US Bridges

Ia 188 over Stream

Fair

Butler County, Iowa · 1.9 Mi. N of Jct. SR C33 · Structure no. 000000000016740

Built
1962
63 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete Continuous
Length
62 ft
2 main spans
Daily traffic
1,020
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 188 over Stream is a concrete continuous slab carrying Ia 188 over Stream in Butler County, Iowa. It was built in 1962, so it is 63 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 5 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 1,020 vehicles a day, roughly 20% of them trucks, projected to reach 1,020 by 2044. The structure is 62 ft (18.9 m) long and 36 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesIa 188
CrossesStream
Location1.9 Mi. N of Jct. SR C33
RouteState Highway 188
CountyButler County
StateIowa
Coordinates42.81287, -92.66813
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating36.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length62 ft (18.9 m)
Longest span30 ft (9.1 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,020 (2022)
Projected traffic1,020 by 2044
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 188 over Stream built?

It was built in 1962, making it 63 years old in 2025.

What condition is Ia 188 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 May 2024.

How much traffic does Ia 188 over Stream carry?

About 1,020 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Ia 188 over Stream?

The structure is 62 ft (18.9 m) long with a longest span of 30 ft (9.1 m) and a deck 36 ft wide.

Who owns Ia 188 over Stream?

It is owned by the State Highway Agency.