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Ohio bridge conditions

26,713 inventoried bridges · 1,266 rated poor · county by county

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled

The worst bridge in Ohio?

By the measure that matters most - the most traffic on a poor rating - it is Ir 480 over CR 8 (lee Rd) in Cuyahoga County, built 1971, carrying about 142,337 vehicles a day. That is a repair-priority flag, not a collapse warning: what a poor rating does and does not mean. See the worst bridge in every state.

Good 60.8% · Fair 34.5% · Poor 4.7% of 26,713 bridges

Bridge conditions by county

Sorted by the number of poor-rated bridges. Click any county for its full bridge list.

CountyBridgesRated poorPoor %
Cuyahoga County869819.3%
Preble County3633910.7%
Guernsey County353349.6%
Washington County3063411.1%
Allen County364339.1%
Muskingum County364339.1%
Trumbull County382328.4%
Licking County432306.9%
Ross County355298.2%
Franklin County920272.9%
Morrow County2502610.4%
Clermont County317247.6%
Jackson County254249.4%
Wayne County391246.1%
Wood County508234.5%
Hamilton County782222.8%
Lawrence County248228.9%
Lorain County370225.9%
Fairfield County322216.5%
Huron County311216.8%
Harrison County1382014.5%
Jefferson County226208.8%
Stark County416204.8%
Mahoning County348195.5%
Monroe County1691911.2%
Miami County312185.8%
Montgomery County633182.8%
Noble County208188.7%
Portage County217188.3%
Richland County358185.0%
Vinton County181189.9%
Warren County338185.3%
Madison County200178.5%
Scioto County374174.5%
Athens County305165.2%
Belmont County311165.1%
Henry County264166.1%
Lake County211167.6%
Butler County377154.0%
Coshocton County185158.1%
Hardin County277155.4%
Knox County275134.7%
Pike County243135.3%
Columbiana County324123.7%
Gallia County237125.1%
Summit County559122.1%
Greene County344113.2%
Paulding County177116.2%
Ashtabula County304103.3%
Adams County18494.9%
Delaware County26693.4%
Lucas County41792.2%
Marion County23093.9%
Tuscarawas County33792.7%
Geauga County13885.8%
Holmes County20883.8%
Sandusky County30382.6%
Union County22183.6%
Williams County24183.3%
Ashland County28372.5%
Brown County22273.2%
Carroll County12575.6%
Crawford County22173.2%
Pickaway County22373.1%
Medina County25272.8%
Morgan County15974.4%
Putnam County21273.3%
Fayette County24052.1%
Highland County24552.0%
Meigs County20752.4%
Mercer County32751.5%
Shelby County27451.8%
Erie County22641.8%
Hancock County35741.1%
Perry County17542.3%
Seneca County27841.4%
Fulton County19631.5%
Logan County28331.1%
Ottawa County16031.9%
Wyandot County23531.3%
Champaign County19321.0%
Darke County46320.4%
Hocking County29520.7%
Auglaize County32110.3%
Clark County34010.3%
Clinton County20710.5%
Defiance County15910.6%
Van Wert County31800.0%

The 25 busiest poor-rated bridges in Ohio

BridgeCountyBuiltVehicles/dayCondition
Ir 480 over CR 8 (lee Rd)Cuyahoga County, OH1971142,337Poor
Ir 90 over Rocky River ValleyCuyahoga County, OH1971106,617Poor
270WB to 71SB over Ramp 71nb-270wbFranklin County, OH1966104,140Poor
I75 Ramp over Dicks CreekWarren County, OH196091,260Poor
Ir 75 over Tributary Mill CreekHamilton County, OH196091,244Poor
Ramp SW From I-71 over Ir 480 MainlineCuyahoga County, OH198077,220Poor
Ir 670 over Scioto R USR33 RRFranklin County, OH197275,912Poor
Tpk Exit 161 Ramp over Ir 71Cuyahoga County, OH196674,360Poor
NB Ir 75 over Mill Cr;benson St;nsrr;sHamilton County, OH196567,075Poor
I-70 over Ir 70W over Scioto RiverFranklin County, OH197561,022Poor
Ir 77 over US-422 WB (cuy-422-0125)Cuyahoga County, OH196259,893Poor
Ir 77 over E 22 StCuyahoga County, OH196259,893Poor
Ir 77 over E 14TH StCuyahoga County, OH196259,893Poor
I-270 over S Indian RunFranklin County, OH196857,982Poor
Ir 90 EB over UP Ir 71-1887 Dn 71 R SWCuyahoga County, OH196750,525Poor
SR 104 over NS RRFranklin County, OH198748,060Poor
Ir 480 WB over Up480-es&wn Dn77-sw&neCuyahoga County, OH197344,715Poor
Ir 480 E.B. over UP 480-es&wn Dn 77-sw&neCuyahoga County, OH197344,715Poor
Western Hills Viad over Mill Creek State SprinHamilton County, OH193143,788Poor
SR 104 over Scioto RiverFranklin County, OH197243,411Poor
Warren Road Cr-66 over Ir-90 (warren)Cuyahoga County, OH197641,217Poor
Winton Road over Winton Woods Park DriveHamilton County, OH196940,186Poor
WB Ir 74 over CR 184;TRIB Taylor CreekHamilton County, OH196436,784Poor
WB Ir 275 over CR 299(LOVELAND Rd);ioryHamilton County, OH197035,701Poor
EB Ir 275 over CR 299(LOVELAND Rd);ioryHamilton County, OH197035,701Poor

Frequently asked questions

How many bridges in Ohio are in poor condition?

1,266 of Ohio's 26,713 inventoried highway bridges are rated in poor condition (4.7%) in the 2025 National Bridge Inventory. 'Poor' is FHWA's classification for a bridge whose deck, superstructure, or substructure is rated 4 or lower on the 0-9 scale; it was formerly called 'structurally deficient'.

Are the poor-rated bridges in Ohio safe to drive on?

A poor rating flags advanced deterioration that needs repair or close monitoring; it does not by itself mean a bridge is unsafe. Bridges judged unsafe are closed or restricted to lighter loads by the owner. Inspections continue on all open bridges, generally at least every 24 months under the National Bridge Inspection Standards.

Source: FHWA National Bridge Inventory, 2025 vintage, reported by the Ohio DOT.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.