Total bridges
214
Public highway bridges in Dunklin County
County profile · official public datasets
Dunklin County, MO
214 public highway bridges tracked in the FHWA National Bridge Inventory: 43% rated Good, 50.5% Fair, 6.5% Poor.
- 214
- Public bridges
- 43%
- Good condition
- 6.5%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Dunklin County posts a better-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.
- Top 30%
- lowest Poor share in state
- 6.5%
- Poor-condition share
- 214
- 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.
Dunklin County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Dunklin County ranks #35 of 115 Missouri counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 6.5%). Dunklin County, Missouri contains 214 public highway bridges. Roughly 43% are rated “Good,” 50.5% “Fair,” and 6.5% “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
43%
92 of 214 rated 7-9
Fair condition
50.5%
108 of 214 rated 5-6
Poor condition
6.5%
14 of 214 rated 4 or below
In-state Poor-share rank
#35 of 115
Among Missouri counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 214 NBI-tracked bridges by lowest applicable component rating.
Good 43% (92)
Fair 50.5% (108)
Poor 6.5% (14)
Dunklin County's Poor-condition bridges carry 19,655 vehicle crossings a day
That is 7.1% of the county's reported daily bridge traffic on 6.5% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 1,404 crossings a day against 1,081 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 214 of 214 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
36% of Dunklin County's bridges have passed the 50-year mark
77 of the 214 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 43% 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 24.8% of the county's Poor-condition bridge traffic
MO 53 S over DRAIN DTCH NO 2, built 1939, carries 4,879 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 14-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 19,655 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Dunklin County's bridges were built
214 bridges with a recorded construction year, grouped by decade
- 1900s 7
1900–1909
7 bridges
- 1920s 9
1920–1929
9 bridges
- 1930s 13
1930–1939
13 bridges
- 1940s 12
1940–1949
12 bridges
- 1950s 12
1950–1959
12 bridges
- 1960s
1960–1969
21 bridges
- 1970s 15
1970–1979
15 bridges
- 1980s
1980–1989
43 bridges
- 1990s
1990–1999
35 bridges
- 2000s
2000–2009
25 bridges
- 2010s
2010–2019
19 bridges
- 2020s 3
2020–2029
3 bridges
What this shows Construction peaked in the 1980s, when 43 of the county's bridges still in the inventory were built, which is 20.1% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1977) matches the Missouri average (1979).
How Dunklin County compares with Missouri's closest counties by inventory size
The 5 Missouri counties nearest Dunklin County in number of bridges, with their condition splits. Its 6.5% Poor share is the 1st-lowest of these 6. Its average build year of 1977 against a peer-group mean of 1977 is in line with the group.
Showing the 5 closest of 114 Missouri counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Daviess County | 222 | 27.5% | 48.2% | 24.3% | 1970 |
| Dunklin County (this page) | 214 | 43% | 50.5% | 6.5% | 1977 |
| Putnam County | 213 | 48.8% | 35.7% | 15.5% | 1985 |
| Barton County | 211 | 42.2% | 47.9% | 10% | 1977 |
| Caldwell County | 208 | 39.9% | 49.5% | 10.6% | 1975 |
| Pemiscot County | 206 | 34.5% | 56.3% | 9.2% | 1980 |
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 Dunklin 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 Dunklin County, both outside Missouri so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside MO (214 bridges here).
- Lee County, AL · 214 bridges
- White County, IL · 214 bridges
- White County, IN · 214 bridges
- Lee County, IA · 214 bridges
Similar average build year
Nearest mean year-built outside MO (1977 here).
- San Diego County, CA · avg 1977 · 1,632 bridges
- King County, WA · avg 1977 · 1,238 bridges
- Riverside County, CA · avg 1977 · 1,117 bridges
- Shelby County, TN · avg 1977 · 1,077 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (214)
US 412 W
FairOver: DRAIN DTCH NO 1
S 4 T 18 N R 10 E, Dunklin, MO
Built 1965 Load: 25.2 t ADT: 4,828
COUNTY RD 410
FairOver: DRAIN DTCH
S 29 T 20 N R 10 E, Dunklin, MO
Built 1981 Load: 25.2 t ADT: 100
COUNTY RD # 403
FairOver: DRAIN DTCH
S 33 T 19 N R 9 E, Dunklin, MO
Built 1993 Load: 25.2 t ADT: 100
RT H S
FairOver: DRAIN DTCH
S 17 T 22 N R 9 E, Dunklin, MO
Built 1947 Load: 27.0 t ADT: 589
US 412 E
FairOver: POLE CAT SLU
S 1 T 17 N R 8 E, Dunklin, MO
Built 1963 Load: 27.0 t ADT: 6,287
RT BB E
FairOver: ST FRANCIS RVR
S 10 T 20 N R 9 E, Dunklin, MO
Built 1964 Load: 27.9 t ADT: 573
MO 164 E
FairOver: CYPRESS DRAIN DTCH
S 4 T 16 N R 8 E, Dunklin, MO
Built 1929 Load: 28.8 t ADT: 1,222
COUNTY RD # 422
FairOver: DRAIN DTCH
S 5 T 19 N R 10 E, Dunklin, MO
Built 1977 Load: 29.7 t ADT: 100
COUNTY RD # 426
FairOver: DRAIN DTCH
S 15 T 19 N R 10 E, Dunklin, MO
Built 1998 Load: 29.7 t ADT: 50
COUNTY RD # 442
FairOver: DRAIN DTCH NO 19
S 24 T 19 N R 10 E, Dunklin, MO
Built 1978 Load: 29.7 t ADT: 100
MO 164 E
FairOver: DRAIN DTCH NO 1
S 22 T 17 N R 9 E, Dunklin, MO
Built 1969 Load: 30.6 t ADT: 1,869
US 412 W
FairOver: DRAIN DTCH NO 81
S 4 T 18 N R 10 E, Dunklin, MO
Built 1965 Load: 31.5 t ADT: 4,828
MO 164 E
FairOver: DRAIN DTCH 66 & 25
S 22 T 17 N R 9 E, Dunklin, MO
Built 1969 Load: 31.5 t ADT: 1,869
US 412 E
FairOver: HONEY CYPRESS DTCH
S 21 T 17 N R 8 E, Dunklin, MO
Built 1966 Load: 32.4 t ADT: 5,156
COUNTY RD # 721
FairOver: DRAIN DTCH
S 32 T 16 N R 10 E, Dunklin, MO
Built 1990 Load: 32.4 t ADT: 50
COUNTY RD # 568
FairOver: DRAIN DTCH
S 24 T 17 N R 8 E, Dunklin, MO
Built 1989 Load: 32.4 t ADT: 35
COUNTY RD # 631
FairOver: DRAIN DTCH
S 9 T 16 N R 8 E, Dunklin, MO
Built 1999 Load: 32.4 t ADT: 100
COUNTY RD # 620
FairOver: DRAIN DTCH
S 7 T 16 N R 8 E, Dunklin, MO
Built 1989 Load: 32.4 t ADT: 100
MO 84 E
FairOver: ST FRANCIS RVR
S 6 T 18 N R 9 E, Dunklin, MO
Built 1981 Load: 32.4 t ADT: 3,427
US 412 E
FairOver: POLE CAT SLU
S 12 T 17 N R 8 E, Dunklin, MO
Built 1966 Load: 32.4 t ADT: 5,768
US 412 W
FairOver: DRAIN DTCH NO 19
S 6 T 18 N R 10 E, Dunklin, MO
Built 1959 Load: 33.3 t ADT: 6,570
COUNTY RD 322
FairOver: DRAIN DTCH
S 19 T 21 N R 10 E, Dunklin, MO
Built 1981 Load: 34.2 t ADT: 100
COUNTY RD # 426
FairOver: DRAIN DTCH
S 8 T 19 N R 10 E, Dunklin, MO
Built 1979 Load: 34.2 t ADT: 100
COUNTY RD # 502
FairOver: DRAIN DTCH
S 12 T 18 N R 9 E, Dunklin, MO
Built 1979 Load: 34.2 t ADT: 10
MO 164 E
FairOver: DRAIN DTCH NO 81
S 22 T 17 N R 9 E, Dunklin, MO
Built 1969 Load: 34.2 t ADT: 1,869
MO 164 E
FairOver: DRAIN DTCH NO 259
S 22 T 17 N R 9 E, Dunklin, MO
Built 1969 Load: 34.2 t ADT: 1,869
COUNTY RD # 522
FairOver: DRAIN DTCH
S 24 T 18 N R 9 E, Dunklin, MO
Built 1977 Load: 34.2 t ADT: 100
RT AC S
FairOver: LATERAL DTCH NO 3
S 17 T 16 N R 7 E, Dunklin, MO
Built 1959 Load: 34.2 t ADT: 1,979
COUNTY RD # 422
FairOver: DRAIN DTCH
S 3 T 19 N R 10 E, Dunklin, MO
Built 1982 Load: 36.0 t ADT: 100
COUNTY RD # 430
FairOver: DRAIN DTCH
S 7 T 19 N R 10 E, Dunklin, MO
Built 1977 Load: 36.0 t ADT: 100
COUNTY RD # 434
FairOver: DRAIN DTCH
S 20 T 19 N R 10 E, Dunklin, MO
Built 1979 Load: 36.0 t ADT: 100
RT NN S
FairOver: DRAIN DTCH NO 78
S 22 T 18 N R 10 E, Dunklin, MO
Built 2001 Load: 36.9 t ADT: 2,188
COUNTY RD 316
FairOver: DRAIN DTCH
S 18 T 21 N R 10 E, Dunklin, MO
Built 1980 Load: 36.9 t ADT: 100
COUNTY RD # 729
FairOver: DRAIN DTCH
S 15 T 18 N R 10 E, Dunklin, MO
Built 1981 Load: 36.9 t ADT: 100
RT WW S
FairOver: CR
S 34 T 22 N R 9 E, Dunklin, MO
Built 1956 Load: 36.9 t ADT: 1,312
RT VV E
FairOver: DRAIN DTCH NO 24
S 2 T 18 N R 9 E, Dunklin, MO
Built 1948 Load: 37.8 t ADT: 2,433
MO 164 E
FairOver: KINNAMORE DTCH
S 2 T 16 N R 7 E, Dunklin, MO
Built 2000 Load: 38.7 t ADT: 802
COUNTY RD # 729
FairOver: DRAIN DTCH
S 3 T 18 N R 10 E, Dunklin, MO
Built 1981 Load: 38.7 t ADT: 100
COUNTY RD #122
FairOver: DRAIN DTCH
S 6 T 22 N R 10 E, Dunklin, MO
Built 1992 Load: 39.6 t ADT: 100
COUNTY RD # 430
FairOver: DRAIN DTCH
S 14 T 19 N R 9 E, Dunklin, MO
Built 1992 Load: 39.6 t ADT: 100
US 412 W
FairOver: DRAIN DTCH NO 36
S 5 T 18 N R 10 E, Dunklin, MO
Built 1959 Load: 41.4 t ADT: 5,252
US 412 E
FairOver: RAGALIN SLU
S 15 T 18 N R 9 E, Dunklin, MO
Built 1963 Load: 42.3 t ADT: 6,129
US 412 E
FairOver: DRAIN DTCH NO 81
S 4 T 18 N R 10 E, Dunklin, MO
Built 2003 Load: 43.2 t ADT: 4,921
US 412 E
FairOver: BUFFALO DRAIN DTCH
S 1 T 18 N R 9 E, Dunklin, MO
Built 1948 Load: 43.2 t ADT: 9,424
RT J E
FairOver: DRAIN DTCH NO 1
S 12 T 22 N R 9 E, Dunklin, MO
Built 1992 Load: 45.9 t ADT: 1,806
COUNTY RD 326
FairOver: DRAIN DTCH
S 26 T 21 N R 9 E, Dunklin, MO
Built 1992 Load: 46.8 t ADT: 100
RT P E
FairOver: KINNAMORE DTCH
S 17 T 17 N R 8 E, Dunklin, MO
Built 2011 Load: 46.8 t ADT: 147
MO 164 E
FairOver: COLE DTCH
S 6 T 16 N R 9 E, Dunklin, MO
Built 1988 Load: 46.8 t ADT: 1,039
US 62 E
FairOver: TURKEY CR
S 8 T 21 N R 9 E, Dunklin, MO
Built 1930 Load: 46.8 t ADT: 1,159
RT Y S
FairOver: BUFFALO DITCH
S 27 T 18 N R 9 E, Dunklin, MO
Built 2013 Load: 49.5 t ADT: 1,402
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.