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Bridge conditions in Howard County, Iowa

212 inventoried bridges · 41 rated poor · 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Howard County has 41 bridges rated poor out of 212 inventoried, a 19.3% share that puts it well above the national rate of about 7%.

41 of the 212 bridges in Howard County, Iowa, are rated in poor condition (19.3%) in the 2025 National Bridge Inventory, as of August 20, 2026.
95 bridges (44.8%) are rated good and 76 (35.8%) fair.
The median Howard County bridge was built in 1988.
The busiest poor-rated bridge is Willow Ave over Bohemian Creek (built 1951), carrying about 1,420 vehicles a day.

Good 44.8% · Fair 35.8% · Poor 19.3% of 212 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.

Bridge	Built	Vehicles/day	Condition
Willow Ave over Bohemian Creek	1951	1,420	Poor
200TH St over Bohemian Creek	1951	730	Poor
Young Ave over Bohemian Creek	1951	717	Poor
Fm-150th St over Crane Creek	1968	590	Poor
Fm-150th St over Crane Creek	1968	579	Poor
FM 150TH St over Little Wapsipinicon	1967	452	Poor
Loc Victory Ave over Upper Iowa	1950	393	Poor
FM Victory Ave over Upper Iowa	1949	393	Poor
Victory Ave over Upper Iowa	1949	393	Poor
FM Oak Ave over Upper Iowa	1950	393	Poor
FM Addison Ave over Wapsipinicon River	1968	285	Poor
Woodland Ave over Watson Creek	1930	130	Poor
FM 170TH St over Bohemian Creek	1959	80	Poor
Local 170TH St over Little Wapsipinicon	1950	80	Poor
Howard Ave over Crane Creek	1920	63	Poor
Loc 30TH St over Nichols CR	1947	62	Poor
Fm-175th St over Crane Creek	1955	59	Poor
Local 40TH St over Blank CR	1953	51	Poor
Local 162ND St over Br Little Wapsipinicon R	1986	50	Poor
Timber Ave over Turkey River	1987	48	Poor
180TH St over Bohemian Creek	1953	42	Poor
Loc Crescent Av over Br Little Wapsipinicon R	1970	42	Poor
Vale Rd over Nichols CR	1949	42	Poor
Local over Br Wapsipinicon River	1988	31	Poor
175TH St over Br Mead Creek	1989	31	Poor
Pleasant Ave over Drainage Ditch	1970	31	Poor
Local Grove Ave over Branch Crane Creek	1983	31	Poor
180TH St over Turkey River	1986	30	Poor
Local 70TH St over North Turkey	1966	30	Poor
180TH St over Little Turkey River	1985	29	Poor
Local 125TH St over Little Wapsipinicon Rvr	1984	26	Poor
Local 25TH St over Upper Iowa River	1880	26	Poor
Kings Rd over Turkey River	1961	25	Poor
Lincoln Ave over Br Crane Creek	1990	25	Poor
Iris Ave over Drainage Ditch	1966	21	Poor
Local 90TH St over Crane Creek	1951	21	Poor
Unity Avenue over Branch of Silver Creek	1960	21	Poor
155TH St over Crane Creek	1937	20	Poor
Local 90TH St over Br Crane Creek	1970	16	Poor
FM 20TH St over Br Upper Iowa River	1951	15	Poor
Local 25TH St over Staff CR	1944	15	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
US 63 over Crane Creek	1971	4,360	Fair
US 63 over W.br.turkey River	1993	3,930	Good
US 63 over Upper Iowa River	1982	3,860	Fair
US 63 over Turkey River	1971	3,830	Fair
Ia 9 over So Branch Turkey River	1974	3,440	Fair
US 63 over Stream	1993	3,360	Good
US 63 over Beaver Creek	1993	3,290	Good
Ia 9 over N Branch Turkey River	2023	3,200	Good
Ia 9 over Little Wapsipinicon Rvr	1976	1,810	Fair
Ia 9 over Crane Creek	1976	1,630	Fair

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.