US Bridges

EB I-80 over North Raccoon River

Fair

Dallas County, Iowa · 2.3 Mi. E. of Jct. US 169 · Structure no. 000000000022330

Built
1966
59 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
523 ft
5 main spans
Daily traffic
19,100
2023 count
Owner
State
State Highway Agency

About this bridge

EB I-80 over North Raccoon River is a steel continuous stringer/multi-beam or girder carrying EB I-80 over North Raccoon River in Dallas County, Iowa. It was built in 1966, so it is 59 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 19,100 vehicles a day, roughly 26% of them trucks, projected to reach 19,100 by 2043. The structure is 523 ft (159.4 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesEB I-80
CrossesNorth Raccoon River
Location2.3 Mi. E. of Jct. US 169
RouteInterstate 9880
StateIowa
Coordinates41.54498, -93.96812
Functional classRural 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
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.3 US tons
Inventory rating34.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length523 ft (159.4 m)
Longest span113 ft (34.4 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,100 (2023)
Projected traffic19,100 by 2043
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was EB I-80 over North Raccoon River built?

It was built in 1966, making it 59 years old in 2025.

What condition is EB I-80 over North Raccoon River 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 April 2024.

How much traffic does EB I-80 over North Raccoon River carry?

About 19,100 vehicles per day (2023 count), of which roughly 26% are trucks.

How long is EB I-80 over North Raccoon River?

The structure is 523 ft (159.4 m) long with a longest span of 113 ft (34.4 m) and a deck 36 ft wide.

Who owns EB I-80 over North Raccoon River?

It is owned by the State Highway Agency.