US Bridges

TR-290 over Iroquois River

Good

Iroquois County, Illinois · 2.5 Mi.N. of Watseka · Structure no. 038463600000000

Built
2018
7 years old
Condition
Good
inspected September 2021
Type
Slab
Concrete Continuous
Length
70 ft
3 main spans
Daily traffic
1,100
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR-290 over Iroquois River is a concrete continuous slab carrying TR-290 over Iroquois River in Iroquois County, Illinois. It was built in 2018, so it is 7 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,100 vehicles a day, roughly 21% of them trucks, projected to reach 960 by 2046. The structure is 70 ft (21.3 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesTR-290
CrossesIroquois River
Location2.5 Mi.N. of Watseka
RouteCounty Highway 0
CountyIroquois County
StateIllinois
Coordinates40.81273, -87.71084
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length70 ft (21.3 m)
Longest span22 ft (6.8 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2022)
Projected traffic960 by 2046
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was TR-290 over Iroquois River built?

It was built in 2018, making it 7 years old in 2025.

What condition is TR-290 over Iroquois River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2021.

How much traffic does TR-290 over Iroquois River carry?

About 1,100 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is TR-290 over Iroquois River?

The structure is 70 ft (21.3 m) long with a longest span of 22 ft (6.8 m) and a deck 30 ft wide.

Who owns TR-290 over Iroquois River?

It is owned by the Town or Township Highway Agency.