US Bridges

Il 23/US 52 over Crooked Leg Creek

Good

LaSalle County, Illinois · 0.27M E of IL23/US52 · Structure no. 050024000000000

Built
2010
15 years old
Condition
Good
inspected March 2021
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
114 ft
3 main spans
Daily traffic
2,300
2023 count
Owner
State
State Highway Agency

About this bridge

Il 23/US 52 over Crooked Leg Creek is a steel continuous stringer/multi-beam or girder carrying Il 23/US 52 over Crooked Leg Creek in LaSalle County, Illinois. It was built in 2010, so it is 15 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,300 vehicles a day, roughly 10% of them trucks, projected to reach 2,172 by 2046. The structure is 114 ft (34.7 m) long and 39 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIl 23/US 52
CrossesCrooked Leg Creek
Location0.27M E of IL23/US52
RouteU.S. Route 52
CountyLaSalle County
StateIllinois
Coordinates41.47057, -88.83345
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: 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 rating98.2 US tons
Inventory rating59 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length114 ft (34.7 m)
Longest span40 ft (12.3 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2023)
Projected traffic2,172 by 2046
Trucks10%
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 23/US 52 over Crooked Leg Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is Il 23/US 52 over Crooked Leg Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2021.

How much traffic does Il 23/US 52 over Crooked Leg Creek carry?

About 2,300 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Il 23/US 52 over Crooked Leg Creek?

The structure is 114 ft (34.7 m) long with a longest span of 40 ft (12.3 m) and a deck 39 ft wide.

Who owns Il 23/US 52 over Crooked Leg Creek?

It is owned by the State Highway Agency.