US Bridges

Ia 150 over Prairie Creek

Good

Benton County, Iowa · 1.8 M N County RD V71 · Structure no. 000000000014481

Built
2024
1 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
103 ft
1 main span
Daily traffic
3,450
2023 count
Owner
State
State Highway Agency

About this bridge

Ia 150 over Prairie Creek is a concrete stringer/multi-beam or girder carrying Ia 150 over Prairie Creek in Benton 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,450 vehicles a day, roughly 6% of them trucks, projected to reach 3,450 by 2044. The structure is 103 ft (31.4 m) long and 47 ft wide.

CarriesIa 150
CrossesPrairie Creek
Location1.8 M N County RD V71
RouteState Highway 150
StateIowa
Coordinates42.22468, -91.95318
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 20 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length103 ft (31.4 m)
Longest span100 ft (30.5 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,450 (2023)
Projected traffic3,450 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ia 150 over Prairie Creek built?

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

What condition is Ia 150 over Prairie 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 September 2024.

How much traffic does Ia 150 over Prairie Creek carry?

About 3,450 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Ia 150 over Prairie Creek?

The structure is 103 ft (31.4 m) long with a longest span of 100 ft (30.5 m) and a deck 47 ft wide.

Who owns Ia 150 over Prairie Creek?

It is owned by the State Highway Agency.