US Bridges

I 80 EB over I 80 WB to US 218 SB

Good

Johnson County, Iowa · I-80/I-380 Interchange · Structure no. 000000000700710

Built
2023
2 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
158 ft
1 main span
Daily traffic
13,800
2023 count
Owner
State
State Highway Agency

About this bridge

I 80 EB over I 80 WB to US 218 SB is a prestressed concrete stringer/multi-beam or girder carrying I 80 EB over I 80 WB to US 218 SB in Johnson County, Iowa. It was built in 2023, so it is 2 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,800 vehicles a day, roughly 33% of them trucks, projected to reach 13,800 by 2043. The structure is 158 ft (48.2 m) long and 78 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 80 EB
CrossesI 80 WB to US 218 SB
LocationI-80/I-380 Interchange
RouteInterstate 80
CountyJohnson County
StateIowa
Coordinates41.69424, -91.64225
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length158 ft (48.2 m)
Longest span155 ft (47.2 m)
Deck width78 ft (23.9 m)
Roadway width75 ft (23 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,800 (2023)
Projected traffic13,800 by 2043
Trucks33%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
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 80 EB over I 80 WB to US 218 SB built?

It was built in 2023, making it 2 years old in 2025.

What condition is I 80 EB over I 80 WB to US 218 SB in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does I 80 EB over I 80 WB to US 218 SB carry?

About 13,800 vehicles per day (2023 count), of which roughly 33% are trucks.

How long is I 80 EB over I 80 WB to US 218 SB?

The structure is 158 ft (48.2 m) long with a longest span of 155 ft (47.2 m) and a deck 78 ft wide.

Who owns I 80 EB over I 80 WB to US 218 SB?

It is owned by the State Highway Agency.