US Bridges

I-74 RAMP17.79&17. over I-74 & Rmp 17.17

Fair

Champaign County, Illinois · E of Urbana · Structure no. 010003300000000

Built
1960
65 years old, rebuilt 1991
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
219 ft
4 main spans
Daily traffic
16,350
2023 count
Owner
State
State Highway Agency

About this bridge

I-74 RAMP17.79&17. over I-74 & Rmp 17.17 is a prestressed concrete stringer/multi-beam or girder carrying I-74 RAMP17.79&17. over I-74 & Rmp 17.17 in Champaign County, Illinois. It was built in 1960 and reconstructed in 1991, so it is 65 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 6 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 16,350 vehicles a day, roughly 7% of them trucks, projected to reach 15,500 by 2046. The structure is 219 ft (66.7 m) long and 57 ft wide.

Location

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CarriesI-74 RAMP17.79&17.
CrossesI-74 & Rmp 17.17
LocationE of Urbana
CountyChampaign County
StateIllinois
Coordinates40.12161, -88.17319
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionNovember 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 alignment7: Better than present minimum criteria
Operating rating41.4 US tons
Inventory rating24.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length219 ft (66.7 m)
Longest span74 ft (22.6 m)
Deck width57 ft (17.4 m)
Roadway width49 ft (14.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,350 (2023)
Projected traffic15,500 by 2046
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 I-74 RAMP17.79&17. over I-74 & Rmp 17.17 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1991.

What condition is I-74 RAMP17.79&17. over I-74 & Rmp 17.17 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 November 2024.

How much traffic does I-74 RAMP17.79&17. over I-74 & Rmp 17.17 carry?

About 16,350 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is I-74 RAMP17.79&17. over I-74 & Rmp 17.17?

The structure is 219 ft (66.7 m) long with a longest span of 74 ft (22.6 m) and a deck 57 ft wide.

Who owns I-74 RAMP17.79&17. over I-74 & Rmp 17.17?

It is owned by the State Highway Agency.