US Bridges

US 30 EB over Mud Creek

Fair

Benton County, Iowa · 0.9 Mi. W of Jct. SR W14 · Structure no. 000000000606905

Built
1998
27 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete Continuous
Length
113 ft
3 main spans
Daily traffic
4,750
2022 count
Owner
State
State Highway Agency

About this bridge

US 30 EB over Mud Creek is a concrete continuous slab carrying US 30 EB over Mud Creek in Benton County, Iowa. It was built in 1998, so it is 27 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 4,750 vehicles a day, roughly 21% of them trucks, projected to reach 4,750 by 2044. The structure is 113 ft (34.4 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 30 EB
CrossesMud Creek
Location0.9 Mi. W of Jct. SR W14
RouteU.S. Route 30
StateIowa
Coordinates41.96323, -91.9871
Functional classRural Principal Arterial - Other

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.5 US tons
Inventory rating40.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length113 ft (34.4 m)
Longest span43 ft (13.1 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,750 (2022)
Projected traffic4,750 by 2044
Trucks21%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 US 30 EB over Mud Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is US 30 EB over Mud Creek 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 January 2024.

How much traffic does US 30 EB over Mud Creek carry?

About 4,750 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is US 30 EB over Mud Creek?

The structure is 113 ft (34.4 m) long with a longest span of 43 ft (13.1 m) and a deck 43 ft wide.

Who owns US 30 EB over Mud Creek?

It is owned by the State Highway Agency.