US Bridges

Ill 10 over Drainage Ditch

Good

Mason County, Illinois · W. Edge of Teheran · Structure no. 063200900000000

Built
1988
37 years old
Condition
Good
inspected March 2022
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
1,200
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 10 over Drainage Ditch is a concrete culvert carrying Ill 10 over Drainage Ditch in Mason County, Illinois. It was built in 1988, so it is 37 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 1,200 vehicles a day, roughly 17% of them trucks, projected to reach 1,162 by 2046. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 13 mi (21 km).

CarriesIll 10
CrossesDrainage Ditch
LocationW. Edge of Teheran
RouteState Highway 10
Coordinates40.2247, -89.79986
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.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.6 US tons
Inventory rating40.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2023)
Projected traffic1,162 by 2046
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 Ill 10 over Drainage Ditch built?

It was built in 1988, making it 37 years old in 2025.

What condition is Ill 10 over Drainage Ditch 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 March 2022.

How much traffic does Ill 10 over Drainage Ditch carry?

About 1,200 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is Ill 10 over Drainage Ditch?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m).

Who owns Ill 10 over Drainage Ditch?

It is owned by the State Highway Agency.