US Bridges

Adams ST over I-74

Fair

Peoria County, Illinois · Over Rmps G-1 2 &3 · Structure no. 072018200000000

Built
2005
20 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
296 ft
3 main spans
Daily traffic
3,600
2022 count
Owner
State
State Highway Agency

About this bridge

Adams ST over I-74 is a steel continuous stringer/multi-beam or girder carrying Adams ST over I-74 in Peoria County, Illinois. It was built in 2005, so it is 20 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 3,600 vehicles a day, roughly 7% of them trucks, projected to reach 6,666 by 2046. The structure is 296 ft (90.3 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesAdams ST
CrossesI-74
LocationOver Rmps G-1 2 &3
RouteState Highway 29
CountyPeoria County
StateIllinois
Coordinates40.69401, -89.58612
Functional classUrban 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.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 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 alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating36.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length296 ft (90.3 m)
Longest span117 ft (35.7 m)
Deck width55 ft (16.7 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,600 (2022)
Projected traffic6,666 by 2046
Trucks7%
Lanes on structure3
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.2 mi (2 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 Adams ST over I-74 built?

It was built in 2005, making it 20 years old in 2025.

What condition is Adams ST 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 September 2024.

How much traffic does Adams ST over I-74 carry?

About 3,600 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is Adams ST over I-74?

The structure is 296 ft (90.3 m) long with a longest span of 117 ft (35.7 m) and a deck 55 ft wide.

Who owns Adams ST over I-74?

It is owned by the State Highway Agency.