US Bridges

Ill 251 over Bailey Creek

Good

LaSalle County, Illinois · 3.63 MI S of Ill 71 · Structure no. 050203400000000

Built
1999
26 years old
Condition
Good
inspected February 2021
Type
Culvert
Concrete
Length
30 ft
3 main spans
Daily traffic
1,700
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 251 over Bailey Creek is a concrete culvert carrying Ill 251 over Bailey Creek in LaSalle County, Illinois. It was built in 1999, so it is 26 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,700 vehicles a day, roughly 10% of them trucks, projected to reach 1,970 by 2046. The structure is 30 ft (9.2 m) long and 55 ft wide.

CarriesIll 251
CrossesBailey Creek
Location3.63 MI S of Ill 71
RouteState Highway 251
Coordinates41.21295, -89.06807
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionFebruary 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 rating68.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length30 ft (9.2 m)
Longest span9 ft (2.7 m)
Deck width55 ft (16.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2023)
Projected traffic1,970 by 2046
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Ill 251 over Bailey Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is Ill 251 over Bailey 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 February 2021.

How much traffic does Ill 251 over Bailey Creek carry?

About 1,700 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Ill 251 over Bailey Creek?

The structure is 30 ft (9.2 m) long with a longest span of 9 ft (2.7 m) and a deck 55 ft wide.

Who owns Ill 251 over Bailey Creek?

It is owned by the State Highway Agency.