US Bridges

Ill 115 over Kelly Creek

Fair

Ford County, Illinois · 2.03 MI S of Ill 116 · Structure no. 027007100000000

Built
1981
44 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
146 ft
3 main spans
Daily traffic
675
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 115 over Kelly Creek is a steel continuous stringer/multi-beam or girder carrying Ill 115 over Kelly Creek in Ford County, Illinois. It was built in 1981, so it is 44 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 675 vehicles a day, roughly 9% of them trucks, projected to reach 556 by 2046. The structure is 146 ft (44.5 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesIll 115
CrossesKelly Creek
Location2.03 MI S of Ill 116
RouteState Highway 115
Coordinates40.84973, -88.20459
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating33.6 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length146 ft (44.5 m)
Longest span51 ft (15.5 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic675 (2023)
Projected traffic556 by 2046
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Kelly Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Ill 115 over Kelly 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 Kelly Creek carry?

About 675 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Ill 115 over Kelly Creek?

The structure is 146 ft (44.5 m) long with a longest span of 51 ft (15.5 m) and a deck 34 ft wide.

Who owns Ill 115 over Kelly Creek?

It is owned by the State Highway Agency.