US Bridges

I-74 over Ill Riv T&p RR

Fair

Tazewell County, Illinois · I-74 Ovr Illinois R · Structure no. 090000100000000

Built
1958
67 years old, rebuilt 2020
Condition
Fair
inspected October 2024
Type
Truss - Thru
Steel Continuous
Length
3,216 ft
5 main spans
Daily traffic
57,800
2023 count
Owner
State
State Highway Agency

About this bridge

I-74 over Ill Riv T&p RR is a steel continuous truss - thru carrying I-74 over Ill Riv T&p RR in Tazewell County, Illinois. It was built in 1958 and reconstructed in 2020, so it is 67 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 57,800 vehicles a day, roughly 7% of them trucks, projected to reach 50,500 by 2046. The structure is 3,216 ft (980.1 m) long and 61 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesI-74
CrossesIll Riv T&p RR
LocationI-74 Ovr Illinois R
RouteInterstate 74
CountyTazewell County
StateIllinois
Coordinates40.6926, -89.58548
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43.5 US tons
Inventory rating35.1 US tons

Structure

Structure typeTruss - Thru
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5 (+5 approach)
Design loadHS 20
Structure length3,216 ft (980.1 m)
Longest span600 ft (182.9 m)
Deck width61 ft (18.5 m)
Roadway width55 ft (16.8 m)
Vertical clearance over deck18 ft (5.4 m)

Traffic and service

Average daily traffic57,800 (2023)
Projected traffic50,500 by 2046
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway, waterway and railroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$4.7 million
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was I-74 over Ill Riv T&p RR built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2020.

What condition is I-74 over Ill Riv T&p RR 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 October 2024.

How much traffic does I-74 over Ill Riv T&p RR carry?

About 57,800 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is I-74 over Ill Riv T&p RR?

The structure is 3,216 ft (980.1 m) long with a longest span of 600 ft (182.9 m) and a deck 61 ft wide.

Who owns I-74 over Ill Riv T&p RR?

It is owned by the State Highway Agency.