US Bridges

TR 234 over May CR

Good

Macoupin County, Illinois · 3MI S Macoupin Sta · Structure no. 059329800000000

Built
1984
41 years old
Condition
Good
inspected February 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
91 ft
3 main spans
Daily traffic
100
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 234 over May CR is a prestressed concrete box beam or girders - multiple carrying TR 234 over May CR in Macoupin County, Illinois. It was built in 1984, so it is 41 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 35% of them trucks, projected to reach 101 by 2046. The structure is 91 ft (27.7 m) long and 28 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesTR 234
CrossesMay CR
Location3MI S Macoupin Sta
RouteCounty Highway 0
Coordinates39.17461, -89.96172
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length91 ft (27.7 m)
Longest span39 ft (11.9 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2021)
Projected traffic101 by 2046
Trucks35%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 234 over May CR built?

It was built in 1984, making it 41 years old in 2025.

What condition is TR 234 over May CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.

How much traffic does TR 234 over May CR carry?

About 100 vehicles per day (2021 count), of which roughly 35% are trucks.

How long is TR 234 over May CR?

The structure is 91 ft (27.7 m) long with a longest span of 39 ft (11.9 m) and a deck 28 ft wide.

Who owns TR 234 over May CR?

It is owned by the Town or Township Highway Agency.