US Bridges

TR 323 over Br Sugar Creek

Good

McLean County, Illinois · 2.5 MI Nnw Shirley · Structure no. 057391800000000

Built
1992
33 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete Continuous
Length
88 ft
3 main spans
Daily traffic
1,400
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 323 over Br Sugar Creek is a concrete continuous slab carrying TR 323 over Br Sugar Creek in McLean County, Illinois. It was built in 1992, so it is 33 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 1,400 vehicles a day, roughly 6% of them trucks, projected to reach 1,061 by 2046. The structure is 88 ft (26.9 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTR 323
CrossesBr Sugar Creek
Location2.5 MI Nnw Shirley
RouteCounty Highway 0
Coordinates40.45836, -89.08204
Functional classRural Major 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length88 ft (26.9 m)
Longest span33 ft (10.1 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2024)
Projected traffic1,061 by 2046
Trucks6%
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 TR 323 over Br Sugar Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is TR 323 over Br Sugar 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 March 2024.

How much traffic does TR 323 over Br Sugar Creek carry?

About 1,400 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is TR 323 over Br Sugar Creek?

The structure is 88 ft (26.9 m) long with a longest span of 33 ft (10.1 m) and a deck 28 ft wide.

Who owns TR 323 over Br Sugar Creek?

It is owned by the Town or Township Highway Agency.