US Bridges

SE Ramp I-380 over Over Cc RR & Trail

Fair

Linn County, Iowa · 0.2 Mi. S of Jct. Ia 100 · Structure no. 000000000604725

Built
1982
43 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
151 ft
3 main spans
Daily traffic
7,700
2022 count
Owner
State
State Highway Agency

About this bridge

SE Ramp I-380 over Over Cc RR & Trail is a steel continuous stringer/multi-beam or girder carrying SE Ramp I-380 over Over Cc RR & Trail in Linn County, Iowa. It was built in 1982, so it is 43 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 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 7,700 vehicles a day, roughly 4% of them trucks, projected to reach 7,700 by 2044. The structure is 151 ft (46 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSE Ramp I-380
CrossesOver Cc RR & Trail
Location0.2 Mi. S of Jct. Ia 100
RouteInterstate 380
CountyLinn County
StateIowa
Coordinates42.02733, -91.67153
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length151 ft (46 m)
Longest span61 ft (18.6 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,700 (2022)
Projected traffic7,700 by 2044
Trucks4%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 SE Ramp I-380 over Over Cc RR & Trail built?

It was built in 1982, making it 43 years old in 2025.

What condition is SE Ramp I-380 over Over Cc RR & Trail 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 June 2024.

How much traffic does SE Ramp I-380 over Over Cc RR & Trail carry?

About 7,700 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is SE Ramp I-380 over Over Cc RR & Trail?

The structure is 151 ft (46 m) long with a longest span of 61 ft (18.6 m) and a deck 31 ft wide.

Who owns SE Ramp I-380 over Over Cc RR & Trail?

It is owned by the State Highway Agency.