US Bridges

Ill 251 over Adrians Creek

Fair

Lee County, Illinois · 1.9 MI S JCT US 30 · Structure no. 052201200000000

Built
1987
38 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
800
2023 count
Owner
State
State Highway Agency

About this bridge

Ill 251 over Adrians Creek is a concrete culvert carrying Ill 251 over Adrians Creek in Lee County, Illinois. It was built in 1987, so it is 38 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 6 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 800 vehicles a day, roughly 12% of them trucks, projected to reach 909 by 2046. The structure is 24 ft (7.3 m) long and 61 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesIll 251
CrossesAdrians Creek
Location1.9 MI S JCT US 30
RouteState Highway 251
CountyLee County
StateIllinois
Coordinates41.73233, -89.08372
Functional classRural Major Collector

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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating61.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length24 ft (7.3 m)
Longest span12 ft (3.6 m)
Deck width61 ft (18.6 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2023)
Projected traffic909 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 Adrians Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Ill 251 over Adrians 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 2023.

How much traffic does Ill 251 over Adrians Creek carry?

About 800 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Ill 251 over Adrians Creek?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.6 m) and a deck 61 ft wide.

Who owns Ill 251 over Adrians Creek?

It is owned by the State Highway Agency.