US Bridges

Ia 139 over Stream

Good

Winneshiek County, Iowa · 4.0 Mi. N of Jct. Ia 9 · Structure no. 000000000052711

Built
1990
35 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete Continuous
Length
38 ft
3 main spans
Daily traffic
1,560
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 139 over Stream is a concrete continuous culvert carrying Ia 139 over Stream in Winneshiek County, Iowa. It was built in 1990, so it is 35 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,560 vehicles a day, roughly 11% of them trucks, projected to reach 1,560 by 2044. The structure is 38 ft (11.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIa 139
CrossesStream
Location4.0 Mi. N of Jct. Ia 9
RouteState Highway 139
StateIowa
Coordinates43.41444, -92.05821
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating45.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length38 ft (11.6 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 traffic1,560 (2022)
Projected traffic1,560 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 139 over Stream built?

It was built in 1990, making it 35 years old in 2025.

What condition is Ia 139 over Stream 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 May 2024.

How much traffic does Ia 139 over Stream carry?

About 1,560 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Ia 139 over Stream?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m).

Who owns Ia 139 over Stream?

It is owned by the State Highway Agency.