US Bridges

TR 136 over Trib to Smith Branch

Good

Livingston County, Illinois · 183 N 1750 E · Structure no. 053413100000000

Built
1992
33 years old
Condition
Good
inspected September 2021
Type
Slab
Concrete Continuous
Length
52 ft
3 main spans
Daily traffic
375
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 136 over Trib to Smith Branch is a concrete continuous slab carrying TR 136 over Trib to Smith Branch in Livingston County, Illinois. It was built in 1992, so it is 33 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 375 vehicles a day, roughly 15% of them trucks, projected to reach 278 by 2046. The structure is 52 ft (15.9 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesTR 136
CrossesTrib to Smith Branch
Location183 N 1750 E
RouteCounty Highway 0
Coordinates40.8942, -88.59511
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 inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length52 ft (15.9 m)
Longest span19 ft (5.8 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic375 (2023)
Projected traffic278 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 136 over Trib to Smith Branch built?

It was built in 1992, making it 33 years old in 2025.

What condition is TR 136 over Trib to Smith Branch 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 136 over Trib to Smith Branch carry?

About 375 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is TR 136 over Trib to Smith Branch?

The structure is 52 ft (15.9 m) long with a longest span of 19 ft (5.8 m) and a deck 26 ft wide.

Who owns TR 136 over Trib to Smith Branch?

It is owned by the Town or Township Highway Agency.