US Bridges

Ill 117 over I-74

Fair

Woodford County, Illinois · JCT I-74 & Ill 117 · Structure no. 102001200000000

Built
1964
61 years old, rebuilt 1998
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
227 ft
4 main spans
Daily traffic
5,250
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 117 over I-74 is a steel continuous stringer/multi-beam or girder carrying Ill 117 over I-74 in Woodford County, Illinois. It was built in 1964 and reconstructed in 1998, so it is 61 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 5,250 vehicles a day, roughly 12% of them trucks, projected to reach 5,454 by 2046. The structure is 227 ft (69.2 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesIll 117
CrossesI-74
LocationJCT I-74 & Ill 117
RouteState Highway 117
Coordinates40.6226, -89.27483
Functional classRural Minor Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
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
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71.4 US tons
Inventory rating42.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length227 ft (69.2 m)
Longest span69 ft (21 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,250 (2023)
Projected traffic5,454 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed5 mi (8 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ill 117 over I-74 built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1998.

What condition is Ill 117 over I-74 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 July 2024.

How much traffic does Ill 117 over I-74 carry?

About 5,250 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Ill 117 over I-74?

The structure is 227 ft (69.2 m) long with a longest span of 69 ft (21 m) and a deck 43 ft wide.

Who owns Ill 117 over I-74?

It is owned by the State Highway Agency.