481

HARPERVILLE ROAD

SR 21

SR 481

FRONT ST.

SR 35

FAIRCHILDS ROAD

OLD JACKSON RD

SR 13

US 80

TOM KAIZER ROAD

SR 21

SR 35

COOPERVILLE ROAD

SR 21

IRBY ROAD

OLD JACKSON RD.

GUM SPRINGS ROAD

HILLSBORO LUDLOWRD

HALL ROAD

MAC ROAD

SR 13

SR 13

MORTON-MARATHON RD

MORTON MARATHON RD

MORTON MARATHON RD

CLIFTON HILLSBORO

HAYS-SOUTH ROAD

MONTROSE ROAD

GOODHOPE ROAD

FAIRCHILDS ROAD

SR 25

OLD HILLSBORO RD

OLD HILLSBORO RD

GOLDEN ST.PARK RD

SR 21

MERCHANT ROAD

I 20

OLD HWY 80

MCCURDY ROAD

FAIRCHILDS ROAD

SR 21

SR 35

MORTON MARATHON RD

MORTON MARATHON RD

SNOOK ROAD

MEASELLS ROAD

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