US Bridges

TR 4 a over Stream

Good

Coles County, Illinois · 4 MI NW Cooks Mill · Structure no. 015334500000000

Built
1990
35 years old
Condition
Good
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
275
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 4 a over Stream is a prestressed concrete box beam or girders - multiple carrying TR 4 a over Stream in Coles County, Illinois. It was built in 1990, so it is 35 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 275 vehicles a day, roughly 4% of them trucks, projected to reach 227 by 2046. The structure is 40 ft (12.3 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesTR 4 a
CrossesStream
Location4 MI NW Cooks Mill
RouteCounty Highway 0
Coordinates39.61241, -88.47179
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum 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 rating48.9 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length40 ft (12.3 m)
Longest span36 ft (11 m)
Deck width27 ft (8.3 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2024)
Projected traffic227 by 2046
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 4 a over Stream built?

It was built in 1990, making it 35 years old in 2025.

What condition is TR 4 a over Stream 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 December 2023.

How much traffic does TR 4 a over Stream carry?

About 275 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is TR 4 a over Stream?

The structure is 40 ft (12.3 m) long with a longest span of 36 ft (11 m) and a deck 27 ft wide.

Who owns TR 4 a over Stream?

It is owned by the Town or Township Highway Agency.