US Bridges

Il 111 over Sugar Creek

Good

Macoupin County, Illinois · 4.81M S JCT Il 108 · Structure no. 059201300000000

Built
1992
33 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
900
2023 count
Owner
State
State Highway Agency

About this bridge

Il 111 over Sugar Creek is a concrete culvert carrying Il 111 over Sugar Creek in Macoupin County, Illinois. It was built in 1992, so it is 33 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 900 vehicles a day, roughly 21% of them trucks, projected to reach 909 by 2046. The structure is 40 ft (12.3 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesIl 111
CrossesSugar Creek
Location4.81M S JCT Il 108
RouteState Highway 111
Coordinates39.23332, -90.06408
Functional classRural Major 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 inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating90.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length40 ft (12.3 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic900 (2023)
Projected traffic909 by 2046
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 Il 111 over Sugar Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is Il 111 over Sugar Creek 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 Il 111 over Sugar Creek carry?

About 900 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is Il 111 over Sugar Creek?

The structure is 40 ft (12.3 m) long with a longest span of 12 ft (3.7 m).

Who owns Il 111 over Sugar Creek?

It is owned by the State Highway Agency.