US Bridges

US 30 EB over Over UP RR

Good

Marshall County, Iowa · 1.0 Mile W of JCT SR T31 · Structure no. 000000000035331

Built
1986
39 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
180 ft
3 main spans
Daily traffic
7,350
2022 count
Owner
State
State Highway Agency

About this bridge

US 30 EB over Over UP RR is a prestressed concrete stringer/multi-beam or girder carrying US 30 EB over Over UP RR in Marshall County, Iowa. It was built in 1986, so it is 39 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 7,350 vehicles a day, roughly 13% of them trucks, projected to reach 7,350 by 2044. The structure is 180 ft (54.9 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 30 EB
CrossesOver UP RR
Location1.0 Mile W of JCT SR T31
RouteU.S. Route 30
StateIowa
Coordinates42.00674, -92.84359
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70.4 US tons
Inventory rating42 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length180 ft (54.9 m)
Longest span69 ft (21 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,350 (2022)
Projected traffic7,350 by 2044
Trucks13%
Lanes on structure2
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 30 EB over Over UP RR built?

It was built in 1986, making it 39 years old in 2025.

What condition is US 30 EB over Over UP RR 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 February 2024.

How much traffic does US 30 EB over Over UP RR carry?

About 7,350 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is US 30 EB over Over UP RR?

The structure is 180 ft (54.9 m) long with a longest span of 69 ft (21 m) and a deck 43 ft wide.

Who owns US 30 EB over Over UP RR?

It is owned by the State Highway Agency.