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Missouri Bridge Conditions

Highway bridges longer than 20 feet in the 2025 National Bridge Inventory

Yearly inspection ratings. A poor rating does not mean a bridge is unsafe to use.

Highway bridges
24,647
Good condition
37.2%
9,180
Poor condition
8.8%
2,163
Weight-limited or closed
3,409

Bridges by county

CountyBridgesGoodPoorWeight-limitedAvg. year built
Adair County30161.5%5.6% (17)281993
Andrew County16238.3%11.7% (19)211986
Atchison County19055.8%7.4% (14)91985
Audrain County31542.2%4.1% (13)71988
Barry County16724%15% (25)211974
Barton County21042.4%10% (21)301977
Bates County32018.1%10.6% (34)291977
Benton County13411.2%20.9% (28)301964
Bollinger County12431.5%13.7% (17)241963
Boone County33549.9%3.6% (12)391985
Buchanan County24631.7%7.7% (19)471981
Butler County22951.1%7.4% (17)241983
Caldwell County21140.3%10.4% (22)301975
Callaway County30537%6.2% (19)151979
Camden County9246.7%7.6% (7)91988
Cape Girardeau County37136.9%3.5% (13)431979
Carroll County37429.1%17.4% (65)1011976
Carter County4827.1%4.2% (2)21972
Cass County37837.3%8.2% (31)901983
Cedar County11225%23.2% (26)491968
Chariton County28856.6%9% (26)301977
Christian County12341.5%8.1% (10)141979
Clark County17739%7.3% (13)101986
Clay County44435.1%7.2% (32)901980
Clinton County15333.3%7.8% (12)61983
Cole County22726.4%9.3% (21)31982
Cooper County19350.3%3.1% (6)111985
Crawford County11926.1%6.7% (8)81971
Dade County16036.9%5% (8)181972
Dallas County11424.6%9.6% (11)61973
Daviess County21729%22.1% (48)371971
DeKalb County23832.8%6.7% (16)41985
Dent County7621.1%7.9% (6)41970
Douglas County7521.3%6.7% (5)111963
Dunklin County21743.3%8.3% (18)261978
Franklin County32939.5%4% (13)241989
Gasconade County14331.5%6.3% (9)201972
Gentry County24752.6%13.4% (33)181992
Greene County49844%5.2% (26)521979
Grundy County18555.7%9.7% (18)71993
Harrison County33139.6%22.4% (74)531981
Henry County26530.9%12.1% (32)221980
Hickory County5738.6%17.5% (10)81968
Holt County17039.4%14.7% (25)301976
Howard County13442.5%7.5% (10)91981
Howell County19036.3%1.6% (3)191968
Iron County12629.4%10.3% (13)181963
Jackson County93039.8%5.7% (53)1621982
Jasper County47237.9%12.1% (57)221978
Jefferson County41034.9%2.4% (10)481983
Johnson County47534.9%6.9% (33)471975
Knox County16735.3%5.4% (9)181988
Laclede County11933.6%9.2% (11)111973
Lafayette County23932.2%4.2% (10)81981
Lawrence County23145%11.7% (27)491971
Lewis County17226.7%5.8% (10)101991
Lincoln County18938.6%4.2% (8)171988
Linn County31338%17.9% (56)341980
Livingston County18537.8%9.7% (18)311979
Macon County29143.6%6.9% (20)221987
Madison County11733.3%18.8% (22)131965
Maries County6931.9%14.5% (10)91974
Marion County18637.1%9.1% (17)231978
McDonald County14523.4%12.4% (18)251976
Mercer County13545.9%17% (23)341978
Miller County14237.3%11.3% (16)171972
Mississippi County9927.3%10.1% (10)171969
Moniteau County9328%12.9% (12)231964
Monroe County17528%13.1% (23)411975
Montgomery County16429.9%7.3% (12)241980
Morgan County10729%15% (16)171965
New Madrid County28353%4.6% (13)191987
Newton County30339.6%6.3% (19)481979
Nodaway County39847.2%15.3% (61)271993
Oregon County8422.6%8.3% (7)131957
Osage County9938.4%17.2% (17)151971
Ozark County8219.5%3.7% (3)91968
Pemiscot County20734.8%9.2% (19)291981
Perry County12228.7%17.2% (21)231966
Pettis County24445.9%9% (22)371977
Phelps County15628.8%7.7% (12)161968
Pike County22433.9%7.6% (17)261982
Platte County28736.6%6.6% (19)511987
Polk County18434.2%17.4% (32)301969
Pulaski County10421.2%9.6% (10)171975
Putnam County21450.9%15% (32)371987
Ralls County13628.7%8.1% (11)171977
Randolph County16354.6%3.7% (6)191984
Ray County18433.7%12% (22)371978
Reynolds County9322.6%7.5% (7)171967
Ripley County11734.2%6% (7)241966
Saline County22932.3%15.7% (36)361977
Schuyler County12060.8%4.2% (5)71989
Scotland County19836.9%4% (8)21996
Scott County18438.6%8.2% (15)231978
Shannon County6426.6%10.9% (7)71962
Shelby County10630.2%10.4% (11)151980
St. Charles County41932.9%2.9% (12)181995
St. Clair County13925.9%19.4% (27)231973
St. Francois County16533.9%11.5% (19)101969
St. Louis city23932.6%9.2% (22)771983
St. Louis County90630%5% (45)2971987
Ste. Genevieve County10437.5%10.6% (11)101972
Stoddard County43643.1%4.1% (18)661976
Stone County6338.1%6.3% (4)71983
Sullivan County22156.1%7.2% (16)61990
Taney County15131.1%8.6% (13)171986
Texas County16528.5%7.3% (12)231964
Vernon County40436.4%3.7% (15)181989
Warren County15130.5%6% (9)111987
Washington County15630.8%10.9% (17)181967
Wayne County19729.9%5.1% (10)421968
Webster County18945.5%8.5% (16)71983
Worth County8148.1%18.5% (15)71984
Wright County13122.1%11.5% (15)121965

Frequently asked questions

How many bridges in Missouri are in poor condition?
In the 2025 National Bridge Inventory, 2,163 of 24,647 highway bridges in Missouri were rated poor (8.8% of rated bridges).
Which Missouri counties have the most bridges in poor condition?
Among counties with at least 30 bridges, the highest shares rated poor are Cedar County (23.2%), Harrison County (22.4%), Daviess County (22.1%), Benton County (20.9%), St. Clair County (19.4%).

Source: Federal Highway Administration, National Bridge Inventory ยท 2025 data