US Bridges

Gilles RD over I-74

Fair

Peoria County, Illinois · 1.5 MI E of Kickapoo · Structure no. 072007000000000

Built
1963
62 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
252 ft
4 main spans
Daily traffic
250
2022 count
Owner
State
State Highway Agency

About this bridge

Gilles RD over I-74 is a steel continuous stringer/multi-beam or girder carrying Gilles RD over I-74 in Peoria County, Illinois. It was built in 1963, so it is 62 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 250 vehicles a day, roughly 16% of them trucks, projected to reach 278 by 2046. The structure is 252 ft (76.8 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesGilles RD
CrossesI-74
Location1.5 MI E of Kickapoo
RouteCounty Highway 0
CountyPeoria County
StateIllinois
Coordinates40.76398, -89.72771
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64.3 US tons
Inventory rating37.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length252 ft (76.8 m)
Longest span76 ft (23.2 m)
Deck width26 ft (7.8 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2022)
Projected traffic278 by 2046
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Gilles RD over I-74 built?

It was built in 1963, making it 62 years old in 2025.

What condition is Gilles RD 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 January 2024.

How much traffic does Gilles RD over I-74 carry?

About 250 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is Gilles RD over I-74?

The structure is 252 ft (76.8 m) long with a longest span of 76 ft (23.2 m) and a deck 26 ft wide.

Who owns Gilles RD over I-74?

It is owned by the State Highway Agency.