US Bridges

I 280 EB over Ia 22

Fair

Scott County, Iowa · At the Jct. of Iowa 22 · Structure no. 000000000600720

Built
1970
55 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
236 ft
4 main spans
Daily traffic
9,600
2022 count
Owner
State
State Highway Agency

About this bridge

I 280 EB over Ia 22 is a steel continuous stringer/multi-beam or girder carrying I 280 EB over Ia 22 in Scott County, Iowa. It was built in 1970, so it is 55 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 9,600 vehicles a day, roughly 34% of them trucks, projected to reach 9,600 by 2044. The structure is 236 ft (71.9 m) long and 43 ft wide.

CarriesI 280 EB
CrossesIa 22
LocationAt the Jct. of Iowa 22
RouteInterstate 280
StateIowa
Coordinates41.49189, -90.65007
Functional classUrban Principal Arterial - Interstate

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.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.8 US tons
Inventory rating46.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length236 ft (71.9 m)
Longest span69 ft (21 m)
Deck width43 ft (13 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,600 (2022)
Projected traffic9,600 by 2044
Trucks34%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 280 EB over Ia 22 built?

It was built in 1970, making it 55 years old in 2025.

What condition is I 280 EB over Ia 22 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 February 2024.

How much traffic does I 280 EB over Ia 22 carry?

About 9,600 vehicles per day (2022 count), of which roughly 34% are trucks.

How long is I 280 EB over Ia 22?

The structure is 236 ft (71.9 m) long with a longest span of 69 ft (21 m) and a deck 43 ft wide.

Who owns I 280 EB over Ia 22?

It is owned by the State Highway Agency.