US Bridges

Il 101 over Lamoine R Overflow

Fair

Schuyler County, Illinois · 1.5M E Il 99 · Structure no. 085201300000000

Built
1984
41 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
300
2023 count
Owner
State
State Highway Agency

About this bridge

Il 101 over Lamoine R Overflow is a concrete culvert carrying Il 101 over Lamoine R Overflow in Schuyler County, Illinois. It was built in 1984, so it is 41 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 5 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 300 vehicles a day, roughly 11% of them trucks, projected to reach 429 by 2046. The structure is 33 ft (10.2 m) long. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesIl 101
CrossesLamoine R Overflow
Location1.5M E Il 99
RouteState Highway 101
CountySchuyler County
StateIllinois
Coordinates40.23412, -90.75249
Functional classRural Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating36.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length33 ft (10.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2023)
Projected traffic429 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Il 101 over Lamoine R Overflow built?

It was built in 1984, making it 41 years old in 2025.

What condition is Il 101 over Lamoine R Overflow 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 February 2024.

How much traffic does Il 101 over Lamoine R Overflow carry?

About 300 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Il 101 over Lamoine R Overflow?

The structure is 33 ft (10.2 m) long with a longest span of 10 ft (3 m).

Who owns Il 101 over Lamoine R Overflow?

It is owned by the State Highway Agency.