US Bridges

I-72 over Trib Bay Creek

Fair

Pike County, Illinois · 1.0 MI E FAS 601 · Structure no. 075202300000000

Built
1989
36 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
8,000
2023 count
Owner
State
State Highway Agency

About this bridge

I-72 over Trib Bay Creek is a concrete culvert carrying I-72 over Trib Bay Creek 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 8,000 vehicles a day, roughly 41% of them trucks, projected to reach 8,062 by 2046. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-72
CrossesTrib Bay Creek
Location1.0 MI E FAS 601
RouteInterstate 72
Coordinates39.66984, -90.81977
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.1 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,000 (2023)
Projected traffic8,062 by 2046
Trucks41%
Lanes on structure4
Traffic directionTwo-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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I-72 over Trib Bay Creek built?

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

What condition is I-72 over Trib Bay Creek 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 August 2024.

How much traffic does I-72 over Trib Bay Creek carry?

About 8,000 vehicles per day (2023 count), of which roughly 41% are trucks.

How long is I-72 over Trib Bay Creek?

The structure is 30 ft (9.1 m) long with a longest span of 12 ft (3.7 m).

Who owns I-72 over Trib Bay Creek?

It is owned by the State Highway Agency.