US Bridges

Avenue G over UP RR

Good

Whiteside County, Illinois · Sterling · Structure no. 098600500000000

Built
1963
62 years old, rebuilt 1995
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
521 ft
6 main spans
Daily traffic
7,700
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Avenue G over UP RR is a steel continuous stringer/multi-beam or girder carrying Avenue G over UP RR in Whiteside County, Illinois. It was built in 1963 and reconstructed in 1995, so it is 62 years old, older than the Illinois average of 45.3 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 7,700 vehicles a day, roughly 7% of them trucks, projected to reach 7,777 by 2046. The structure is 521 ft (158.8 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesAvenue G
CrossesUP RR
LocationSterling
CountyWhiteside County
StateIllinois
Coordinates41.78559, -89.70623
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
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 alignment7: Better than present minimum criteria
Operating rating75.7 US tons
Inventory rating45.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length521 ft (158.8 m)
Longest span100 ft (30.6 m)
Deck width39 ft (11.9 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,700 (2021)
Projected traffic7,777 by 2046
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Avenue G over UP RR built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1995.

What condition is Avenue G 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 March 2023.

How much traffic does Avenue G over UP RR carry?

About 7,700 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Avenue G over UP RR?

The structure is 521 ft (158.8 m) long with a longest span of 100 ft (30.6 m) and a deck 39 ft wide.

Who owns Avenue G over UP RR?

It is owned by the City or Municipal Highway Agency.