US Bridges

TR 168 over Whiskey CR

FairPosted for load

Iroquois County, Illinois · 1.1 MI S. Ch 10 · Structure no. 038414200000000

Built
1929
96 years old
Condition
Fair
inspected August 2024
Type
Truss - Thru
Steel
Length
77 ft
1 main span
Daily traffic
25
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 168 over Whiskey CR is a steel truss - thru carrying TR 168 over Whiskey CR in Iroquois County, Illinois. It was built in 1929, so it is 96 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 25 vehicles a day, projected to reach 25 by 2046. The structure is 77 ft (23.5 m) long and 18 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 168
CrossesWhiskey CR
Location1.1 MI S. Ch 10
RouteCounty Highway 0
CountyIroquois County
StateIllinois
Coordinates40.54252, -87.8404
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating17.5 US tons
Inventory rating10.4 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length77 ft (23.5 m)
Longest span70 ft (21.3 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic25 by 2046
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$221,000
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 168 over Whiskey CR built?

It was built in 1929, making it 96 years old in 2025.

What condition is TR 168 over Whiskey 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 August 2024.

How much traffic does TR 168 over Whiskey CR carry?

About 25 vehicles per day (2022 count).

How long is TR 168 over Whiskey CR?

The structure is 77 ft (23.5 m) long with a longest span of 70 ft (21.3 m) and a deck 18 ft wide.

Who owns TR 168 over Whiskey CR?

It is owned by the Town or Township Highway Agency.