US Bridges

TR 85 over Shoal Creek

Good

Montgomery County, Illinois · 6 M NW Wenonah · Structure no. 068328200000000

Built
1986
39 years old
Condition
Good
inspected November 2024
Type
Channel Beam
Concrete
Length
80 ft
3 main spans
Daily traffic
50
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 85 over Shoal Creek is a concrete channel beam carrying TR 85 over Shoal Creek in Montgomery County, Illinois. It was built in 1986, so it is 39 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 60% of them trucks, projected to reach 51 by 2046. The structure is 80 ft (24.4 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 85
CrossesShoal Creek
Location6 M NW Wenonah
RouteCounty Highway 0
Coordinates39.33435, -89.4049
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span30 ft (9.1 m)
Deck width26 ft (8 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2020)
Projected traffic51 by 2046
Trucks60%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 85 over Shoal Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is TR 85 over Shoal Creek 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 November 2024.

How much traffic does TR 85 over Shoal Creek carry?

About 50 vehicles per day (2020 count), of which roughly 60% are trucks.

How long is TR 85 over Shoal Creek?

The structure is 80 ft (24.4 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns TR 85 over Shoal Creek?

It is owned by the Town or Township Highway Agency.