US Bridges

Ia 25 over Stream

Fair

Adair County, Iowa · 5.5 Mi. S of Jct. I-80 · Structure no. 000000000012960

Built
1952
73 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
30 ft
1 main span
Daily traffic
2,080
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 25 over Stream is a concrete culvert carrying Ia 25 over Stream in Adair County, Iowa. It was built in 1952, so it is 73 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 2,080 vehicles a day, roughly 21% of them trucks, projected to reach 2,080 by 2044. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesIa 25
CrossesStream
Location5.5 Mi. S of Jct. I-80
RouteState Highway 25
CountyAdair County
StateIowa
Coordinates41.41615, -94.45261
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: 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 rating34 US tons
Inventory rating25 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,080 (2022)
Projected traffic2,080 by 2044
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 25 over Stream built?

It was built in 1952, making it 73 years old in 2025.

What condition is Ia 25 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 October 2024.

How much traffic does Ia 25 over Stream carry?

About 2,080 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is Ia 25 over Stream?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m).

Who owns Ia 25 over Stream?

It is owned by the State Highway Agency.