US Bridges

I-72 (eb) over Spring Creek

Fair

Macon County, Illinois · 1.25 MI E Forsyth · Structure no. 058008200000000

Built
1975
50 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
108 ft
2 main spans
Daily traffic
6,150
2023 count
Owner
State
State Highway Agency

About this bridge

I-72 (eb) over Spring Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying I-72 (eb) over Spring Creek in Macon 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 6,150 vehicles a day, roughly 28% of them trucks, projected to reach 6,060 by 2046. The structure is 108 ft (32.9 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-72 (eb)
CrossesSpring Creek
Location1.25 MI E Forsyth
RouteInterstate 72
CountyMacon County
StateIllinois
Coordinates39.90912, -88.9263
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
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
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.5 US tons
Inventory rating53.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length108 ft (32.9 m)
Longest span51 ft (15.5 m)
Deck width44 ft (13.4 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,150 (2023)
Projected traffic6,060 by 2046
Trucks28%
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 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 (eb) over Spring Creek built?

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

What condition is I-72 (eb) over Spring 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 March 2024.

How much traffic does I-72 (eb) over Spring Creek carry?

About 6,150 vehicles per day (2023 count), of which roughly 28% are trucks.

How long is I-72 (eb) over Spring Creek?

The structure is 108 ft (32.9 m) long with a longest span of 51 ft (15.5 m) and a deck 44 ft wide.

Who owns I-72 (eb) over Spring Creek?

It is owned by the State Highway Agency.