US Bridges

I-72 WB over TR 70A

Fair

Pike County, Illinois · 3.7M W Barry Intchg · Structure no. 075009700000000

Built
1989
36 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
175 ft
3 main spans
Daily traffic
4,700
2023 count
Owner
State
State Highway Agency

About this bridge

I-72 WB over TR 70A is a steel continuous stringer/multi-beam or girder carrying I-72 WB over TR 70A in Pike County, Illinois. It was built in 1989, so it is 36 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 4,700 vehicles a day, roughly 35% of them trucks, projected to reach 4,872 by 2046. The structure is 175 ft (53.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-72 WB
CrossesTR 70A
Location3.7M W Barry Intchg
RouteInterstate 72
Coordinates39.71534, -91.10649
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 rating70 US tons
Inventory rating42.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length175 ft (53.2 m)
Longest span64 ft (19.6 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,700 (2023)
Projected traffic4,872 by 2046
Trucks35%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 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 WB over TR 70A built?

It was built in 1989, making it 36 years old in 2025.

What condition is I-72 WB over TR 70A 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 TR 70A carry?

About 4,700 vehicles per day (2023 count), of which roughly 35% are trucks.

How long is I-72 WB over TR 70A?

The structure is 175 ft (53.2 m) long with a longest span of 64 ft (19.6 m) and a deck 43 ft wide.

Who owns I-72 WB over TR 70A?

It is owned by the State Highway Agency.