US Bridges

Il 251 over Stream

Good

Lee County, Illinois · .2MI. N. of Mendota · Structure no. 050203800000000

Built
2003
22 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
1,600
2023 count
Owner
State
State Highway Agency

About this bridge

Il 251 over Stream is a concrete culvert carrying Il 251 over Stream in Lee County, Illinois. It was built in 2003, so it is 22 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 21% of them trucks, projected to reach 1,717 by 2046. The structure is 25 ft (7.5 m) long.

Location

Open in Google Maps
CarriesIl 251
CrossesStream
Location.2MI. N. of Mendota
RouteState Highway 251
CountyLee County
StateIllinois
Coordinates41.56507, -89.12803
Functional classUrban 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating37.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2023)
Projected traffic1,717 by 2046
Trucks21%
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 Il 251 over Stream built?

It was built in 2003, making it 22 years old in 2025.

What condition is Il 251 over Stream 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 December 2024.

How much traffic does Il 251 over Stream carry?

About 1,600 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is Il 251 over Stream?

The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.7 m).

Who owns Il 251 over Stream?

It is owned by the State Highway Agency.