US Bridges

TR 18 over Wolf Run

Fair

Piatt County, Illinois · 2.0 MI SE Cisco · Structure no. 074302700000000

Built
1964
61 years old
Condition
Fair
inspected February 2025
Type
Channel Beam
Concrete
Length
32 ft
1 main span
Daily traffic
175
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 18 over Wolf Run is a concrete channel beam carrying TR 18 over Wolf Run in Piatt County, Illinois. It was built in 1964, so it is 61 years old, older 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 6 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 175 vehicles a day, roughly 6% of them trucks, projected to reach 177 by 2046. The structure is 32 ft (9.7 m) long and 26 ft wide.

Location

Open in Google Maps
CarriesTR 18
CrossesWolf Run
Location2.0 MI SE Cisco
RouteCounty Highway 0
CountyPiatt County
StateIllinois
Coordinates40.00786, -88.68808
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.4 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 15
Structure length32 ft (9.7 m)
Longest span31 ft (9.4 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2020)
Projected traffic177 by 2046
Trucks6%
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 18 over Wolf Run built?

It was built in 1964, making it 61 years old in 2025.

What condition is TR 18 over Wolf Run 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 February 2025.

How much traffic does TR 18 over Wolf Run carry?

About 175 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is TR 18 over Wolf Run?

The structure is 32 ft (9.7 m) long with a longest span of 31 ft (9.4 m) and a deck 26 ft wide.

Who owns TR 18 over Wolf Run?

It is owned by the Town or Township Highway Agency.