US Bridges

US 30 EB over UP RR

Fair

Clinton County, Iowa · 5.8 Mi. E of S Jct. US 61 · Structure no. 000000000602820

Built
1974
51 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
386 ft
3 main spans
Daily traffic
4,700
2022 count
Owner
State
State Highway Agency

About this bridge

US 30 EB over UP RR is a steel continuous stringer/multi-beam or girder carrying US 30 EB over UP RR in Clinton County, Iowa. It was built in 1974, so it is 51 years old, older 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 4,700 vehicles a day, roughly 15% of them trucks, projected to reach 4,700 by 2044. The structure is 386 ft (117.7 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesUS 30 EB
CrossesUP RR
Location5.8 Mi. E of S Jct. US 61
RouteU.S. Route 30
CountyClinton County
StateIowa
Coordinates41.81372, -90.4576
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.1 US tons
Inventory rating31.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length386 ft (117.7 m)
Longest span148 ft (45.1 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,700 (2022)
Projected traffic4,700 by 2044
Trucks15%
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 UP RR built?

It was built in 1974, making it 51 years old in 2025.

What condition is US 30 EB over UP RR 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 October 2024.

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

About 4,700 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is US 30 EB over UP RR?

The structure is 386 ft (117.7 m) long with a longest span of 148 ft (45.1 m) and a deck 43 ft wide.

Who owns US 30 EB over UP RR?

It is owned by the State Highway Agency.