US Bridges

150th ST over Trib of Ioway Creek

Good

Boone County, Iowa · 085253601 · Structure no. 000000000078271

Built
2024
1 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
100
2023 count
Owner
County
County Highway Agency

About this bridge

150th ST over Trib of Ioway Creek is a concrete continuous culvert carrying 150th ST over Trib of Ioway Creek in Boone County, Iowa. It was built in 2024, so it is 1 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, projected to reach 100 by 2043. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries150th ST
CrossesTrib of Ioway Creek
Location085253601
RouteCounty Highway 0
StateIowa
Coordinates42.13759, -93.71258
Functional classRural Minor Collector

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.
Culvert9 ExcellentNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHL 93
Structure length26 ft (7.9 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 traffic100 (2023)
Projected traffic100 by 2043
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 statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 150th ST over Trib of Ioway Creek built?

It was built in 2024, making it 1 years old in 2025.

What condition is 150th ST over Trib of Ioway Creek 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 May 2024.

How much traffic does 150th ST over Trib of Ioway Creek carry?

About 100 vehicles per day (2023 count).

How long is 150th ST over Trib of Ioway Creek?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns 150th ST over Trib of Ioway Creek?

It is owned by the County Highway Agency.