Home › Iowa › Webster County

Bridge conditions in Webster County, Iowa

190 inventoried bridges · 48 rated poor · 2025 National Bridge Inventory

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

Of the 190 Webster County bridges in the federal inventory, 48 carry a poor rating. That 25.3% share is roughly 4x the national average.

48 of the 190 bridges in Webster County, Iowa, are rated in poor condition (25.3%) in the 2025 National Bridge Inventory, as of August 20, 2026.
87 bridges (45.8%) are rated good and 55 (28.9%) fair.
The median Webster County bridge was built in 1986.
The busiest poor-rated bridge is 5TH Ave over Drainage Ditch (built 1955), carrying about 8,894 vehicles a day.

Good 45.8% · Fair 28.9% · Poor 25.3% of 190 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
5TH Ave over Drainage Ditch	1955	8,894	Poor
N 15TH St over Soldier Creek	1974	8,798	Poor
E Hawkeye Ave over Des Moines River	1987	6,875	Poor
North 3RD St over Soldier Creek & Trail	1961	5,768	Poor
N 7TH St over Soldier Creek	1995	5,546	Poor
US 169 over Bass Creek	1958	4,680	Poor
FM over Soldier CR (dd No 247)	1974	2,364	Poor
FM over Dd No 247	1974	2,284	Poor
FM over Drainage	1977	1,795	Poor
FM over Hardin Creek	1973	1,446	Poor
FM over Dd	1973	1,446	Poor
FM over Dd	1973	1,287	Poor
Co P-73 over Des Moines River	1960	1,263	Poor
FM over Dd Dist 57	1978	1,197	Poor
FM over Lizard Creek	1974	1,157	Poor
Ia 175 over Drainage Ditch #52	1953	880	Poor
Soldier CR Dr over Soldier Creek	1999	790	Poor
FM over Stream-d.d.196	1900	748	Poor
FM over Drainage	1973	628	Poor
FM over Dd No 4	1974	559	Poor
FM over Lizard Creek	1965	549	Poor
FM over Lizard Creek	1965	549	Poor
FM over Deer Creek	1968	379	Poor
FM over Drainage	1977	359	Poor
FM over Dd No 69	1974	339	Poor
FM over Praire Creek	1996	319	Poor
FM over Dd No 70	1974	240	Poor
FM over South Lizard Creek	1975	230	Poor
Local over South Lizard Creek	1956	81	Poor
Local over Deer Creek	1925	81	Poor
Local Rd over Skillet Creek	1982	50	Poor
Local over Knack Creek	1915	46	Poor
Local over Skillet Creek	1919	46	Poor
Local over Dd	1976	46	Poor
Local over Deer Creek	1925	45	Poor
Local over Fulton Twp	1956	35	Poor
Local over Deer Creek	1900	35	Poor
4TH Ave SE over Skillet Creek	1900	34	Poor
FM over Drainage Ditch No 69	1981	34	Poor
FM over Brushy Creek	1900	30	Poor
Local over Drainage Ditch No. 3	1913	30	Poor
Local over Small Stream	1990	30	Poor
Local over Buttrick Creek	1913	26	Poor
Local over Dd	1960	15	Poor
Local over Dd	1976	15	Poor
FM over Drainage Ditch No 3	1980	15	Poor
Local over Lizard Creek	1962	15	Poor
Carter Ave over Dd	1959	11	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
1ST Ave S over 21ST St & RR	1968	9,860	Fair
US 20 over Holliday Creek	1986	9,800	Good
US 20 over Drainage Ditch #4	1986	9,500	Good
5TH Ave over Drainage Ditch	1955	8,894	Poor
N 15TH St over Soldier Creek	1974	8,798	Poor
US 20 over Drainage Ditch 69	2011	7,900	Good
Quail Ave over Quarry Haul Rd	2010	7,579	Good
E Hawkeye Ave over Des Moines River	1987	6,875	Poor
North 3RD St over Soldier Creek & Trail	1961	5,768	Poor
N 7TH St over Soldier Creek	1995	5,546	Poor

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.