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Bridge conditions in Hardin County, Iowa

241 inventoried bridges · 69 rated poor · 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled

Of the 241 Hardin County bridges in the federal inventory, 69 carry a poor rating. That 28.6% share is roughly 4x the national average.

Good 36.1% · Fair 35.3% · Poor 28.6% of 241 bridges

Bridges rated poor

Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.

BridgeBuiltVehicles/dayCondition
South Ave over Iowa River19571,041Poor
Hwy 215 over Small Natural Stream1947854Poor
Hwy 215 over Small Natural Stream1948854Poor
FM over Dd1971776Poor
FM over Tipton CR1974687Poor
FM over Minerva Creek1972550Poor
FM over Elk Creek1964491Poor
FM over Creek1960462Poor
FM over Honey Creek1967373Poor
FM over Creek1900373Poor
FM over South Fork Iowa River1964373Poor
FM over Beaver Creek1967334Poor
FM over Tipton Creek1900334Poor
Local over Creek1972275Poor
FM over Creek1942255Poor
Co. Rd. D-35 over Beaver Creek1960250Poor
FM over Creek1970177Poor
FM over Creek1973108Poor
Local over Creek197891Poor
Local over Honey Creek198473Poor
FM over Creek197773Poor
Local over Drainage Ditch197873Poor
Local over Creek196069Poor
Local over Iowa River (south Fork)199762Poor
Local over Creek199062Poor
FM over Honey Creek198559Poor
Local over Tipton Creek198351Poor
Local over Beaver Creek198751Poor
Local over South Fork Iowa River198251Poor
FM over Bear Creek199644Poor
FM over South Fork Iowa River195444Poor
FM over South Fork Iowa River190044Poor
Local over Creek198341Poor
Local over Dd192541Poor
Local over Dd190041Poor
FM over Creek198839Poor
Local over Beaver Creek198439Poor
Local over South Fork Iowa River193939Poor
Local over Tipton Creek198935Poor
FM over Creek196034Poor
Local over Minerva Creek198430Poor
Local over Tipton Creek198430Poor
Local over Honey Creek198830Poor
Local over Honey Creek198229Poor
Local over Beaver Creek198529Poor
Local over Iowa River (south Fork)195629Poor
Local over South Fork191929Poor
Local over Creek198626Poor
Local over Honey Creek198626Poor
Local over Tilton Creek198126Poor
Local over Drainage197626Poor
FM over Dd196325Poor
Local over Honey Creek195321Poor
Local over Honey Creek198021Poor
Local over Creek199121Poor
Local over Small Stream198720Poor
Local over Tipton Creek190020Poor
Local over Tipton Creek198520Poor
Local over Stream198116Poor
Local over Honey Creek191916Poor
Local over Creek197716Poor
Local over Creek198916Poor
Local over Honey Creek196316Poor
Local over Tipton Creek198716Poor
Local over Beaver Creek195815Poor
FM over Beaver Creek198215Poor
Local over Creek197815Poor
Local over Ia River196511Poor
FM over Creek19855Poor

Busiest bridges in the county

BridgeBuiltVehicles/dayCondition
US 20 over Drainage20039,800Good
US 20 over Drainage20039,200Good
US 20 over Iowa River20039,200Good
US 65 over Iowa River20117,800Good
Washington St over Iowa River19346,251Fair
US 65 over Beaver Creek19765,300Good
US 20 EB over D 35 (elm St)20034,900Fair
US 20 WB over D 35 (elm St)20034,900Good
US 20 EB over Beaver Creek20034,850Good
US 20 WB over Beaver Creek20034,850Good

Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.

All of Iowa: Iowa bridge conditions by county · every download on the data page.

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