US Bridges

Ill 251 over Steward Creek

Good

Lee County, Illinois · 2.5 Mi. Nw. Steward · Structure no. 052007000000000

Built
2000
25 years old
Condition
Good
inspected May 2022
Type
Slab
Concrete Continuous
Length
90 ft
3 main spans
Daily traffic
1,600
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 251 over Steward Creek is a concrete continuous slab carrying Ill 251 over Steward Creek in Lee County, Illinois. It was built in 2000, so it is 25 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 1,600 vehicles a day, roughly 15% of them trucks, projected to reach 1,717 by 2046. The structure is 90 ft (27.5 m) long and 35 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesIll 251
CrossesSteward Creek
Location2.5 Mi. Nw. Steward
RouteState Highway 251
Coordinates41.87195, -89.0731
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum 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 rating80 US tons
Inventory rating47.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length90 ft (27.5 m)
Longest span33 ft (10.2 m)
Deck width35 ft (10.6 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2023)
Projected traffic1,717 by 2046
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Ill 251 over Steward Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Ill 251 over Steward 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 May 2022.

How much traffic does Ill 251 over Steward Creek carry?

About 1,600 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Ill 251 over Steward Creek?

The structure is 90 ft (27.5 m) long with a longest span of 33 ft (10.2 m) and a deck 35 ft wide.

Who owns Ill 251 over Steward Creek?

It is owned by the State Highway Agency.