150th ST over Stream

Fair

Butler County, Iowa · 093153401 · Structure no. 000000000089271

Built: 1971; 54 years old
Condition: Fair; inspected April 2024
Type: Slab; Concrete Continuous
Length: 128 ft; 3 main spans
Daily traffic: 15; 2022 count
Owner: County; County Highway Agency

About this bridge

150th ST over Stream is a concrete continuous slab carrying 150th ST over Stream in Butler County, Iowa. It was built in 1971, so it is 54 years old, older 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 15 vehicles a day, projected to reach 15 by 2044. The structure is 128 ft (39 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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Carries150th ST

CrossesStream

Location093153401

RouteCounty Highway 0

CountyButler County

StateIowa

Coordinates42.83276, -92.61087

Functional classRural Local

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	8 Very Good	No problems noted.

Last inspectionApril 2024

Inspection intervalevery 24 months

Operating statusOpen, no restriction

ScourFoundations stable; scour above top of footing

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 rating41 US tons

Inventory rating24.6 US tons

Structure

Structure typeSlab

MaterialConcrete Continuous

DeckConcrete, cast-in-place

Main spans3

Design loadHS 20

Structure length128 ft (39 m)

Longest span49 ft (14.9 m)

Deck width26 ft (7.9 m)

Roadway width24 ft (7.3 m)

Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)

Projected traffic15 by 2044

Trucks0%

Lanes on structure2

Traffic directionTwo-way traffic

CarriesHighway

CrossesWaterway

Detour if closed3.1 mi (5 km)

TollOn a free road

National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency

Maintained byCounty Highway Agency

Historic statusNot eligible for the National Register of Historic Places

Work proposedOther structural work, including hydraulic replacements

Estimated improvement cost—

NavigationNo navigation control on waterway

Frequently asked questions

When was 150th ST over Stream built?

It was built in 1971, making it 54 years old in 2025.

What condition is 150th ST 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 April 2024.

How much traffic does 150th ST over Stream carry?

About 15 vehicles per day (2022 count).

How long is 150th ST over Stream?

The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 26 ft wide.

Who owns 150th ST over Stream?

It is owned by the County Highway Agency.