US Bridges

Ia 22 over Stream

Fair

Muscatine County, Iowa · 0.2 MI E of JCT SR Y36 · Structure no. 000000000038130

Built
1967
58 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
1,560
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 22 over Stream is a concrete slab carrying Ia 22 over Stream in Muscatine County, Iowa. It was built in 1967, so it is 58 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 1,560 vehicles a day, roughly 18% of them trucks, projected to reach 1,560 by 2043. The structure is 32 ft (9.8 m) long and 46 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesIa 22
CrossesStream
Location0.2 MI E of JCT SR Y36
RouteState Highway 22
CountyMuscatine County
StateIowa
Coordinates41.4592, -90.80371
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating43.7 US tons
Inventory rating26.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length32 ft (9.8 m)
Longest span26 ft (7.9 m)
Deck width46 ft (14 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,560 (2022)
Projected traffic1,560 by 2043
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 22 over Stream built?

It was built in 1967, making it 58 years old in 2025.

What condition is Ia 22 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 2023.

How much traffic does Ia 22 over Stream carry?

About 1,560 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is Ia 22 over Stream?

The structure is 32 ft (9.8 m) long with a longest span of 26 ft (7.9 m) and a deck 46 ft wide.

Who owns Ia 22 over Stream?

It is owned by the State Highway Agency.