US Bridges

Ill 56 over Lake Run

Fair

Kane County, Illinois · 4 MI NE of Il 47 · Structure no. 045200200000000

Built
1958
67 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
34 ft
2 main spans
Daily traffic
21,800
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Ill 56 over Lake Run is a concrete culvert carrying Ill 56 over Lake Run in Kane County, Illinois. It was built in 1958, so it is 67 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 6 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 21,800 vehicles a day, roughly 8% of them trucks, projected to reach 10,553 by 2046. The structure is 34 ft (10.5 m) long.

Location

Open in Google Maps
CarriesIll 56
CrossesLake Run
Location4 MI NE of Il 47
RouteState Highway 56
CountyKane County
StateIllinois
Coordinates41.79454, -88.39701
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating37.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length34 ft (10.5 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,800 (2023)
Projected traffic10,553 by 2046
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 56 over Lake Run built?

It was built in 1958, making it 67 years old in 2025.

What condition is Ill 56 over Lake Run 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 August 2023.

How much traffic does Ill 56 over Lake Run carry?

About 21,800 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Ill 56 over Lake Run?

The structure is 34 ft (10.5 m) long with a longest span of 13 ft (4 m).

Who owns Ill 56 over Lake Run?

It is owned by the State Toll Authority.