US Bridges

Il 10 over Ditch

Fair

Mason County, Illinois · 1.50M S US 136 · Structure no. 063702900000000

Built
1970
55 years old
Condition
Fair
inspected July 2024
Type
Culvert
Steel
Length
22 ft
2 main spans
Daily traffic
550
2023 count
Owner
State
State Highway Agency

About this bridge

Il 10 over Ditch is a steel culvert carrying Il 10 over Ditch in Mason County, Illinois. It was built in 1970, so it is 55 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 5 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 550 vehicles a day, roughly 18% of them trucks, projected to reach 530 by 2046. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIl 10
CrossesDitch
Location1.50M S US 136
RouteState Highway 10
CountyMason County
StateIllinois
Coordinates40.2746, -89.84748
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (2023)
Projected traffic530 by 2046
Trucks18%
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 Il 10 over Ditch built?

It was built in 1970, making it 55 years old in 2025.

What condition is Il 10 over 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 July 2024.

How much traffic does Il 10 over Ditch carry?

About 550 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is Il 10 over Ditch?

The structure is 22 ft (6.7 m) long with a longest span of 9 ft (2.7 m).

Who owns Il 10 over Ditch?

It is owned by the State Highway Agency.