US Bridges

250th over Winnebago River

Fair

Cerro Gordo County, Iowa · 096191903 · Structure no. 000000000106060

Built
1923
102 years old
Condition
Fair
inspected February 2024
Type
Arch - Deck
Concrete
Length
100 ft
1 main span
Daily traffic
51
2022 count
Owner
County
County Highway Agency

About this bridge

250th over Winnebago River is a concrete arch - deck carrying 250th over Winnebago River in Cerro Gordo County, Iowa. It was built in 1923, so it is 102 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 51 vehicles a day, projected to reach 51 by 2044. The structure is 100 ft (30.5 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries250th
CrossesWinnebago River
Location096191903
RouteCounty Highway 0
CountyCerro Gordo County
StateIowa
Coordinates43.12566, -93.12357
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating37.6 US tons
Inventory rating26.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length100 ft (30.5 m)
Longest span100 ft (30.5 m)
Deck width22 ft (6.6 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51 (2022)
Projected traffic51 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 250th over Winnebago River built?

It was built in 1923, making it 102 years old in 2025.

What condition is 250th over Winnebago River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does 250th over Winnebago River carry?

About 51 vehicles per day (2022 count).

How long is 250th over Winnebago River?

The structure is 100 ft (30.5 m) long with a longest span of 100 ft (30.5 m) and a deck 22 ft wide.

Who owns 250th over Winnebago River?

It is owned by the County Highway Agency.