US Bridges

TR 125 over Drainage Ditch

Fair

Alexander County, Illinois · 1.5 MI W. of Unity · Structure no. 002304900000000

Built
1977
48 years old
Condition
Fair
inspected April 2024
Type
Channel Beam
Concrete
Length
99 ft
3 main spans
Daily traffic
125
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 125 over Drainage Ditch is a concrete channel beam carrying TR 125 over Drainage Ditch in Alexander County, Illinois. It was built in 1977, so it is 48 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 125 vehicles a day, roughly 25% of them trucks, projected to reach 101 by 2046. The structure is 99 ft (30.2 m) long and 23 ft wide.

Location

Open in Google Maps
CarriesTR 125
CrossesDrainage Ditch
Location1.5 MI W. of Unity
RouteCounty Highway 0
CountyAlexander County
StateIllinois
Coordinates37.15883, -89.30163
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.5 US tons
Inventory rating31.4 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length99 ft (30.2 m)
Longest span32 ft (9.8 m)
Deck width23 ft (6.9 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2022)
Projected traffic101 by 2046
Trucks25%
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 125 over Drainage Ditch built?

It was built in 1977, making it 48 years old in 2025.

What condition is TR 125 over Drainage 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 April 2024.

How much traffic does TR 125 over Drainage Ditch carry?

About 125 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is TR 125 over Drainage Ditch?

The structure is 99 ft (30.2 m) long with a longest span of 32 ft (9.8 m) and a deck 23 ft wide.

Who owns TR 125 over Drainage Ditch?

It is owned by the Town or Township Highway Agency.