County profile · official public datasets

Newton County, MO

300 public highway bridges tracked in the FHWA National Bridge Inventory: 39% rated Good, 54.3% Fair, 6.7% Poor.

300
Public bridges
39%
Good condition
6.7%
Poor condition

The verdict

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

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

Top 33%
lowest Poor share in state
6.7%
Poor-condition share
300
public highway bridges
1978
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.

Newton County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Newton County ranks #38 of 115 Missouri counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 6.7%). Newton County, Missouri contains 300 public highway bridges. Roughly 39% are rated “Good,” 54.3% “Fair,” and 6.7% “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

300

Public highway bridges in Newton County

Good condition

39%

117 of 300 rated 7-9

Fair condition

54.3%

163 of 300 rated 5-6

Poor condition

6.7%

20 of 300 rated 4 or below

In-state Poor-share rank

#38 of 115

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

Condition distribution

Share of 300 NBI-tracked bridges by lowest applicable component rating.

Good
39% (117)
Fair
54.3% (163)
Poor
6.7% (20)

Newton County's Poor-condition bridges carry 91,348 vehicle crossings a day

That is 9.6% of the county's reported daily bridge traffic on 6.7% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 4,567 crossings a day against 2,734 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 300 of 300 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

36.7% of Newton County's bridges have passed the 50-year mark

110 of the 300 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 39% 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 25.6% of the county's Poor-condition bridge traffic

IS 44 W over MO 43 MO 86, built 1956, carries 23,370 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 91,348 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Newton County's bridges were built

300 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1990s, when 77 of the county's bridges still in the inventory were built, which is 25.7% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year (1978) matches the Missouri average (1979).

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

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

The 5 Missouri counties nearest Newton County in number of bridges, with their condition splits. Its 6.7% Poor share is the 3rd-lowest of these 6. Its average build year of 1978 against a peer-group mean of 1982 is in line with the group.

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

Bridge inventory size and condition shares for Newton County and the 5 Missouri counties closest to it in inventory size
County Bridges Poor
Linn County 313 17.6%
Callaway County 303 6.3%
Adair County 301 6.6%
Newton County (this page) 300 6.7%
Macon County 291 7.6%
Chariton County 288 11.5%

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

Similar inventory size

Nearest county inventories outside MO (300 bridges here).

Similar average build year

Nearest mean year-built outside MO (1978 here).

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

Fair-condition bridges (163)

RT O S

Fair

Over: EDMONDSON HOLLOW

S 29 T 24 N R 30 W, Newton, MO

Built 1967 Load: 33.3 t ADT: 613

RT DD E

Fair

Over: MASON SPR BR

S 27 T 24 N R 34 W, Newton, MO

Built 2011 Load: 33.3 t ADT: 289

MO 59 S

Fair

Over: DRY BR

S 15 T 26 N R 31 W, Newton, MO

Built 1930 Load: 33.3 t ADT: 10,392

MO 59 S

Fair

Over: SHOAL CR

S 33 T 26 N R 31 W, Newton, MO

Built 1984 Load: 34.2 t ADT: 6,720

IS 44 E

Fair

Over: CST GLENDALE RD CST C

S 27 T 27 N R 33 W, Newton, MO

Built 1956 Load: 34.2 t ADT: 18,204

IS 44 W

Fair

Over: CST CASTLE DR CST GLEND

S 27 T 27 N R 33 W, Newton, MO

Built 1956 Load: 34.2 t ADT: 18,599

IS 44 E

Fair

Over: MO 86 MO 43

S 26 T 27 N R 33 W, Newton, MO

Built 1956 Load: 34.2 t ADT: 18,204

CARVER RD

Fair

Over: BAYNHAM BR

S 17 T 26 N R 31 W, Newton, MO

Built 2000 Load: 35.1 t ADT: 100

OTTAWA ST

Fair

Over: LIT LOST CR

S 35 T 25 N R 34 W, Newton, MO

Built 2008 Load: 35.1 t ADT: 350

LIME KILN RD

Fair

Over: SHOAL CR

S 7 T 25 N R 31 W, Newton, MO

Built 1980 Load: 36.0 t ADT: 1,000

CARVER RD

Fair

Over: TRIB OF GROVE CR

S 30 T 27 N R 31 W, Newton, MO

Built 1998 Load: 36.0 t ADT: 100

44TH ST

Fair

Over: SILVER CR

S 24 T 27 N R 33 W, Newton, MO

Built 2006 Load: 36.0 t ADT: 3,513

RT D E

Fair

Over: INDIAN CR

S 23 T 24 N R 31 W, Newton, MO

Built 1985 Load: 36.0 t ADT: 785

US 60 E

Fair

Over: SHOAL CR

S 5 T 25 N R 29 W, Newton, MO

Built 1992 Load: 36.0 t ADT: 3,442

COYOTE DR

Fair

Over: FIVE MILE CR

S 20 T 26 N R 33 W, Newton, MO

Built 2000 Load: 37.8 t ADT: 400

RT E S

Fair

Over: GUM SPRING CR

S 31 T 26 N R 30 W, Newton, MO

Built 1974 Load: 38.7 t ADT: 1,529

LIME KILN DR

Fair

Over: CARVER BR

S 14 T 26 N R 32 W, Newton, MO

Built 2001 Load: 38.7 t ADT: 250

LIME KILN DR

Fair

Over: BAYNHAM BR

S 24 T 26 N R 32 W, Newton, MO

Built 2002 Load: 38.7 t ADT: 250

RACCOON RD

Fair

Over: TRIB OF JONES CR

S 4 T 26 N R 30 W, Newton, MO

Built 2009 Load: 38.7 t ADT: 25

SPRUCE DR

Fair

Over: BULLSKIN CR

S 35 T 24 N R 32 W, Newton, MO

Built 1999 Load: 39.6 t ADT: 40

MO 86 E

Fair

Over: SPRING BR

S 19 T 25 N R 31 W, Newton, MO

Built 2010 Load: 39.6 t ADT: 3,154

VIXEN RD

Fair

Over: DOUTHIT BR

S 17 T 26 N R 29 W, Newton, MO

Built 2001 Load: 40.5 t ADT: 25

RT E S

Fair

Over: JONES CR

S 32 T 27 N R 30 W, Newton, MO

Built 1982 Load: 40.5 t ADT: 294

MCCUTCHEON LN

Fair

Over: THURMAN CR

S 20 T 27 N R 32 W, Newton, MO

Built 2001 Load: 41.4 t ADT: 50

MO 43 S

Fair

Over: BOILING SPRINGS BR

S 16 T 24 N R 34 W, Newton, MO

Built 2011 Load: 41.4 t ADT: 2,010

BU 60 E

Fair

Over: DTCH

S 25 T 25 N R 32 W, Newton, MO

Built 1957 Load: 42.3 t ADT: 13,249

US 60 E

Fair

Over: DRY BR

S 2 T 25 N R 31 W, Newton, MO

Built 1987 Load: 42.3 t ADT: 5,828

MO 59 S

Fair

Over: BAYNHAM BR

S 15 T 26 N R 31 W, Newton, MO

Built 1988 Load: 42.3 t ADT: 10,392

US 60 E

Fair

Over: MACDOUGAL CR

S 12 T 24 N R 34 W, Newton, MO

Built 1964 Load: 43.2 t ADT: 6,597

MO 37 S

Fair

Over: BR CENTER CR

S 28 T 27 N R 29 W, Newton, MO

Built 1965 Load: 43.2 t ADT: 2,178

RT E S

Fair

Over: CULPEPPER CR

S 31 T 26 N R 30 W, Newton, MO

Built 1974 Load: 43.2 t ADT: 1,529

MO 43 S

Fair

Over: IS 44

S 4 T 26 N R 33 W, Newton, MO

Built 1996 Load: 43.2 t ADT: 9,924

LP 49 S

Fair

Over: SMITH BR

S 7 T 26 N R 32 W, Newton, MO

Built 1939 Load: 43.2 t ADT: 4,820

ASPEN RD

Fair

Over: TRIB OF CENTER CR

S 21 T 27 N R 29 W, Newton, MO

Built 1930 Load: 44.1 t ADT: 40

IS 44 E

Fair

Over: LP 49

S 19 T 27 N R 32 W, Newton, MO

Built 2013 Load: 44.1 t ADT: 41,008

IRIS RD

Fair

Over: WILLOW BR

S 35 T 26 N R 33 W, Newton, MO

Built 1999 Load: 45.0 t ADT: 600

IS 49 N

Fair

Over: BUFFALO DRY BR

S 7 T 24 N R 32 W, Newton, MO

Built 1998 Load: 46.8 t ADT: 8,125

RT CC S

Fair

Over: LIT LOST CR

S 27 T 25 N R 33 W, Newton, MO

Built 1983 Load: 46.8 t ADT: 1,219

MO 43 S

Fair

Over: MASON SPR CR

S 20 T 24 N R 34 W, Newton, MO

Built 1989 Load: 46.8 t ADT: 2,010

IS 49 S

Fair

Over: CRD MULBERRY RD

S 21 T 25 N R 32 W, Newton, MO

Built 1996 Load: 46.8 t ADT: 9,776

IS 49 N

Fair

Over: US 60

S 34 T 25 N R 32 W, Newton, MO

Built 1999 Load: 47.7 t ADT: 8,125

DEPOT RD

Fair

Over: HICKORY CR

S 26 T 25 N R 31 W, Newton, MO

Built 2009 Load: 47.7 t ADT: 75

MAGADAM RD CONNECT

Fair

Over: W HIGH SCHOOL BR

S 24 T 25 N R 32 W, Newton, MO

Built 1992 Load: 47.7 t ADT: 950

DOUGLAS FIR RD

Fair

Over: BR OF FIVE MILE CR

S 7 T 26 N R 33 W, Newton, MO

Built 2004 Load: 50.4 t ADT: 500

IS 49 S

Fair

Over: CRD IRIS RD

S 4 T 25 N R 32 W, Newton, MO

Built 1996 Load: 51.3 t ADT: 12,253

ROSEBAY DR

Fair

Over: TRIB BUFFALO CR

S 28 T 24 N R 33 W, Newton, MO

Built 2008 Load: 52.2 t ADT: 100

IS 49 S

Fair

Over: SHOAL CR DRAIN ARE

S 9 T 26 N R 32 W, Newton, MO

Built 1993 Load: 52.2 t ADT: 24,986

BU 60 E

Fair

Over: SLOAN CR

S 8 T 25 N R 31 W, Newton, MO

Built 1930 Load: 52.2 t ADT: 4,750

IS 49 N

Fair

Over: CRD HOLLY RD

S 28 T 26 N R 32 W, Newton, MO

Built 1995 Load: 53.1 t ADT: 13,867

REDDINGS RD

Fair

Over: THURMAN CR

S 31 T 27 N R 32 W, Newton, MO

Built 2000 Load: 54.9 t ADT: 400
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.