US Bridges

Union Road over Trib to Green River

Good

Lee County, Illinois · .05MI E Downey RD · Structure no. 052422700000000

Built
2022
3 years old
Condition
Good
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
71 ft
1 main span
Daily traffic
75
2017 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Union Road over Trib to Green River is a prestressed concrete box beam or girders - multiple carrying Union Road over Trib to Green River in Lee County, Illinois. It was built in 2022, so it is 3 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 75 vehicles a day, roughly 3% of them trucks, projected to reach 75 by 2030. The structure is 71 ft (21.6 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUnion Road
CrossesTrib to Green River
Location.05MI E Downey RD
RouteCounty Highway 0
Coordinates41.64998, -89.41969
Functional classRural Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating90.4 US tons
Inventory rating70.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length71 ft (21.6 m)
Longest span68 ft (20.7 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2017)
Projected traffic75 by 2030
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Union Road over Trib to Green River built?

It was built in 2022, making it 3 years old in 2025.

What condition is Union Road over Trib to Green River 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 February 2025.

How much traffic does Union Road over Trib to Green River carry?

About 75 vehicles per day (2017 count), of which roughly 3% are trucks.

How long is Union Road over Trib to Green River?

The structure is 71 ft (21.6 m) long with a longest span of 68 ft (20.7 m) and a deck 28 ft wide.

Who owns Union Road over Trib to Green River?

It is owned by the Town or Township Highway Agency.