US Bridges

TR 108A over Wolf Creek

Good

Livingston County, Illinois · 3 MI NW Pontiac · Structure no. 053323100000000

Built
1963
62 years old
Condition
Good
inspected August 2023
Type
Slab
Concrete Continuous
Length
92 ft
3 main spans
Daily traffic
275
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 108A over Wolf Creek is a concrete continuous slab carrying TR 108A over Wolf Creek in Livingston County, Illinois. It was built in 1963, so it is 62 years old, older 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 3% of them trucks, projected to reach 227 by 2046. The structure is 92 ft (28 m) long and 26 ft wide.

CarriesTR 108A
CrossesWolf Creek
Location3 MI NW Pontiac
RouteCounty Highway 0
Coordinates40.91717, -88.68154
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating31.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length92 ft (28 m)
Longest span35 ft (10.7 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2023)
Projected traffic227 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 108A over Wolf Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is TR 108A over Wolf Creek 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 August 2023.

How much traffic does TR 108A over Wolf Creek carry?

About 275 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is TR 108A over Wolf Creek?

The structure is 92 ft (28 m) long with a longest span of 35 ft (10.7 m) and a deck 26 ft wide.

Who owns TR 108A over Wolf Creek?

It is owned by the Town or Township Highway Agency.