US Bridges

I-72/US 36 (wb) over I-172

Fair

Pike County, Illinois · I-72/I-172 Trmpt Int · Structure no. 075013000000000

Built
1991
34 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
231 ft
2 main spans
Daily traffic
7,250
2023 count
Owner
State
State Highway Agency

About this bridge

I-72/US 36 (wb) over I-172 is a steel continuous stringer/multi-beam or girder carrying I-72/US 36 (wb) over I-172 in Pike County, Illinois. It was built in 1991, so it is 34 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 7,250 vehicles a day, roughly 26% of them trucks, projected to reach 8,758 by 2046. The structure is 231 ft (70.3 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-72/US 36 (wb)
CrossesI-172
LocationI-72/I-172 Trmpt Int
RouteInterstate 72
CountyPike County
StateIllinois
Coordinates39.75253, -91.29659
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.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.8 US tons
Inventory rating46.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20
Structure length231 ft (70.3 m)
Longest span96 ft (29.4 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,250 (2023)
Projected traffic8,758 by 2046
Trucks26%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-72/US 36 (wb) over I-172 built?

It was built in 1991, making it 34 years old in 2025.

What condition is I-72/US 36 (wb) over I-172 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 2024.

How much traffic does I-72/US 36 (wb) over I-172 carry?

About 7,250 vehicles per day (2023 count), of which roughly 26% are trucks.

How long is I-72/US 36 (wb) over I-172?

The structure is 231 ft (70.3 m) long with a longest span of 96 ft (29.4 m) and a deck 43 ft wide.

Who owns I-72/US 36 (wb) over I-172?

It is owned by the State Highway Agency.