US Bridges

I-72 / US 36 over Clear Creek Trib

Fair

Sangamon County, Illinois · 2.6M E Buffalo Intch · Structure no. 084200600000000

Built
1975
50 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
14,300
2023 count
Owner
State
State Highway Agency

About this bridge

I-72 / US 36 over Clear Creek Trib is a concrete culvert carrying I-72 / US 36 over Clear Creek Trib in Sangamon County, Illinois. It was built in 1975, so it is 50 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 5 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 14,300 vehicles a day, roughly 20% of them trucks, projected to reach 14,544 by 2046. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesI-72 / US 36
CrossesClear Creek Trib
Location2.6M E Buffalo Intch
RouteInterstate 72
CountySangamon County
StateIllinois
Coordinates39.83876, -89.35871
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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.4 US tons
Inventory rating55 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length26 ft (7.9 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 traffic14,300 (2023)
Projected traffic14,544 by 2046
Trucks20%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 / US 36 over Clear Creek Trib built?

It was built in 1975, making it 50 years old in 2025.

What condition is I-72 / US 36 over Clear Creek Trib 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 January 2025.

How much traffic does I-72 / US 36 over Clear Creek Trib carry?

About 14,300 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is I-72 / US 36 over Clear Creek Trib?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).

Who owns I-72 / US 36 over Clear Creek Trib?

It is owned by the State Highway Agency.