US Bridges

Thorpe RD over Union Pacif RR

Good

Ogle County, Illinois · .93MI S of Thorp RD · Structure no. 071332600000000

Built
2006
19 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
287 ft
3 main spans
Daily traffic
50
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Thorpe RD over Union Pacif RR is a prestressed concrete stringer/multi-beam or girder carrying Thorpe RD over Union Pacif RR in Ogle County, Illinois. It was built in 2006, so it is 19 years old, younger 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 50 vehicles a day, roughly 4% of them trucks, projected to reach 104 by 2046. The structure is 287 ft (87.6 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesThorpe RD
CrossesUnion Pacif RR
Location.93MI S of Thorp RD
RouteCounty Highway 0
Coordinates41.89784, -89.13142
Functional classUrban Collector

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.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length287 ft (87.6 m)
Longest span133 ft (40.4 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic104 by 2046
Trucks4%
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

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Thorpe RD over Union Pacif RR built?

It was built in 2006, making it 19 years old in 2025.

What condition is Thorpe RD over Union Pacif 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 July 2023.

How much traffic does Thorpe RD over Union Pacif RR carry?

About 50 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Thorpe RD over Union Pacif RR?

The structure is 287 ft (87.6 m) long with a longest span of 133 ft (40.4 m) and a deck 43 ft wide.

Who owns Thorpe RD over Union Pacif RR?

It is owned by the Town or Township Highway Agency.