Home › Iowa › Poweshiek County

Bridge conditions in Poweshiek County, Iowa

243 inventoried bridges · 95 rated poor · 2025 National Bridge Inventory

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

Of the 243 Poweshiek County bridges in the federal inventory, 95 carry a poor rating. That 39.1% share is roughly 6x the national average.

95 of the 243 bridges in Poweshiek County, Iowa, are rated in poor condition (39.1%) in the 2025 National Bridge Inventory, as of August 20, 2026.
66 bridges (27.2%) are rated good and 82 (33.7%) fair.
The median Poweshiek County bridge was built in 1974.
The busiest poor-rated bridge is I 80 WB over Iowa 21 (built 1963), carrying about 13,300 vehicles a day.

Good 27.2% · Fair 33.7% · Poor 39.1% of 243 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
I 80 WB over Iowa 21	1963	13,300	Poor
US 6 over Stony Creek	1954	2,080	Poor
FM over Buck Creek	1969	2,000	Poor
FM over Small Stream	1969	2,000	Poor
FM over Little Bear Creek	1977	770	Poor
FM over Stream	1924	750	Poor
FM over North Walnut Creek	1990	650	Poor
FM over Walnut Creek	1990	650	Poor
FM over South English River	1964	480	Poor
Orchard St over Little Bear Creek	1912	340	Poor
Cleveland St over Drainage	1962	200	Poor
4TH St over Fleener Creek	1917	181	Poor
Local over Big Bear Creek	1951	161	Poor
Local over Bear Creek	1946	140	Poor
FM over Bear Creek	1979	130	Poor
Local over Small	1979	90	Poor
FM over Buck Creek	1984	80	Poor
Local over Small Stream	1978	71	Poor
FM over North Skunk River	1958	70	Poor
Local over Stream	1953	60	Poor
Local over Stream	1952	60	Poor
Local over Bear Creek	1950	60	Poor
Local over Big Bear Creek	1951	60	Poor
Local over Branch Iowa River	1988	60	Poor
FM over Big Bear Creek	1955	60	Poor
Local over So English River	1980	50	Poor
Local over Small Creek	1985	50	Poor
Local over Sugar Creek	1923	50	Poor
FM over Big Bear Creek	1950	50	Poor
FM over Rock Creek	1973	50	Poor
FM over Stream	1949	45	Poor
Local over N English River	1955	45	Poor
Local over Sugar Creek	1980	45	Poor
Local over So English River	1980	40	Poor
Local over South English River	1974	40	Poor
Local over Stream	1975	40	Poor
Local over Walnut Creek	1951	40	Poor
Local over Sugar Creek	1958	34	Poor
Local over Brush Creek	1958	34	Poor
Local over Small Stream	1950	34	Poor
Local over North Walnut Creek	1951	34	Poor
Local over Stream	1965	30	Poor
FM over South English River	1990	30	Poor
FM over Moon Creek	1952	30	Poor
FM over Deep River	1949	30	Poor
FM over Stream	1948	30	Poor
Local over North English River	1983	30	Poor
Local over Buck Creek	1974	30	Poor
FM over Buck Creek	1976	30	Poor
Local over Stream	1954	30	Poor
Local over North Walnut Creek	1955	30	Poor
Local over North Walnut Creek	1979	30	Poor
Local over Stream	1977	30	Poor
Local over Stream	1953	30	Poor
Local over Stream	1949	26	Poor
Local over Small	1983	26	Poor
Local over Stream	1965	26	Poor
Local over Stony Creek	1923	26	Poor
Local over Bear Creek	1935	26	Poor
Local over Stream	1968	26	Poor
Local over Walnut Creek	1915	26	Poor
Local over Bear Creek	1972	26	Poor
FM over Stream	1969	25	Poor
Local over Deep River	1983	20	Poor
Local over North English River	1951	20	Poor
FM over Stream	1948	20	Poor
Local over Little Bear Creek	1952	20	Poor
Local over Small Stream	1925	20	Poor
Local over Stream	1980	20	Poor
Local over South English River	1984	15	Poor
Local over Stream	1929	15	Poor
Local over Deep River	1961	15	Poor
Local over N English River	1924	15	Poor
FM over Sugar Creek	1982	15	Poor
FM over Small Stream	1948	15	Poor
Local over Stony Creek	1971	15	Poor
Local over Stream	1959	15	Poor
Local over Small	1978	15	Poor
Local over Walnut Creek	1924	15	Poor
Local over Walnut Creek	1928	15	Poor
Local over Stream	1973	15	Poor
Local over Stream	1920	11	Poor
Local over Stream	1964	11	Poor
Local over Stream	1959	11	Poor
Local over Stream	1918	11	Poor
Local over Stream	1968	11	Poor
Local over Small	1979	11	Poor
Local over Stream	1956	11	Poor
Local over Stream	1968	11	Poor
Local over Stream	1967	11	Poor
Local over Stream	1981	11	Poor
Local over Stream	1971	11	Poor
FM over Stream	1984	10	Poor
FM over Small Stream	1968	10	Poor
Local over Walnut Creek	1926	5	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
I-80 over N.fk. English River	1963	28,500	Fair
I-80 over No Fork English River	1963	28,500	Fair
EB I-80 over 50TH Street	1963	14,250	Fair
I 80 WB over UP RR	2023	14,000	Good
WB I-80 over 50TH Street	1963	14,000	Fair
EB I-80 over SR V18	1963	13,600	Fair
EB I-80 over US 63	1964	13,550	Fair
I 80 EB over Iowa 21	1963	13,550	Fair
I 80 EB over Ia 146	2020	13,450	Good
I 80 EB over UP RR	2020	13,350	Good

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.