US Bridges

Il 159 over Trib to Richland Crk

Good

St. Clair County, Illinois · 0.47MI. N Il 156 · Structure no. 082204100000000

Built
2006
19 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
5,300
2023 count
Owner
State
State Highway Agency

About this bridge

Il 159 over Trib to Richland Crk is a concrete culvert carrying Il 159 over Trib to Richland Crk in St. Clair 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 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 5,300 vehicles a day, roughly 9% of them trucks, projected to reach 5,505 by 2046. The structure is 28 ft (8.6 m) long. If it were closed, the detour would be 31.7 mi (51 km).

Location

Open in Google Maps
CarriesIl 159
CrossesTrib to Richland Crk
Location0.47MI. N Il 156
RouteState Highway 159
CountySt. Clair County
StateIllinois
Coordinates38.32966, -89.99504
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length28 ft (8.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,300 (2023)
Projected traffic5,505 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.7 mi (51 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Il 159 over Trib to Richland Crk built?

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

What condition is Il 159 over Trib to Richland Crk 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 April 2023.

How much traffic does Il 159 over Trib to Richland Crk carry?

About 5,300 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Il 159 over Trib to Richland Crk?

The structure is 28 ft (8.6 m) long with a longest span of 12 ft (3.7 m).

Who owns Il 159 over Trib to Richland Crk?

It is owned by the State Highway Agency.