US Bridges

Ia 150 over Bear Creek

Good

Buchanan County, Iowa · 0.9 Mi. N of CR D-47 · Structure no. 000000000015921

Built
2013
12 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
197 ft
3 main spans
Daily traffic
4,650
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 150 over Bear Creek is a prestressed concrete stringer/multi-beam or girder carrying Ia 150 over Bear Creek in Buchanan County, Iowa. It was built in 2013, so it is 12 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 4,650 vehicles a day, roughly 19% of them trucks, projected to reach 4,650 by 2043. The structure is 197 ft (60 m) long and 47 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesIa 150
CrossesBear Creek
Location0.9 Mi. N of CR D-47
RouteState Highway 150
StateIowa
Coordinates42.38256, -91.88944
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 protection9 ExcellentNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 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
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

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length197 ft (60 m)
Longest span81 ft (24.8 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,650 (2022)
Projected traffic4,650 by 2043
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ia 150 over Bear Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is Ia 150 over Bear 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 November 2023.

How much traffic does Ia 150 over Bear Creek carry?

About 4,650 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is Ia 150 over Bear Creek?

The structure is 197 ft (60 m) long with a longest span of 81 ft (24.8 m) and a deck 47 ft wide.

Who owns Ia 150 over Bear Creek?

It is owned by the State Highway Agency.