US Bridges

TR-502 over Trib Lone Grove Br

Fair

Fayette County, Illinois · 1.5 MI N ST Peter · Structure no. 026322600000000

Built
1930
95 years old
Condition
Fair
inspected February 2025
Type
Other
Concrete
Length
30 ft
1 main span
Daily traffic
100
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR-502 over Trib Lone Grove Br is a concrete other carrying TR-502 over Trib Lone Grove Br in Fayette County, Illinois. It was built in 1930, so it is 95 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 100 vehicles a day, roughly 24% of them trucks, projected to reach 102 by 2046. The structure is 30 ft (9.1 m) long and 19 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesTR-502
CrossesTrib Lone Grove Br
Location1.5 MI N ST Peter
RouteCounty Highway 0
CountyFayette County
StateIllinois
Coordinates38.89072, -88.84422
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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeOther
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width19 ft (5.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic102 by 2046
Trucks24%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$92,000
NavigationNo navigation control on waterway

Frequently asked questions

When was TR-502 over Trib Lone Grove Br built?

It was built in 1930, making it 95 years old in 2025.

What condition is TR-502 over Trib Lone Grove Br 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-502 over Trib Lone Grove Br carry?

About 100 vehicles per day (2023 count), of which roughly 24% are trucks.

How long is TR-502 over Trib Lone Grove Br?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 19 ft wide.

Who owns TR-502 over Trib Lone Grove Br?

It is owned by the Town or Township Highway Agency.