US Bridges

TR 3 over Rock Cr.

Fair

Kankakee County, Illinois · 1 MI W I-57 Will Co. · Structure no. 046336500000000

Built
1980
45 years old
Condition
Fair
inspected June 2024
Type
Channel Beam
Concrete
Length
86 ft
3 main spans
Daily traffic
1,300
2021 count
Owner
County
County Highway Agency

About this bridge

TR 3 over Rock Cr. is a concrete channel beam carrying TR 3 over Rock Cr. in Kankakee County, Illinois. It was built in 1980, so it is 45 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 1,300 vehicles a day, roughly 8% of them trucks, projected to reach 1,326 by 2046. The structure is 86 ft (26.2 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 3
CrossesRock Cr.
Location1 MI W I-57 Will Co.
RouteCounty Highway 0
CountyKankakee County
StateIllinois
Coordinates41.29503, -87.85055
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating38.6 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length86 ft (26.2 m)
Longest span28 ft (8.5 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2021)
Projected traffic1,326 by 2046
Trucks8%
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

OwnerCounty Highway Agency
Maintained byCounty 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 3 over Rock Cr. built?

It was built in 1980, making it 45 years old in 2025.

What condition is TR 3 over Rock Cr. 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 June 2024.

How much traffic does TR 3 over Rock Cr. carry?

About 1,300 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is TR 3 over Rock Cr.?

The structure is 86 ft (26.2 m) long with a longest span of 28 ft (8.5 m) and a deck 27 ft wide.

Who owns TR 3 over Rock Cr.?

It is owned by the County Highway Agency.