US Bridges

TR 150 over Prairie CR

Good

Iroquois County, Illinois · 0.5 MI N. of US 45 · Structure no. 038325800000000

Built
2008
17 years old
Condition
Good
inspected April 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
114 ft
3 main spans
Daily traffic
50
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 150 over Prairie CR is a prestressed concrete box beam or girders - multiple carrying TR 150 over Prairie CR in Iroquois County, Illinois. It was built in 2008, so it is 17 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 50 vehicles a day, projected to reach 51 by 2046. The structure is 114 ft (34.7 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 150
CrossesPrairie CR
Location0.5 MI N. of US 45
RouteCounty Highway 0
CountyIroquois County
StateIllinois
Coordinates40.89355, -87.88476
Functional classRural Local

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 inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span40 ft (12.2 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic51 by 2046
Trucks0%
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 150 over Prairie CR built?

It was built in 2008, making it 17 years old in 2025.

What condition is TR 150 over Prairie CR 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 April 2021.

How much traffic does TR 150 over Prairie CR carry?

About 50 vehicles per day (2022 count).

How long is TR 150 over Prairie CR?

The structure is 114 ft (34.7 m) long with a longest span of 40 ft (12.2 m) and a deck 30 ft wide.

Who owns TR 150 over Prairie CR?

It is owned by the Town or Township Highway Agency.