US Bridges

Old Il 4 over Shearles Br Tributry

Good

Macoupin County, Illinois · 1.6M S Il 4 S Girard · Structure no. 059250200000000

Built
2010
15 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
150
2021 count
Owner
State
State Highway Agency

About this bridge

Old Il 4 over Shearles Br Tributry is a concrete culvert carrying Old Il 4 over Shearles Br Tributry in Macoupin County, Illinois. It was built in 2010, so it is 15 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 150 vehicles a day, roughly 8% of them trucks, projected to reach 152 by 2046. The structure is 22 ft (6.7 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesOld Il 4
CrossesShearles Br Tributry
Location1.6M S Il 4 S Girard
RouteCounty Highway 0
Coordinates39.41078, -89.78412
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.4 US tons
Inventory rating39.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span11 ft (3.3 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2021)
Projected traffic152 by 2046
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Old Il 4 over Shearles Br Tributry built?

It was built in 2010, making it 15 years old in 2025.

What condition is Old Il 4 over Shearles Br Tributry 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 August 2024.

How much traffic does Old Il 4 over Shearles Br Tributry carry?

About 150 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Old Il 4 over Shearles Br Tributry?

The structure is 22 ft (6.7 m) long with a longest span of 11 ft (3.3 m) and a deck 32 ft wide.

Who owns Old Il 4 over Shearles Br Tributry?

It is owned by the State Highway Agency.