US Bridges

Wolf Rd. over Reloc.Flag Creek

Fair

Cook County, Illinois · 0.2M.N.OF I-55 · Structure no. 016324500000000

Built
1991
34 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
9,850
2022 count
Owner
County
County Highway Agency

About this bridge

Wolf Rd. over Reloc.Flag Creek is a concrete culvert carrying Wolf Rd. over Reloc.Flag Creek in Cook County, Illinois. It was built in 1991, so it is 34 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 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 9,850 vehicles a day, roughly 3% of them trucks, projected to reach 11,009 by 2046. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesWolf Rd.
CrossesReloc.Flag Creek
Location0.2M.N.OF I-55
CountyCook County
StateIllinois
Coordinates41.76125, -87.89663
Functional classUrban Minor Arterial

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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,850 (2022)
Projected traffic11,009 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Wolf Rd. over Reloc.Flag Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Wolf Rd. over Reloc.Flag 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 Wolf Rd. over Reloc.Flag Creek carry?

About 9,850 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Wolf Rd. over Reloc.Flag Creek?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.6 m).

Who owns Wolf Rd. over Reloc.Flag Creek?

It is owned by the County Highway Agency.