US Bridges

Ia 175 over Tributary of Odebolt CR

Good

Ida County, Iowa · 0.5 Mi. E of Jct. SR M31 · Structure no. 000000000029311

Built
2011
14 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
1,500
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 175 over Tributary of Odebolt CR is a concrete continuous culvert carrying Ia 175 over Tributary of Odebolt CR in Ida County, Iowa. It was built in 2011, so it is 14 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,500 vehicles a day, roughly 17% of them trucks, projected to reach 1,500 by 2044. The structure is 27 ft (8.3 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesIa 175
CrossesTributary of Odebolt CR
Location0.5 Mi. E of Jct. SR M31
RouteState Highway 175
StateIowa
Coordinates42.32713, -95.33098
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length27 ft (8.3 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2022)
Projected traffic1,500 by 2044
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ia 175 over Tributary of Odebolt CR built?

It was built in 2011, making it 14 years old in 2025.

What condition is Ia 175 over Tributary of Odebolt CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does Ia 175 over Tributary of Odebolt CR carry?

About 1,500 vehicles per day (2022 count), of which roughly 17% are trucks.

How long is Ia 175 over Tributary of Odebolt CR?

The structure is 27 ft (8.3 m) long with a longest span of 12 ft (3.7 m).

Who owns Ia 175 over Tributary of Odebolt CR?

It is owned by the State Highway Agency.