US Bridges

I-72 (wb) over Illinois River

Fair

Pike County, Illinois · 3.7M W Il 100 · Structure no. 075012300000000

Built
1988
37 years old
Condition
Fair
inspected March 2024
Type
Segmental Box Girder
Prestressed Concrete
Length
3,203 ft
11 main spans
Daily traffic
4,950
2023 count
Owner
State
State Highway Agency

About this bridge

I-72 (wb) over Illinois River is a prestressed concrete segmental box girder carrying I-72 (wb) over Illinois River in Pike County, Illinois. It was built in 1988, so it is 37 years old, younger 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 4,950 vehicles a day, roughly 35% of them trucks, projected to reach 5,104 by 2046. The structure is 3,203 ft (976.4 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-72 (wb)
CrossesIllinois River
Location3.7M W Il 100
RouteInterstate 72
CountyPike County
StateIllinois
Coordinates39.68559, -90.64399
Functional classRural Principal Arterial - Interstate

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 protection8 Very GoodNo problems noted.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeSegmental Box Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20
Structure length3,203 ft (976.4 m)
Longest span550 ft (167.6 m)
Deck width42 ft (12.8 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,950 (2023)
Projected traffic5,104 by 2046
Trucks35%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was I-72 (wb) over Illinois River built?

It was built in 1988, making it 37 years old in 2025.

What condition is I-72 (wb) over Illinois 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 March 2024.

How much traffic does I-72 (wb) over Illinois River carry?

About 4,950 vehicles per day (2023 count), of which roughly 35% are trucks.

How long is I-72 (wb) over Illinois River?

The structure is 3,203 ft (976.4 m) long with a longest span of 550 ft (167.6 m) and a deck 42 ft wide.

Who owns I-72 (wb) over Illinois River?

It is owned by the State Highway Agency.