US Bridges

I-380 over Mud Creek

Good

Buchanan County, Iowa · 1.4 Mi. S of Jct. SR V65 · Structure no. 000000000605480

Built
1983
42 years old
Condition
Good
inspected March 2024
Type
Culvert
Concrete Continuous
Length
34 ft
3 main spans
Daily traffic
17,700
2022 count
Owner
State
State Highway Agency

About this bridge

I-380 over Mud Creek is a concrete continuous culvert carrying I-380 over Mud Creek in Buchanan County, Iowa. It was built in 1983, so it is 42 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 17,700 vehicles a day, roughly 28% of them trucks, projected to reach 17,700 by 2044. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-380
CrossesMud Creek
Location1.4 Mi. S of Jct. SR V65
RouteInterstate 380
StateIowa
Coordinates42.34463, -92.03951
Functional classRural 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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51.5 US tons
Inventory rating30.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,700 (2022)
Projected traffic17,700 by 2044
Trucks28%
Lanes on structure4
Traffic directionTwo-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 I-380 over Mud Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is I-380 over Mud Creek 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 March 2024.

How much traffic does I-380 over Mud Creek carry?

About 17,700 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is I-380 over Mud Creek?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m).

Who owns I-380 over Mud Creek?

It is owned by the State Highway Agency.