County profile · official public datasets

Ripley County, MO

116 public highway bridges tracked in the FHWA National Bridge Inventory: 33.6% rated Good, 61.2% Fair, 5.2% Poor.

116
Public bridges
33.6%
Good condition
5.2%
Poor condition

The verdict

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

Ripley County pairs a top-quartile lowest Poor-condition share among rated counties in the state with an older average build year than the state inventory.

Top 20%
lowest Poor share in state
5.2%
Poor-condition share
116
public highway bridges
1965
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.

Ripley County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Ripley County ranks #23 of 115 Missouri counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 5.2%). Ripley County, Missouri contains 116 public highway bridges. Roughly 33.6% are rated “Good,” 61.2% “Fair,” and 5.2% “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

116

Public highway bridges in Ripley County

Good condition

33.6%

39 of 116 rated 7-9

Fair condition

61.2%

71 of 116 rated 5-6

Poor condition

5.2%

6 of 116 rated 4 or below

In-state Poor-share rank

#23 of 115

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

Condition distribution

Share of 116 NBI-tracked bridges by lowest applicable component rating.

Good
33.6% (39)
Fair
61.2% (71)
Poor
5.2% (6)

Ripley County's Poor-condition bridges carry 4,074 vehicle crossings a day

That is 5.1% of the county's reported daily bridge traffic on 5.2% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 679 crossings a day against 630 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 116 of 116 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

66.4% of Ripley County's bridges have passed the 50-year mark

77 of the 116 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 33.6% 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 29% of the county's Poor-condition bridge traffic

MO 142 E over LOGAN CR, built 1933, carries 1,181 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 6-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 4,074 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Ripley County's bridges were built

116 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1950s, when 21 of the county's bridges still in the inventory were built, which is 18.1% of those with a recorded year. That cohort is now 65 to 74 years old in the 2024 inventory. Its average build year is 1965, 14 years older than the Missouri average of 1979.

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

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

The 5 Missouri counties nearest Ripley County in number of bridges, with their condition splits. Its 5.2% Poor share is the 1st-lowest of these 6. Its average build year of 1965 against a peer-group mean of 1969 is in line with the group.

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

Bridge inventory size and condition shares for Ripley County and the 5 Missouri counties closest to it in inventory size
County Bridges Poor
Perry County 120 17.5%
Laclede County 119 10.1%
Crawford County 118 7.6%
Madison County 118 19.5%
Ripley County (this page) 116 5.2%
Dallas County 114 6.1%

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

Similar inventory size

Nearest county inventories outside MO (116 bridges here).

Similar average build year

Nearest mean year-built outside MO (1965 here).

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

All 116 Good 39 Fair 71 Poor 6

Good-condition bridges (39)

142E-44

Good

Over: DTCH NO 1

S 11 T 22 N R 4 E, Ripley, MO

Built 1987 Load: 9.0 t ADT: 100

T-1

Good

Over: CYPRESS CR

S 13 T 23 N R 3 E, Ripley, MO

Built 1983 Load: 16.2 t ADT: 2

T-1

Good

Over: CALDWELL CR

S 17 T 23 N R 4 E, Ripley, MO

Built 1988 Load: 16.2 t ADT: 55

LOCUST ST

Good

Over: QUICK CR

S 26 T 23 N R 2 E, Ripley, MO

Built 1948 Load: 16.2 t ADT: 100

BROOKS LN

Good

Over: LIT LOGAN CR

S 17 T 23 N R 3 E, Ripley, MO

Built 1984 Load: 16.2 t ADT: 300

H-5

Good

Over: LIT BLACK RVR

S 8 T 22 N R 4 E, Ripley, MO

Built 1924 Load: 18.0 t ADT: 35

COUNTY RD 98

Good

Over: DTCH NO 2

S 9 T 22 N R 4 E, Ripley, MO

Built 1950 Load: 18.9 t ADT: 30

H-10

Good

Over: LIT BLACK RVR

S 35 T 22 N R 3 E, Ripley, MO

Built 1940 Load: 25.2 t ADT: 20

RT K S

Good

Over: DRAW

S 20 T 24 N R 3 E, Ripley, MO

Built 1954 Load: 26.1 t ADT: 809

US 160 E

Good

Over: BRIAR CR

S 20 T 23 N R 2 E, Ripley, MO

Built 1972 Load: 27.0 t ADT: 1,200

COUNTY RD H-10

Good

Over: DTCH NO 2

S 35 T 22 N R 3 E, Ripley, MO

Built 2020 Load: 27.0 t ADT: 50

RT Y S

Good

Over: BILLS CR

S 15 T 23 N R 2 E, Ripley, MO

Built 1958 Load: 27.0 t ADT: 1,007

VINE ST

Good

Over: QUICK CR

S 26 T 23 N R 2 E, Ripley, MO

Built 2014 Load: 27.9 t ADT: 250

RT U S

Good

Over: DUDLEY CR

S 11 T 22 N R 2 E, Ripley, MO

Built 1956 Load: 28.8 t ADT: 1,004

W-2

Good

Over: DTCH NO 1

S 21 T 22 N R 4 E, Ripley, MO

Built 1989 Load: 32.4 t ADT: 35

COUNTY RD

Good

Over: LIT BLACK RVR

S 4 T 22 N R 4 E, Ripley, MO

Built 1990 Load: 32.4 t ADT: 30

142E-2

Good

Over: BR OF CURRENT RVR

S 26 T 23 N R 2 E, Ripley, MO

Built 1992 Load: 32.4 t ADT: 200

MO 142 E

Good

Over: LIT BLACK RVR

S 34 T 23 N R 4 E, Ripley, MO

Built 2020 Load: 32.4 t ADT: 1,176

RT O S

Good

Over: SANDERS CR

S 21 T 25 N R 2 E, Ripley, MO

Built 1960 Load: 32.4 t ADT: 265

RT Y S

Good

Over: SIMPSON CR

S 10 T 23 N R 2 E, Ripley, MO

Built 1965 Load: 33.3 t ADT: 1,007

RT A S

Good

Over: MULBERRY CR

S 4 T 22 N R 2 E, Ripley, MO

Built 1934 Load: 35.1 t ADT: 856

N-3

Good

Over: BR OF LIT BLACK RV

S 7 T 22 N R 4 E, Ripley, MO

Built 1999 Load: 36.0 t ADT: 50

142E-46

Good

Over: DRAIN DTCH NO 3

S 13 T 22 N R 4 E, Ripley, MO

Built 2011 Load: 36.0 t ADT: 100

RT Y S

Good

Over: ISAACS CR

S 9 T 23 N R 2 E, Ripley, MO

Built 1965 Load: 36.0 t ADT: 1,007

MO 21 S

Good

Over: S PRONG LIT BLACK

S 11 T 24 N R 2 E, Ripley, MO

Built 2000 Load: 36.9 t ADT: 1,533

RT B S

Good

Over: BUZZARD CR

S 34 T 23 N R 4 E, Ripley, MO

Built 2011 Load: 39.6 t ADT: 822

COUNTY RD U-5

Good

Over: WELLS CR

S 24 T 22 N R 2 E, Ripley, MO

Built 2020 Load: 40.5 t ADT: 50

MO 142 E

Good

Over: MILL CR

S 8 T 22 N R 1 W, Ripley, MO

Built 2023 Load: 40.5 t ADT: 434

MO 142 E

Good

Over: MID FK FOURCHE CR

S 11 T 22 N R 1 W, Ripley, MO

Built 2002 Load: 41.4 t ADT: 1,012

142E-20

Good

Over: CREEK

S 31 T 23 N R 3 E, Ripley, MO

Built 2007 Load: 45.9 t ADT: 109

MO 142 E

Good

Over: DRAINAGE DITCH NO

S 12 T 22 N R 4 E, Ripley, MO

Built 2002 Load: 46.8 t ADT: 1,179

MO 142 E

Good

Over: SPRING BLUFF CR

S 26 T 23 N R 2 E, Ripley, MO

Built 1971 Load: 66.6 t ADT: 2,792

US 160 E

Good

Over: CYPRESS CR

S 1 T 23 N R 3 E, Ripley, MO

Built 1974 Load: 71.1 t ADT: 4,766

MO 142 E

Good

Over: CYPRESS DITCH

S 11 T 22 N R 4 E, Ripley, MO

Built 2002 Load: 72.9 t ADT: 1,179

A-6

Good

Over: EAGEN CR

S 26 T 22 N R 2 E, Ripley, MO

Built 2015 Load: 77.4 t ADT: 15

JOE RUSH BR EE2

Good

Over: FOURCHE CR

S 22 T 22 N R 1 E, Ripley, MO

Built 1994 Load: 99.9 t ADT: 25

RT NN S

Good

Over: LITTLE BLACK RIVER

S 36 T 25 N R 2 W, Ripley, MO

Built 2008 Load: 99.9 t ADT: 105

COUNTY RD A6

Good

Over: GLAZE CR

S 35 T 22 N R 2 E, Ripley, MO

Built 2015 Load: 99.9 t ADT: 10

MO 21 S

Good

Over: MULBERRY CR

S 5 T 22 N R 2 E, Ripley, MO

Built 1930 Load: 99.9 t ADT: 835

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.