US Bridges

Ill 154 over Kaskaskia River

Fair

Randolph County, Illinois · 2 MI W of Baldwin · Structure no. 079001300000000

Built
1970
55 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
893 ft
5 main spans
Daily traffic
3,900
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 154 over Kaskaskia River is a steel continuous stringer/multi-beam or girder carrying Ill 154 over Kaskaskia River in Randolph County, Illinois. It was built in 1970, so it is 55 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 3,900 vehicles a day, roughly 15% of them trucks, projected to reach 3,434 by 2046. The structure is 893 ft (272.3 m) long and 36 ft wide. If it were closed, the detour would be 60.3 mi (97 km).

Location

Open in Google Maps
CarriesIll 154
CrossesKaskaskia River
Location2 MI W of Baldwin
RouteState Highway 154
CountyRandolph County
StateIllinois
Coordinates38.18909, -89.89032
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating67.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length893 ft (272.3 m)
Longest span244 ft (74.4 m)
Deck width36 ft (11 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,900 (2023)
Projected traffic3,434 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed60.3 mi (97 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Ill 154 over Kaskaskia River built?

It was built in 1970, making it 55 years old in 2025.

What condition is Ill 154 over Kaskaskia River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does Ill 154 over Kaskaskia River carry?

About 3,900 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Ill 154 over Kaskaskia River?

The structure is 893 ft (272.3 m) long with a longest span of 244 ft (74.4 m) and a deck 36 ft wide.

Who owns Ill 154 over Kaskaskia River?

It is owned by the State Highway Agency.