US Bridges

SR E2W over I-380

Fair

Linn County, Iowa · 3.6 Mi. N of SR W36 · Structure no. 000000000605120

Built
1984
41 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
476 ft
4 main spans
Daily traffic
1,257
2022 count
Owner
State
State Highway Agency

About this bridge

SR E2W over I-380 is a steel continuous stringer/multi-beam or girder carrying SR E2W over I-380 in Linn County, Iowa. It was built in 1984, so it is 41 years old, younger 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 1,257 vehicles a day, roughly 7% of them trucks, projected to reach 1,257 by 2043. The structure is 476 ft (145.1 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSR E2W
CrossesI-380
Location3.6 Mi. N of SR W36
RouteCounty Highway 0
CountyLinn County
StateIowa
Coordinates42.20369, -91.83259
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.1 US tons
Inventory rating43.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length476 ft (145.1 m)
Longest span151 ft (46 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,257 (2022)
Projected traffic1,257 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR E2W over I-380 built?

It was built in 1984, making it 41 years old in 2025.

What condition is SR E2W over I-380 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 November 2023.

How much traffic does SR E2W over I-380 carry?

About 1,257 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is SR E2W over I-380?

The structure is 476 ft (145.1 m) long with a longest span of 151 ft (46 m) and a deck 35 ft wide.

Who owns SR E2W over I-380?

It is owned by the State Highway Agency.