US Bridges

Ill 3 over Kaskaskia River

Fair

Randolph County, Illinois · In Evansville · Structure no. 079003600000000

Built
1971
54 years old, rebuilt 2010
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
970 ft
7 main spans
Daily traffic
3,350
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 3 over Kaskaskia River is a steel continuous stringer/multi-beam or girder carrying Ill 3 over Kaskaskia River in Randolph County, Illinois. It was built in 1971 and reconstructed in 2010, so it is 54 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 3,350 vehicles a day, roughly 12% of them trucks, projected to reach 3,030 by 2046. The structure is 970 ft (295.7 m) long and 46 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesIll 3
CrossesKaskaskia River
LocationIn Evansville
RouteState Highway 3
CountyRandolph County
StateIllinois
Coordinates38.08988, -89.9448
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length970 ft (295.7 m)
Longest span231 ft (70.4 m)
Deck width46 ft (14 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,350 (2023)
Projected traffic3,030 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Ill 3 over Kaskaskia River built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2010.

What condition is Ill 3 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 September 2023.

How much traffic does Ill 3 over Kaskaskia River carry?

About 3,350 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Ill 3 over Kaskaskia River?

The structure is 970 ft (295.7 m) long with a longest span of 231 ft (70.4 m) and a deck 46 ft wide.

Who owns Ill 3 over Kaskaskia River?

It is owned by the State Highway Agency.