US Bridges

Ill 115 over Trib of Spring Creek

Fair

Ford County, Illinois · 7.76 MI N of Ill 9 · Structure no. 027008200000000

Built
1987
38 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
1,050
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 115 over Trib of Spring Creek is a prestressed concrete stringer/multi-beam or girder carrying Ill 115 over Trib of Spring Creek in Ford County, Illinois. It was built in 1987, so it is 38 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 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 1,050 vehicles a day, roughly 13% of them trucks, projected to reach 1,061 by 2046. The structure is 73 ft (22.1 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesIll 115
CrossesTrib of Spring Creek
Location7.76 MI N of Ill 9
RouteState Highway 115
Coordinates40.57065, -88.17547
Functional classRural Major Collector

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 inspectionFebruary 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.4 US tons
Inventory rating42.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length73 ft (22.1 m)
Longest span70 ft (21.2 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,050 (2023)
Projected traffic1,061 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

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 Ill 115 over Trib of Spring Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Ill 115 over Trib of 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 February 2024.

How much traffic does Ill 115 over Trib of Spring Creek carry?

About 1,050 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is Ill 115 over Trib of Spring Creek?

The structure is 73 ft (22.1 m) long with a longest span of 70 ft (21.2 m) and a deck 33 ft wide.

Who owns Ill 115 over Trib of Spring Creek?

It is owned by the State Highway Agency.