Total bridges
124
Public highway bridges in Bollinger County
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.
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
- 1900s 4
1900–1909
4 bridges
- 1910s 3
1910–1919
3 bridges
- 1920s
1920–1929
24 bridges
- 1930s
1930–1939
18 bridges
- 1940s 4
1940–1949
4 bridges
- 1950s 8
1950–1959
8 bridges
- 1960s 7
1960–1969
7 bridges
- 1970s 9
1970–1979
9 bridges
- 1980s
1980–1989
11 bridges
- 1990s 8
1990–1999
8 bridges
- 2000s
2000–2009
11 bridges
- 2010s
2010–2019
12 bridges
- 2020s 5
2020–2029
5 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.
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.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Iron County | 126 | 30.2% | 60.3% | 9.5% | 1962 |
| Bollinger County (this page) | 124 | 30.6% | 54% | 15.3% | 1962 |
| Christian County | 121 | 41.3% | 51.2% | 7.4% | 1978 |
| Perry County | 120 | 27.5% | 55% | 17.5% | 1965 |
| Schuyler County | 120 | 65.8% | 30.8% | 3.3% | 1989 |
| Laclede County | 119 | 31.1% | 58.8% | 10.1% | 1971 |
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).
- Bannock County, ID · 124 bridges
- Breathitt County, KY · 124 bridges
- Caldwell County, LA · 124 bridges
- St. Mary County, LA · 124 bridges
Similar average build year
Nearest mean year-built outside MO (1962 here).
- Berks County, PA · avg 1962 · 667 bridges
- Pecos County, TX · avg 1962 · 470 bridges
- Bristol County, MA · avg 1962 · 384 bridges
- Norfolk County, MA · avg 1962 · 343 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Poor-condition bridges (19)
COUNTY RD 416
PoorOver: DRY CR
S 32 T 30 N R 10 E, Bollinger, MO
Built 1910 Load: 0.0 t ADT: 35
GLEN ALLEN
PoorOver: CROOKED CR
S 35 T 31 N R 9 E, Bollinger, MO
Built 1908 Load: 0.0 t ADT: 100
COUNTY RD 714
PoorOver: SLAGLE CR
S 18 T 29 N R 9 E, Bollinger, MO
Built 1925 Load: 2.7 t ADT: 50
COUNTY RD 524
PoorOver: CANE CR
S 7 T 29 N R 10 E, Bollinger, MO
Built 1922 Load: 6.3 t ADT: 35
COUNTY RD 234
PoorOver: BR OF WHITEWATER C
S 19 T 33 N R 11 E, Bollinger, MO
Built 1920 Load: 7.2 t ADT: 35
COUNTY RD 532
PoorOver: VIRGIN CR
S 15 T 29 N R 9 E, Bollinger, MO
Built 1924 Load: 8.1 t ADT: 35
COUNTY RD 534
PoorOver: HAWKER CR
S 16 T 29 N R 9 E, Bollinger, MO
Built 1925 Load: 9.0 t ADT: 35
COUNTY RD 720
PoorOver: SLAGLE CR
S 19 T 29 N R 9 E, Bollinger, MO
Built 1994 Load: 9.9 t ADT: 35
COUNTY RD 434
PoorOver: MALONE CR
S 12 T 29 N R 10 E, Bollinger, MO
Built 1930 Load: 11.7 t ADT: 35
RT ZZ E
PoorOver: LIT CROOKED CR
S 34 T 31 N R 9 E, Bollinger, MO
Built 1961 Load: 12.6 t ADT: 417
COUNTY RD 906
PoorOver: LIT WHITEWATER CR
S 16 T 33 N R 9 E, Bollinger, MO
Built 1928 Load: 13.5 t ADT: 35
COUNTY RD 930
PoorOver: CONRAD CR
S 5 T 33 N R 9 E, Bollinger, MO
Built 1920 Load: 14.4 t ADT: 35
CITY ST 234
PoorOver: WHITEWATER RVR
S 25 T 33 N R 10 E, Bollinger, MO
Built 1925 Load: 16.2 t ADT: 35
COUNTY RD 458
PoorOver: BR OF HOG CR
S 30 T 31 N R 11 E, Bollinger, MO
Built 1926 Load: 16.2 t ADT: 35
COUNTY RD 302
PoorOver: HURRICANE CR
S 33 T 31 N R 10 E, Bollinger, MO
Built 1906 Load: 16.2 t ADT: 35
COUNTY RD 448
PoorOver: BR OF CROOKED CR
S 16 T 30 N R 11 E, Bollinger, MO
Built 1933 Load: 16.2 t ADT: 35
COUNTY RD 874
PoorOver: CROOKED CR
S 32 T 33 N R 9 E, Bollinger, MO
Built 1931 Load: 16.2 t ADT: 35
COUNTY RD 236
PoorOver: WHITEWATER RVR
S 23 T 33 N R 10 E, Bollinger, MO
Built 1915 Load: 21.6 t ADT: 35
COUNTY RD 368
PoorOver: LIT WHITEWATER CR
S 24 T 32 N R 10 E, Bollinger, MO
Built 1935 Load: 22.5 t ADT: 35
Read our methodology - how this data is sourced, computed, and verified.
Related
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.