US Bridges

TR 158 over So Br Rock Creek

Fair

Kankakee County, Illinois · 1 MI E Manteno · Structure no. 046337200000000

Built
1981
44 years old
Condition
Fair
inspected June 2024
Type
Channel Beam
Concrete
Length
83 ft
3 main spans
Daily traffic
2,750
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 158 over So Br Rock Creek is a concrete channel beam carrying TR 158 over So Br Rock Creek in Kankakee County, Illinois. It was built in 1981, so it is 44 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 2,750 vehicles a day, roughly 12% of them trucks, projected to reach 2,805 by 2046. The structure is 83 ft (25.3 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 158
CrossesSo Br Rock Creek
Location1 MI E Manteno
CountyKankakee County
StateIllinois
Coordinates41.25018, -87.81961
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length83 ft (25.3 m)
Longest span27 ft (8.2 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,750 (2021)
Projected traffic2,805 by 2046
Trucks12%
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 158 over So Br Rock Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is TR 158 over So Br Rock Creek 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 158 over So Br Rock Creek carry?

About 2,750 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is TR 158 over So Br Rock Creek?

The structure is 83 ft (25.3 m) long with a longest span of 27 ft (8.2 m) and a deck 27 ft wide.

Who owns TR 158 over So Br Rock Creek?

It is owned by the Town or Township Highway Agency.