County profile · official public datasets

Bollinger County, MO

124 public highway bridges tracked in the FHWA National Bridge Inventory: 30.6% rated Good, 54% Fair, 15.3% Poor.

124
Public bridges
30.6%
Good condition
15.3%
Poor condition

The verdict

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

Bollinger County pairs a higher-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.

98th
of 115 on Poor share
15.3%
Poor-condition share
124
public highway bridges
1962
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.

Bollinger County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Bollinger County ranks #98 of 115 Missouri counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 15.3%). Bollinger County, Missouri contains 124 public highway bridges. Roughly 30.6% are rated “Good,” 54% “Fair,” and 15.3% “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

124

Public highway bridges in Bollinger County

Good condition

30.6%

38 of 124 rated 7-9

Fair condition

54%

67 of 124 rated 5-6

Poor condition

15.3%

19 of 124 rated 4 or below

In-state Poor-share rank

#98 of 115

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

Condition distribution

Share of 124 NBI-tracked bridges by lowest applicable component rating.

Good
30.6% (38)
Fair
54% (67)
Poor
15.3% (19)

Bollinger County's Poor-condition bridges carry 1,127 vehicle crossings a day

That is 1.4% of the county's reported daily bridge traffic on 15.3% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 59 crossings a day against 501 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 124 of 124 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

59.7% of Bollinger County's bridges have passed the 50-year mark

74 of the 124 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 30.6% 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 37% of the county's Poor-condition bridge traffic

RT ZZ E over LIT CROOKED CR, built 1961, carries 417 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 19-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 1,127 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Bollinger County's bridges were built

124 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1920s, when 24 of the county's bridges still in the inventory were built, which is 19.4% of those with a recorded year. That cohort is now 95 to 104 years old in the 2024 inventory. Its average build year is 1962, 17 years older than the Missouri average of 1979.

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

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

The 5 Missouri counties nearest Bollinger County in number of bridges, with their condition splits. Its 15.3% Poor share is the 5th-lowest of these 6. Its average build year of 1962 against a peer-group mean of 1973 is 11 years older.

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

Bridge inventory size and condition shares for Bollinger County and the 5 Missouri counties closest to it in inventory size
County Bridges Poor
Iron County 126 9.5%
Bollinger County (this page) 124 15.3%
Christian County 121 7.4%
Perry County 120 17.5%
Schuyler County 120 3.3%
Laclede County 119 10.1%

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

Similar inventory size

Nearest county inventories outside MO (124 bridges here).

Similar average build year

Nearest mean year-built outside MO (1962 here).

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

All 124 Good 38 Fair 67 Poor 19

All bridges (124)

RT A E

Fair

Over: CROOKED CR

S 17 T 32 N R 9 E, Bollinger, MO

Built 1931 Load: 32.4 t ADT: 518

RT E E

Fair

Over: BR OF BEAR CR

S 34 T 29 N R 8 E, Bollinger, MO

Built 1940 Load: 32.4 t ADT: 247

COUNTY RD 204

Fair

Over: BUCK CR

S 20 T 33 N R 10 E, Bollinger, MO

Built 1933 Load: 36.0 t ADT: 35

MO 51 S

Fair

Over: WHITEWATER RVR

S 781 T 33 N R 9 E, Bollinger, MO

Built 1986 Load: 36.0 t ADT: 1,580

MO 34 E

Fair

Over: CASTOR RVR

S 30 T 30 N R 8 W, Bollinger, MO

Built 1989 Load: 36.9 t ADT: 984

MO 34 E

Fair

Over: CASTOR RVR OVRFL

S 30 T 30 N R 8 W, Bollinger, MO

Built 1989 Load: 38.7 t ADT: 984

RT B S

Fair

Over: LITTLE WHITEWATER

S 809 T 32 N R 10 E, Bollinger, MO

Built 1985 Load: 40.5 t ADT: 514

COUNTY RD 320

Fair

Over: BR OF BIG BLUE RVR

S 6 T 31 N R 10 E, Bollinger, MO

Built 1995 Load: 41.4 t ADT: 100

MO 51 S

Fair

Over: OPOSSUM CR

S 7 T 30 N R 10 E, Bollinger, MO

Built 1992 Load: 42.3 t ADT: 2,447

RT PP S

Fair

Over: CHAMPIONS BR

S 26 T 30 N R 9 E, Bollinger, MO

Built 1960 Load: 42.3 t ADT: 94

RT H S

Fair

Over: PERKINS BR

S 36 T 30 N R 8 E, Bollinger, MO

Built 1961 Load: 45.0 t ADT: 174

CRD 506

Fair

Over: PERKINS CR

S 30 T 30 N R 9 E, Bollinger, MO

Built 2019 Load: 49.5 t ADT: 35

RT K S

Fair

Over: WOLF CR

S 35 T 33 N R 10 E, Bollinger, MO

Built 1935 Load: 50.4 t ADT: 1,143

MO 51 S

Fair

Over: BUCK CR

S 23 T 33 N R 9 E, Bollinger, MO

Built 1932 Load: 57.6 t ADT: 1,071

MO 34 E

Fair

Over: DRUNKEN CR

S 34 T 31 N R 10 E, Bollinger, MO

Built 1922 Load: 63.0 t ADT: 2,263

MO 51 S

Fair

Over: SCHRAWN CR

S 6 T 33 N R 10 E, Bollinger, MO

Built 1932 Load: 66.6 t ADT: 1,580

MO 72 E

Fair

Over: LIT MUDDY CR

S 3 T 32 N R 10 E, Bollinger, MO

Built 1992 Load: 99.0 t ADT: 2,871

COUNTY RD 364

Good

Over: YANTZ CR

S 6 T 32 N R 10 E, Bollinger, MO

Built 2006 Load: 10.8 t ADT: 35

COUNTY RD 200

Good

Over: BR OF WHITEWATER R

S 18 T 33 N R 10 E, Bollinger, MO

Built 1983 Load: 16.2 t ADT: 35

COUNTY RD 334

Good

Over: JAMES CR

S 32 T 32 N R 10 E, Bollinger, MO

Built 1975 Load: 16.2 t ADT: 35

COUNTY RD 614

Good

Over: BR OF CASTOR RVR

S 28 T 29 N R 9 E, Bollinger, MO

Built 1936 Load: 16.2 t ADT: 35

COUNTY RD 736

Good

Over: JESSE BR

S 21 T 29 N R 8 E, Bollinger, MO

Built 1983 Load: 16.2 t ADT: 35

COUNTY RD 836

Good

Over: INDIAN CR

S 4 T 31 N R 9 E, Bollinger, MO

Built 1983 Load: 16.2 t ADT: 35

RT ZZ E

Good

Over: LIT CROOKED CR

S 35 T 31 N R 9 E, Bollinger, MO

Built 1961 Load: 18.0 t ADT: 417

COUNTY RD 528

Good

Over: HAWKER CR

S 24 T 29 N R 9 E, Bollinger, MO

Built 1925 Load: 21.6 t ADT: 35

COUNTY RD 414

Good

Over: DRY CR

S 20 T 30 N R 10 E, Bollinger, MO

Built 1983 Load: 22.5 t ADT: 35

COUNTY RD 702

Good

Over: PERKINS CREEK FK

S 25 T 30 N R 8 E, Bollinger, MO

Built 1983 Load: 22.5 t ADT: 35

RT Y S

Good

Over: BR OF CASTOR RVR

S 33 T 30 N R 9 E, Bollinger, MO

Built 1953 Load: 24.3 t ADT: 96

RT Y S

Good

Over: BR OF CASTOR RVR

S 32 T 30 N R 8 E, Bollinger, MO

Built 1953 Load: 25.2 t ADT: 96

MO 72 E

Good

Over: LITTLE WHITEWATER

S 27 T 33 N R 9 E, Bollinger, MO

Built 2009 Load: 28.8 t ADT: 2,470

RT BB S

Good

Over: LIT RVR DTCH#11

S 20 T 28 N R 10 E, Bollinger, MO

Built 2011 Load: 31.5 t ADT: 940

COUNTY RD 428

Good

Over: DITCH NO. 8

S 36 T 29 N R 10 E, Bollinger, MO

Built 2002 Load: 32.4 t ADT: 40

COUNTY RD 654

Good

Over: DITCH

S 35 T 29 N R 10 E, Bollinger, MO

Built 2002 Load: 32.4 t ADT: 40

MO 72 E

Good

Over: BUCKSKIN BRANCH

S 28 T 33 N R 9 E, Bollinger, MO

Built 2006 Load: 32.4 t ADT: 2,470

COUNTY RD 424

Good

Over: DRAIN DTCH

S 35 T 29 N R 10 E, Bollinger, MO

Built 2004 Load: 32.4 t ADT: 35

COUNTY RD 634

Good

Over: CASTOR RVR

S 30 T 28 N R 10 E, Bollinger, MO

Built 2020 Load: 32.4 t ADT: 35

COUNTY RD 238

Good

Over: WHITEWATER RVR

S 17 T 33 N R 10 E, Bollinger, MO

Built 2011 Load: 33.3 t ADT: 35

RT V N

Good

Over: DRAIN DTCH NO 101

S 25 T 28 N R 9 E, Bollinger, MO

Built 2010 Load: 34.2 t ADT: 266

RT P E

Good

Over: BRUSH CR

S 19 T 28 N R 9 E, Bollinger, MO

Built 2020 Load: 34.2 t ADT: 412

MO 51 S

Good

Over: DRY CR

S 30 T 30 N R 10 E, Bollinger, MO

Built 2017 Load: 38.7 t ADT: 1,623

COUNTY RD 736

Good

Over: CASTOR RVR

S 28 T 29 N R 9 E, Bollinger, MO

Built 2003 Load: 39.6 t ADT: 100

COUNTY RD 408

Good

Over: CROOKED CR

S 13 T 30 N R 10 E, Bollinger, MO

Built 2005 Load: 39.6 t ADT: 100

RT BB S

Good

Over: LIT RVR DTCH #11

S 28 T 28 N R 10 E, Bollinger, MO

Built 2010 Load: 39.6 t ADT: 940

MO 51 S

Good

Over: E FK LONGS CR

S 10 T 32 N R 9 E, Bollinger, MO

Built 1922 Load: 39.6 t ADT: 797

MO 51 S

Good

Over: CASTOR RVR

S 29 T 29 N R 9 E, Bollinger, MO

Built 2020 Load: 40.5 t ADT: 829

MO 51 S

Good

Over: CASTOR RVR OVRFL

S 29 T 29 N R 9 E, Bollinger, MO

Built 2021 Load: 40.5 t ADT: 829

COUNTY RD 402

Good

Over: CROOKED CR

S 15 T 30 N R 10 E, Bollinger, MO

Built 1995 Load: 41.4 t ADT: 50

RT CC S

Good

Over: HURRICANE CR

S 19 T 31 N R 10 E, Bollinger, MO

Built 2017 Load: 41.4 t ADT: 270

RT B S

Good

Over: LIT MUDDY CR

S 11 T 32 N R 10 E, Bollinger, MO

Built 1963 Load: 41.4 t ADT: 514

MO 34 E

Good

Over: GIMLET CREEK

S 34 T 31 N R 9 E, Bollinger, MO

Built 2012 Load: 42.3 t ADT: 1,372

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.