County profile · official public datasets

Neosho County, KS

241 public highway bridges tracked in the FHWA National Bridge Inventory: 60.2% rated Good, 29.5% Fair, 10.4% Poor.

241
Public bridges: 60.2%
Good condition: 10.4%
Poor condition

The verdict

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

Neosho County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

94th
of 104 on Poor share: 10.4%
Poor-condition share: 241
public highway bridges: 1969
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.

Neosho County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Neosho County ranks #94 of 104 Kansas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 10.4%). Neosho County, Kansas contains 241 public highway bridges. Roughly 60.2% are rated “Good,” 29.5% “Fair,” and 10.4% “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

241

Public highway bridges in Neosho County

Good condition

60.2%

145 of 241 rated 7-9

Fair condition

29.5%

71 of 241 rated 5-6

Poor condition

10.4%

25 of 241 rated 4 or below

In-state Poor-share rank

#94 of 104

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

Condition distribution

Share of 241 NBI-tracked bridges by lowest applicable component rating.

Good

60.2% (145)

Fair

29.5% (71)

Poor

10.4% (25)

Neosho County's Poor-condition bridges carry 7,157 vehicle crossings a day

That is 3.5% of the county's reported daily bridge traffic on 10.4% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 286 crossings a day against 1,183 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 241 of 241 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

47.3% of Neosho County's bridges have passed the 50-year mark

114 of the 241 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 60.2% 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 36.8% of the county's Poor-condition bridge traffic

RS 2096 10.6-0.20 over NEOSHO RIVER, built 1930, carries 2,633 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 25-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 7,157 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1900s

1
1910s

2
1920s

14
1930s

26
1940s

16
1950s

27
1960s

17
1970s

28
1980s

51
1990s

33
2000s

15
2010s

11

What this shows Construction peaked in the 1980s, when 51 of the county's bridges still in the inventory were built, which is 21.2% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1969) matches the Kansas average (1972).

How Neosho County compares with Kansas's closest counties by inventory size

The 5 Kansas counties nearest Neosho County in number of bridges, with their condition splits. Its 10.4% Poor share is the 6th-lowest of these 6. Its average build year of 1969 against a peer-group mean of 1973 is in line with the group.

Showing the 5 closest of 103 Kansas counties eligible for comparison.

Bridge inventory size and condition shares for Neosho County and the 5 Kansas counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Norton County	244	53.7%	44.3%	2%	1980
Osborne County	244	52.5%	40.2%	7.4%	1967
Wabaunsee County	242	36.8%	52.9%	10.3%	1963
Barber County	241	44.8%	53.9%	1.2%	1974
Leavenworth County	241	61%	36.1%	2.9%	1981
Neosho County (this page)	241	60.2%	29.5%	10.4%	1969

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 Neosho 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 Neosho County, both outside Kansas so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside KS (241 bridges here).

Sumter County, AL · 241 bridges
Hardin County, IA · 241 bridges
Iowa County, IA · 241 bridges
Ingham County, MI · 241 bridges

Similar average build year

Nearest mean year-built outside KS (1969 here).

Cook County, IL · avg 1969 · 1,721 bridges
Fresno County, CA · avg 1969 · 916 bridges
Cuyahoga County, OH · avg 1969 · 871 bridges
Ventura County, CA · avg 1969 · 501 bridges

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

All 241 Good 145 Fair 71 Poor 25

Good-condition bridges (145)

Sort:

Neosho County Bridge Snapshot

Condition distribution

Neosho County's Poor-condition bridges carry 7,157 vehicle crossings a day

47.3% of Neosho County's bridges have passed the 50-year mark

One structure carries 36.8% of the county's Poor-condition bridge traffic

How Neosho County compares with Kansas'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 (145)

32.5-14.3 LOCAL

US169 HWY

RS 1329 35-1.25

48-16.6 LOCAL

US59 K39 HWY

7-9.3 LOCAL

28-4.8 MINOR

RS 2096 10-1.95

RS 496 16-11.15

RS 499 40-22.2

RS 1633 34-21.8

RS 1788 46-17.60

RS 1788 46-17.20

RS 2096 10-1.65

47-4.6 LOCAL

45-4.9 MINOR

28-15.4 LOCAL

15-21.8 LOCAL

29-21.9 LOCAL

46-4.7 LOCAL

41-22.1 LOCAL

48-20.3 LOCAL

CENTRAL AVE.

MALCOLM AVE.

ASHBY AVE.

KATY AVE.

ALLEY

K47 HWY

K39 HWY

US169 HWY

U-59 HWY

39-9.6 LOCAL

US169 HWY

URB0400/ 21ST ST

US169 HWY

7-23.4 MINOR

30-8.0 LOCAL

US169 HWY

US169 HWY

RS 168

RS 1331 8-7.60

47-23.7 MINOR

7-11.5 LOCAL

47-13.5 MINOR

RS0001

K-39 HWY

URB0406 7TH ST

MAIN STREET

K39 HWY

K-47 HWY

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