Total bridges
930
Public highway bridges in Jackson County
County profile · official public datasets
Jackson County, MO
930 public highway bridges tracked in the FHWA National Bridge Inventory: 42.2% rated Good, 52.5% Fair, 5.4% Poor.
- 930
- Public bridges
- 42.2%
- Good condition
- 5.4%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Jackson County posts a top-quartile lowest Poor-condition share among rated counties in the state across large county bridge inventory.
- Top 23%
- lowest Poor share in state
- 5.4%
- Poor-condition share
- 930
- public highway bridges
- 1982
- 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.
Jackson County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Jackson County ranks #27 of 115 Missouri counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 5.4%). Jackson County, Missouri contains 930 public highway bridges. Roughly 42.2% are rated “Good,” 52.5% “Fair,” and 5.4% “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
42.2%
392 of 930 rated 7-9
Fair condition
52.5%
488 of 930 rated 5-6
Poor condition
5.4%
50 of 930 rated 4 or below
In-state Poor-share rank
#27 of 115
Among Missouri counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 930 NBI-tracked bridges by lowest applicable component rating.
Good 42.2% (392)
Fair 52.5% (488)
Poor 5.4% (50)
Jackson County's Poor-condition bridges carry 521,373 vehicle crossings a day
That is 3.5% of the county's reported daily bridge traffic on 5.4% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 10,427 crossings a day against 12,739 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 929 of 930 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
40.3% of Jackson County's bridges have passed the 50-year mark
375 of the 930 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 42.2% 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 18.1% of the county's Poor-condition bridge traffic
IS 435 S over GRAVE CR, built 1964, carries 94,457 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 50-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 521,373 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Jackson County's bridges were built
930 bridges with a recorded construction year, grouped by decade
- pre-1900 1
Built before 1900
1 bridges
- 1900s 10
1900–1909
10 bridges
- 1910s 10
1910–1919
10 bridges
- 1920s 14
1920–1929
14 bridges
- 1930s 23
1930–1939
23 bridges
- 1940s 21
1940–1949
21 bridges
- 1950s
1950–1959
75 bridges
- 1960s
1960–1969
163 bridges
- 1970s
1970–1979
101 bridges
- 1980s
1980–1989
102 bridges
- 1990s
1990–1999
129 bridges
- 2000s
2000–2009
156 bridges
- 2010s
2010–2019
84 bridges
- 2020s 41
2020–2029
41 bridges
What this shows Construction peaked in the 1960s, when 163 of the county's bridges still in the inventory were built, which is 17.5% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1982) matches the Missouri average (1979).
How Jackson County compares with Missouri's closest counties by inventory size
The 5 Missouri counties nearest Jackson County in number of bridges, with their condition splits. Its 5.4% Poor share is the 4th-lowest of these 6. Its average build year of 1982 against a peer-group mean of 1979 is in line with the group.
Showing the 5 closest of 114 Missouri counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Jackson County (this page) | 930 | 42.2% | 52.5% | 5.4% | 1982 |
| St. Louis County | 912 | 29.9% | 64.7% | 5.4% | 1987 |
| Greene County | 493 | 44.6% | 50.1% | 5.3% | 1978 |
| Johnson County | 476 | 39.3% | 56.3% | 4.4% | 1975 |
| Jasper County | 471 | 42% | 46.9% | 11% | 1978 |
| Clay County | 436 | 38.1% | 55% | 6.9% | 1979 |
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 Jackson 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 Jackson County, both outside Missouri so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside MO (930 bridges here).
- Hennepin County, MN · 936 bridges
- Franklin County, OH · 922 bridges
- Fresno County, CA · 916 bridges
- Erie County, NY · 906 bridges
Similar average build year
Nearest mean year-built outside MO (1982 here).
- Oklahoma County, OK · avg 1982 · 1,216 bridges
- Milwaukee County, WI · avg 1982 · 893 bridges
- Champaign County, IL · avg 1982 · 727 bridges
- Broward County, FL · avg 1982 · 686 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (488)
RP WYOMING ST TO I
FairOver: ONTO BR A-3136
S 6 T 49 N R 33 W, Jackson, MO
Built 1987 Load: 32.4 t ADT: 3,741
ANCHOR DR
FairOver: SPLWY LK TAPAWING
S 34 T 49 N R 31 W, Jackson, MO
Built 2001 Load: 32.4 t ADT: 160
ANDERSON DR
FairOver: MAY BROOOK CRK
S 31 T 49 N R 31 W, Jackson, MO
Built 2003 Load: 32.4 t ADT: 3,041
BITTERCREEK RD
FairOver: DRAINAGE DTCH
S 3 T 47 N R 31 W, Jackson, MO
Built 2003 Load: 32.4 t ADT: 100
LEE SUMMIT RD
FairOver: N FK LIT BLUE RVR
S 13 T 50 N R 32 W, Jackson, MO
Built 1970 Load: 32.4 t ADT: 1,500
INDEPENDENCE AVE
FairOver: BR INTO PRAIRIE LE
S 32 T 48 N R 31 W, Jackson, MO
Built 1996 Load: 32.4 t ADT: 6,500
140TH ST
FairOver: BR LIT BLUE RVR
S 25 T 47 N R 33 W, Jackson, MO
Built 2003 Load: 32.4 t ADT: 2,200
WESTERN ENTRANCE
FairOver: ADAIR CR
S 9 T 50 N R 31 W, Jackson, MO
Built 2004 Load: 32.4 t ADT: 100
COMMUNITY CENTER
FairOver: CITY LAKE
S 35 T 48 N R 31 W, Jackson, MO
Built 2003 Load: 32.4 t ADT: 200
BLACKWELL RD
FairOver: BR OF LIT BLUE
S 34 T 48 N R 31 W, Jackson, MO
Built 2003 Load: 32.4 t ADT: 3,500
ADAMS DIARY ST
FairOver: CREEK
S 32 T 49 N R 30 W, Jackson, MO
Built 2004 Load: 32.4 t ADT: 100,000
WINBURN TRAIL
FairOver: DRAIN DTCH
S 4 T 47 N R 31 W, Jackson, MO
Built 1970 Load: 32.4 t ADT: 1,000
3RD ST
FairOver: BR OF CEDAR CR
S 12 T 47 N R 32 W, Jackson, MO
Built 1960 Load: 32.4 t ADT: 15,000
LITTLE BLUE RD
FairOver: LIT BLUE RVR
S 11 T 48 N R 32 W, Jackson, MO
Built 2004 Load: 32.4 t ADT: 3,972
LIT BLUE PARKWAY
FairOver: N FK CRACKERNECK C
S 16 T 49 N R 31 W, Jackson, MO
Built 2008 Load: 32.4 t ADT: 24,000
TODD GEORGE PKWY
FairOver: TRIB TO PRAIRIE LE
S 28 T 48 N R 31 W, Jackson, MO
Built 2002 Load: 32.4 t ADT: 700
TODD GEORGE PKWY
FairOver: STREAM
S 21 T 48 N R 31 W, Jackson, MO
Built 2010 Load: 32.4 t ADT: 9,000
155TH ST
FairOver: SCOPE CR
S 3 T 46 N R 33 W, Jackson, MO
Built 1970 Load: 32.4 t ADT: 500
KENSINGTON AVE
FairOver: SCOPE CR
S 35 T 47 N R 33 W, Jackson, MO
Built 1995 Load: 32.4 t ADT: 500
IS 435 S
FairOver: BLUE RVR
S 33 T 48 N R 33 W, Jackson, MO
Built 1966 Load: 32.4 t ADT: 35,112
IS 435 N
FairOver: BLUE RVR
S 33 T 48 N R 33 W, Jackson, MO
Built 1966 Load: 32.4 t ADT: 72,825
US 40 E
FairOver: CST MANCHESTER TRFY
S 13 T 49 N R 33 W, Jackson, MO
Built 1960 Load: 32.4 t ADT: 8,994
IS 70 E
FairOver: SNI-A-BAR CR
S 36 T 49 N R 30 W, Jackson, MO
Built 1948 Load: 32.4 t ADT: 25,455
MO 291 S
FairOver: DRUMM FARM BR
S 18 T 49 N R 31 W, Jackson, MO
Built 1951 Load: 32.4 t ADT: 67,960
WALNUT ST S
FairOver: IS 35
S 32 T 50 N R 33 W, Jackson, MO
Built 1954 Load: 32.4 t ADT: 6,478
IS 70 W
FairOver: IS 29
S 32 T 50 N R 33 W, Jackson, MO
Built 1958 Load: 32.4 t ADT: 11,388
IS 70 W
FairOver: KCS RR
S 28 T 49 N R 31 W, Jackson, MO
Built 1963 Load: 32.4 t ADT: 54,779
IS 70 W
FairOver: MO 7
S 30 T 49 N R 30 W, Jackson, MO
Built 1963 Load: 32.4 t ADT: 41,103
IS 70 E
FairOver: MO 7
S 30 T 49 N R 30 W, Jackson, MO
Built 1963 Load: 32.4 t ADT: 48,634
IS 470 E
FairOver: KCS RR
S 36 T 48 N R 33 W, Jackson, MO
Built 1976 Load: 33.3 t ADT: 69,470
RAYTOWN RD S
FairOver: IS 470
S 32 T 48 N R 32 W, Jackson, MO
Built 1974 Load: 33.3 t ADT: 8,236
IS 470 W
FairOver: US 50 MO 350
S 36 T 48 N R 32 W, Jackson, MO
Built 1976 Load: 33.3 t ADT: 48,487
NW BLUE PKWY N
FairOver: IS 470 RP IS470W TO MO3
S 36 T 48 N R 32 W, Jackson, MO
Built 1979 Load: 33.3 t ADT: 1,663
56TH ST
FairOver: UP RR
S 35 T 48 N R 32 W, Jackson, MO
Built 1946 Load: 33.3 t ADT: 696
IS 70 E
FairOver: CST BENTON BLVD
S 3 T 49 N R 33 W, Jackson, MO
Built 1959 Load: 33.3 t ADT: 55,113
GRAND BLVD S
FairOver: IS 670
S 5 T 49 N R 33 W, Jackson, MO
Built 2016 Load: 33.3 t ADT: 5,406
IS 70 E
FairOver: US 40
S 13 T 49 N R 33 W, Jackson, MO
Built 1960 Load: 33.3 t ADT: 49,093
IS 70 W
FairOver: US 40
S 13 T 49 N R 33 W, Jackson, MO
Built 1960 Load: 33.3 t ADT: 52,132
MO 291 N
FairOver: US 50
S 8 T 47 N R 31 W, Jackson, MO
Built 1967 Load: 34.2 t ADT: 16,218
PETERSON RD
FairOver: BR.OF SNI-A-BAR CR
S 28 T 48 N R 29 W, Jackson, MO
Built 1978 Load: 34.2 t ADT: 19
US 24 E
FairOver: FIRE PRAIRIE CR
S 19 T 50 N R 29 W, Jackson, MO
Built 1973 Load: 34.2 t ADT: 2,101
US 71 N
FairOver: BLUE RVR CST E 85TH ST
S 22 T 48 N R 33 W, Jackson, MO
Built 1989 Load: 34.2 t ADT: 36,602
US 71 S
FairOver: CST BLUE RVR RD BNSF
S 22 T 48 N R 33 W, Jackson, MO
Built 1989 Load: 34.2 t ADT: 39,033
STADIUM DR E
FairOver: IS 70
S 19 T 49 N R 32 W, Jackson, MO
Built 1971 Load: 34.2 t ADT: 6,873
RP IS435N TO LANCE
FairOver: CST RAYTOWN RD
S 24 T 49 N R 33 W, Jackson, MO
Built 1972 Load: 34.2 t ADT: 3,787
J C NICHOLS PKWY
FairOver: BRUSH CR
S 29 T 49 N R 33 W, Jackson, MO
Built 1965 Load: 34.2 t ADT: 10,689
63RD TRFY
FairOver: SMALL CR
S 2 T 48 N R 33 W, Jackson, MO
Built 1930 Load: 34.2 t ADT: 14,808
IS 70 E
FairOver: CST WOODLAND AVE
S 4 T 49 N R 33 W, Jackson, MO
Built 1958 Load: 34.2 t ADT: 55,113
IS 70 W
FairOver: CST WOODLAND AVE
S 4 T 49 N R 33 W, Jackson, MO
Built 1958 Load: 34.2 t ADT: 57,043
RP IS670W TO WYOMI
FairOver: CST LIBERTY ST CST HICK
S 6 T 49 N R 33 W, Jackson, MO
Built 1984 Load: 34.2 t ADT: 3,227
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.