Ia 139 over Stream

Fair

Winneshiek County, Iowa · 2.5 Mi. N of Jct. Ia 9 · Structure no. 000000000052701

Built: 1995; 30 years old
Condition: Fair; inspected September 2024
Type: Slab; Concrete Continuous
Length: 134 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 slab carrying Ia 139 over Stream in Winneshiek County, Iowa. It was built in 1995, so it is 30 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 1,560 vehicles a day, roughly 11% of them trucks, projected to reach 1,560 by 2044. The structure is 134 ft (40.8 m) long and 42 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

Location

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CarriesIa 139

CrossesStream

Location2.5 Mi. N of Jct. Ia 9

RouteState Highway 139

CountyWinneshiek County

StateIowa

Coordinates43.39345, -92.06453

Functional classRural Major Collector

Condition and inspection

Fair

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

Component	Rating	Meaning
Deck	6 Satisfactory	Structural elements show some minor deterioration.
Superstructure	6 Satisfactory	Structural elements show some minor deterioration.
Substructure	7 Good	Some minor problems.
Channel and channel protection	9 Excellent	No problems noted.

Last inspectionSeptember 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour within limits of footing or piles

Structural evaluation6: Equal to present minimum criteria

Deck geometry6: Equal to present minimum criteria

Waterway adequacy8: Equal to present desirable criteria

Approach roadway alignment8: Equal to present desirable criteria

Operating rating99.4 US tons

Inventory rating59.6 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20

Structure length134 ft (40.8 m)

Longest span51 ft (15.5 m)

Deck width42 ft (12.9 m)

Roadway width39 ft (11.9 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 closed34.2 mi (55 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 1995, making it 30 years old in 2025.

What condition is Ia 139 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 September 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 134 ft (40.8 m) long with a longest span of 51 ft (15.5 m) and a deck 42 ft wide.

Who owns Ia 139 over Stream?

It is owned by the State Highway Agency.