US Bridges

US 151 over Creek

Fair

Linn County, Iowa · 2.5 Mi. S of Jct. Ia 100 · Structure no. 000000000607515

Built
1960
65 years old, rebuilt 1996
Condition
Fair
inspected April 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
22,400
2022 count
Owner
State
State Highway Agency

About this bridge

US 151 over Creek is a concrete continuous culvert carrying US 151 over Creek in Linn County, Iowa. It was built in 1960 and reconstructed in 1996, so it is 65 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 22,400 vehicles a day, roughly 14% of them trucks, projected to reach 22,400 by 2042. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 151
CrossesCreek
Location2.5 Mi. S of Jct. Ia 100
RouteU.S. Route 151
StateIowa
Coordinates41.98423, -91.54987
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 22 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,400 (2022)
Projected traffic22,400 by 2042
Trucks14%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 151 over Creek built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1996.

What condition is US 151 over Creek 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 April 2023.

How much traffic does US 151 over Creek carry?

About 22,400 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is US 151 over Creek?

The structure is 24 ft (7.3 m) long with a longest span of 8 ft (2.4 m).

Who owns US 151 over Creek?

It is owned by the State Highway Agency.