US Bridges

US 30 over Union Pacific RR

Fair

Whiteside County, Illinois · .6 MI W Ill 84 · Structure no. 098600100000000

Built
1956
69 years old, rebuilt 2006
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
166 ft
3 main spans
Daily traffic
9,650
2023 count
Owner
State
State Highway Agency

About this bridge

US 30 over Union Pacific RR is a steel continuous stringer/multi-beam or girder carrying US 30 over Union Pacific RR in Whiteside County, Illinois. It was built in 1956 and reconstructed in 2006, so it is 69 years old, older than the Illinois average of 45.3 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 9,650 vehicles a day, roughly 13% of them trucks, projected to reach 11,716 by 2046. The structure is 166 ft (50.7 m) long and 43 ft wide.

Location

Open in Google Maps
CarriesUS 30
CrossesUnion Pacific RR
Location.6 MI W Ill 84
RouteU.S. Route 30
CountyWhiteside County
StateIllinois
Coordinates41.83921, -90.16674
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating71.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length166 ft (50.7 m)
Longest span60 ft (18.3 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,650 (2023)
Projected traffic11,716 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 30 over Union Pacific RR built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 2006.

What condition is US 30 over Union Pacific 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 over Union Pacific RR carry?

About 9,650 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is US 30 over Union Pacific RR?

The structure is 166 ft (50.7 m) long with a longest span of 60 ft (18.3 m) and a deck 43 ft wide.

Who owns US 30 over Union Pacific RR?

It is owned by the State Highway Agency.