US Bridges

Ia 150 over Stream

Fair

Winneshiek County, Iowa · 1.8 Mi. S of Jct. US 52 · Structure no. 000000000052761

Built
1988
37 years old
Condition
Fair
inspected March 2024
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
2,210
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 150 over Stream is a concrete continuous culvert carrying Ia 150 over Stream in Winneshiek County, Iowa. It was built in 1988, so it is 37 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 2,210 vehicles a day, roughly 22% of them trucks, projected to reach 2,210 by 2044. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesIa 150
CrossesStream
Location1.8 Mi. S of Jct. US 52
RouteState Highway 150
CountyWinneshiek County
StateIowa
Coordinates43.15686, -91.86375
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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 alignment7: Better than present minimum criteria
Operating rating56.1 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,210 (2022)
Projected traffic2,210 by 2044
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 Stream built?

It was built in 1988, making it 37 years old in 2025.

What condition is Ia 150 over Stream 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 March 2024.

How much traffic does Ia 150 over Stream carry?

About 2,210 vehicles per day (2022 count), of which roughly 22% are trucks.

How long is Ia 150 over Stream?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m).

Who owns Ia 150 over Stream?

It is owned by the State Highway Agency.