US Bridges

WB US 30 over Over UP RR

Fair

Story County, Iowa · 0.1 Mile W of JCT SR S14 · Structure no. 000000000048800

Built
1963
62 years old, rebuilt 2012
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
206 ft
3 main spans
Daily traffic
6,750
2023 count
Owner
State
State Highway Agency

About this bridge

WB US 30 over Over UP RR is a steel continuous stringer/multi-beam or girder carrying WB US 30 over Over UP RR in Story County, Iowa. It was built in 1963 and reconstructed in 2012, so it is 62 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 6,750 vehicles a day, roughly 9% of them trucks, projected to reach 6,750 by 2043. The structure is 206 ft (62.8 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesWB US 30
CrossesOver UP RR
Location0.1 Mile W of JCT SR S14
RouteU.S. Route 30
CountyStory County
StateIowa
Coordinates42.00652, -93.46524
Functional classUrban Other Principal Arterial

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 inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65.4 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length206 ft (62.8 m)
Longest span78 ft (23.8 m)
Deck width36 ft (11 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,750 (2023)
Projected traffic6,750 by 2043
Trucks9%
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 WB US 30 over Over UP RR built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 2012.

What condition is WB US 30 over 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 January 2024.

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

About 6,750 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is WB US 30 over Over UP RR?

The structure is 206 ft (62.8 m) long with a longest span of 78 ft (23.8 m) and a deck 36 ft wide.

Who owns WB US 30 over Over UP RR?

It is owned by the State Highway Agency.