County profile · official public datasets

Barton County, MO

211 public highway bridges tracked in the FHWA National Bridge Inventory: 42.2% rated Good, 47.9% Fair, 10% Poor.

211
Public bridges
42.2%
Good condition
10%
Poor condition

The verdict

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

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

68th
of 115 on Poor share
10%
Poor-condition share
211
public highway bridges
1977
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.

Barton County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Barton County ranks #68 of 115 Missouri counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 10%). Barton County, Missouri contains 211 public highway bridges. Roughly 42.2% are rated “Good,” 47.9% “Fair,” and 10% “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

211

Public highway bridges in Barton County

Good condition

42.2%

89 of 211 rated 7-9

Fair condition

47.9%

101 of 211 rated 5-6

Poor condition

10%

21 of 211 rated 4 or below

In-state Poor-share rank

#68 of 115

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

Condition distribution

Share of 211 NBI-tracked bridges by lowest applicable component rating.

Good
42.2% (89)
Fair
47.9% (101)
Poor
10% (21)

Barton County's Poor-condition bridges carry 23,455 vehicle crossings a day

That is 14% of the county's reported daily bridge traffic on 10% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 1,117 crossings a day against 399 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 211 of 211 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

38.9% of Barton County's bridges have passed the 50-year mark

82 of the 211 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 42.2% 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 32.2% of the county's Poor-condition bridge traffic

IS 49 S over US 160, built 1972, carries 7,563 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 21-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 23,455 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Barton County's bridges were built

211 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1990s, when 35 of the county's bridges still in the inventory were built, which is 16.6% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year (1977) matches the Missouri average (1979).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

How Barton County compares with Missouri's closest counties by inventory size

The 5 Missouri counties nearest Barton County in number of bridges, with their condition splits. Its 10% Poor share is the 4th-lowest of these 6. Its average build year of 1977 against a peer-group mean of 1982 is 5 years older.

Showing the 5 closest of 114 Missouri counties eligible for comparison.

Bridge inventory size and condition shares for Barton County and the 5 Missouri counties closest to it in inventory size
County Bridges Poor
Dunklin County 214 6.5%
Putnam County 213 15.5%
Barton County (this page) 211 10%
Caldwell County 208 10.6%
Pemiscot County 206 9.2%
Scotland County 201 4.5%

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

Similar inventory size

Nearest county inventories outside MO (211 bridges here).

Similar average build year

Nearest mean year-built outside MO (1977 here).

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

All 211 Good 89 Fair 101 Poor 21

Poor-condition bridges (21)

NW 70TH RD

Poor

Over: DRYWOOD CR

S 15 T 33 N R 33 W, Barton, MO

Built 1900 Load: 0.0 t ADT: 5

NE 90TH RD

Poor

Over: HORSE CR

S 10 T 33 N R 29 W, Barton, MO

Built 1920 Load: 2.7 t ADT: 15

NW 80TH RD

Poor

Over: DRYWOOD CR

S 16 T 33 N R 33 W, Barton, MO

Built 1900 Load: 2.7 t ADT: 30

SE 45TH RD

Poor

Over: TRIB N FK SPRING R

S 14 T 31 N R 29 W, Barton, MO

Built 1910 Load: 2.7 t ADT: 10

SE 50TH LN

Poor

Over: PETTIS CR

S 14 T 31 N R 30 W, Barton, MO

Built 1920 Load: 3.6 t ADT: 20

NW 80TH RD

Poor

Over: TRIB DRYWOOD CR

S 16 T 33 N R 33 W, Barton, MO

Built 1900 Load: 4.5 t ADT: 30

SE 65TH LN

Poor

Over: TRIB N FK SPRING R

S 25 T 32 N R 30 W, Barton, MO

Built 1920 Load: 5.4 t ADT: 10

NE 75TH RD

Poor

Over: PATTON BR

S 15 T 33 N R 29 W, Barton, MO

Built 1978 Load: 6.3 t ADT: 5

SE 90TH RD

Poor

Over: COON CR

S 2 T 30 N R 30 W, Barton, MO

Built 1979 Load: 6.3 t ADT: 25

RT V E

Poor

Over: LIT DRY WOOD CR

S 17 T 33 N R 31 W, Barton, MO

Built 1953 Load: 9.0 t ADT: 425

SE 15TH LN

Poor

Over: PETTIS CR

S 18 T 31 N R 30 W, Barton, MO

Built 1978 Load: 12.6 t ADT: 100

RT K E

Poor

Over: DRYWOOD CR

S 4 T 33 N R 33 W, Barton, MO

Built 1961 Load: 12.6 t ADT: 370

SE 45TH RD

Poor

Over: N FK SPRING RVR

S 14 T 31 N R 29 W, Barton, MO

Built 1930 Load: 14.4 t ADT: 10

RT DD E

Poor

Over: BR

S 12 T 32 N R 32 W, Barton, MO

Built 1956 Load: 14.4 t ADT: 634

SE 45TH RD

Poor

Over: PETTIS CR

S 14 T 31 N R 30 W, Barton, MO

Built 1982 Load: 15.3 t ADT: 25

RT O S

Poor

Over: W FK SPRING RVR

S 36 T 32 N R 32 W, Barton, MO

Built 1960 Load: 16.2 t ADT: 175

NE 90TH RD

Poor

Over: TRIB OF HORSE CR

S 2 T 33 N R 29 W, Barton, MO

Built 1980 Load: 18.9 t ADT: 20

IS 49 S

Poor

Over: N FK SPRING RVR OV

S 14 T 31 N R 31 W, Barton, MO

Built 1947 Load: 26.1 t ADT: 6,442

NW 150TH LN

Poor

Over: TRIB OF DRYWOOD CR

S 29 T 33 N R 33 W, Barton, MO

Built 1988 Load: 32.4 t ADT: 20

IS 49 S

Poor

Over: US 160

S 26 T 32 N R 31 W, Barton, MO

Built 1972 Load: 37.8 t ADT: 7,563

IS 49 N

Poor

Over: US 160

S 26 T 32 N R 31 W, Barton, MO

Built 1972 Load: 37.8 t ADT: 7,521

Read our methodology - how this data is sourced, computed, and verified.

Related

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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.