US Bridges

I-55/70 over Brush Creek

Fair

Madison County, Illinois · 0.49 E Ill 157 · Structure no. 060201900000000

Built
1962
63 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
46,000
2023 count
Owner
State
State Highway Agency

About this bridge

I-55/70 over Brush Creek is a concrete continuous culvert carrying I-55/70 over Brush Creek in Madison County, Illinois. It was built in 1962, so it is 63 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 46,000 vehicles a day, roughly 26% of them trucks, projected to reach 49,006 by 2046. The structure is 23 ft (7.1 m) long. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesI-55/70
CrossesBrush Creek
Location0.49 E Ill 157
RouteInterstate 55
CountyMadison County
StateIllinois
Coordinates38.68671, -90.00513
Functional classUrban Principal Arterial - Interstate

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 inspectionDecember 2024
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 rating98.2 US tons
Inventory rating98.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length23 ft (7.1 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic46,000 (2023)
Projected traffic49,006 by 2046
Trucks26%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-55/70 over Brush Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is I-55/70 over Brush Creek 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 December 2024.

How much traffic does I-55/70 over Brush Creek carry?

About 46,000 vehicles per day (2023 count), of which roughly 26% are trucks.

How long is I-55/70 over Brush Creek?

The structure is 23 ft (7.1 m) long with a longest span of 10 ft (3 m).

Who owns I-55/70 over Brush Creek?

It is owned by the State Highway Agency.