US Bridges

Ia 7 over Powell Creek

Fair

Buena Vista County, Iowa · 1.5 Mi. W of Ia 110 · Structure no. 000000000016271

Built
1992
33 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete Continuous
Length
40 ft
3 main spans
Daily traffic
4,720
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 7 over Powell Creek is a concrete continuous culvert carrying Ia 7 over Powell Creek in Buena Vista County, Iowa. It was built in 1992, so it is 33 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 4,720 vehicles a day, roughly 7% of them trucks, projected to reach 4,720 by 2043. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIa 7
CrossesPowell Creek
Location1.5 Mi. W of Ia 110
RouteState Highway 7
CountyBuena Vista County
StateIowa
Coordinates42.65986, -95.25691
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 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 rating57.3 US tons
Inventory rating34.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length40 ft (12.2 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 traffic4,720 (2022)
Projected traffic4,720 by 2043
Trucks7%
Lanes on structure2
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ia 7 over Powell Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Ia 7 over Powell 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 May 2023.

How much traffic does Ia 7 over Powell Creek carry?

About 4,720 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Ia 7 over Powell Creek?

The structure is 40 ft (12.2 m) long with a longest span of 12 ft (3.7 m).

Who owns Ia 7 over Powell Creek?

It is owned by the State Highway Agency.