US Bridges

US 151 over Branch Clear Creek

Fair

Iowa County, Iowa · 2.6 Mi. S of S Jct. US 6 · Structure no. 000000000605605

Built
1984
41 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete Continuous
Length
36 ft
3 main spans
Daily traffic
1,510
2022 count
Owner
State
State Highway Agency

About this bridge

US 151 over Branch Clear Creek is a concrete continuous culvert carrying US 151 over Branch Clear Creek in Iowa County, Iowa. It was built in 1984, so it is 41 years old, younger 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 1,510 vehicles a day, roughly 13% of them trucks, projected to reach 1,510 by 2044. The structure is 36 ft (11 m) long. If it were closed, the detour would be 23 mi (37 km).

CarriesUS 151
CrossesBranch Clear Creek
Location2.6 Mi. S of S Jct. US 6
RouteU.S. Route 151
StateIowa
Coordinates41.73164, -91.90971
Functional classRural Principal Arterial - Other

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.8 US tons
Inventory rating47.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length36 ft (11 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,510 (2022)
Projected traffic1,510 by 2044
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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 US 151 over Branch Clear Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is US 151 over Branch Clear 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 January 2024.

How much traffic does US 151 over Branch Clear Creek carry?

About 1,510 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is US 151 over Branch Clear Creek?

The structure is 36 ft (11 m) long with a longest span of 10 ft (3 m).

Who owns US 151 over Branch Clear Creek?

It is owned by the State Highway Agency.