US Bridges

TR-168 over Fish Lake Ditch

FairPosted for load

Fayette County, Illinois · 2.7 MI S Vandalia · Structure no. 026331700000000

Built
1979
46 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
25
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR-168 over Fish Lake Ditch is a steel stringer/multi-beam or girder carrying TR-168 over Fish Lake Ditch in Fayette County, Illinois. It was built in 1979, so it is 46 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, roughly 8% of them trucks, projected to reach 26 by 2046. The structure is 50 ft (15.2 m) long and 29 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesTR-168
CrossesFish Lake Ditch
Location2.7 MI S Vandalia
RouteCounty Highway 0
CountyFayette County
StateIllinois
Coordinates38.91514, -89.12748
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating19 US tons
Inventory rating10.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span47 ft (14.3 m)
Deck width29 ft (8.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic26 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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-168 over Fish Lake Ditch built?

It was built in 1979, making it 46 years old in 2025.

What condition is TR-168 over Fish Lake Ditch 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-168 over Fish Lake Ditch carry?

About 25 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is TR-168 over Fish Lake Ditch?

The structure is 50 ft (15.2 m) long with a longest span of 47 ft (14.3 m) and a deck 29 ft wide.

Who owns TR-168 over Fish Lake Ditch?

It is owned by the Town or Township Highway Agency.