US Bridges

TR 23 over Trib to Kaskaskia Ri

Good

Coles County, Illinois · 3 MI N Cooks Mills · Structure no. 015343400000000

Built
2021
4 years old
Condition
Good
inspected January 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
75
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 23 over Trib to Kaskaskia Ri is a prestressed concrete box beam or girders - multiple carrying TR 23 over Trib to Kaskaskia Ri in Coles County, Illinois. It was built in 2021, so it is 4 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 11% of them trucks, projected to reach 126 by 2046. The structure is 70 ft (21.3 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesTR 23
CrossesTrib to Kaskaskia Ri
Location3 MI N Cooks Mills
RouteCounty Highway 0
Coordinates39.62261, -88.40955
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating48.9 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length70 ft (21.3 m)
Longest span67 ft (20.4 m)
Deck width27 ft (8.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2024)
Projected traffic126 by 2046
Trucks11%
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 23 over Trib to Kaskaskia Ri built?

It was built in 2021, making it 4 years old in 2025.

What condition is TR 23 over Trib to Kaskaskia Ri 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 January 2023.

How much traffic does TR 23 over Trib to Kaskaskia Ri carry?

About 75 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is TR 23 over Trib to Kaskaskia Ri?

The structure is 70 ft (21.3 m) long with a longest span of 67 ft (20.4 m) and a deck 27 ft wide.

Who owns TR 23 over Trib to Kaskaskia Ri?

It is owned by the Town or Township Highway Agency.