US Bridges

I- 55 over N Br Grant Creek

Fair

Will County, Illinois · 4.8 M S of US 6 · Structure no. 099030000000000

Built
1993
32 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
26,450
2024 count
Owner
State
State Highway Agency

About this bridge

I- 55 over N Br Grant Creek is a concrete culvert carrying I- 55 over N Br Grant Creek in Will County, Illinois. It was built in 1993, so it is 32 years old, younger 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 26,450 vehicles a day, roughly 6% of them trucks, projected to reach 31,104 by 2046. The structure is 30 ft (9.1 m) long.

CarriesI- 55
CrossesN Br Grant Creek
Location4.8 M S of US 6
RouteInterstate 55
Coordinates41.38623, -88.19262
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating37.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,450 (2024)
Projected traffic31,104 by 2046
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 over N Br Grant Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is I- 55 over N Br Grant 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 April 2024.

How much traffic does I- 55 over N Br Grant Creek carry?

About 26,450 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is I- 55 over N Br Grant Creek?

The structure is 30 ft (9.1 m) long with a longest span of 14 ft (4.3 m).

Who owns I- 55 over N Br Grant Creek?

It is owned by the State Highway Agency.