US Bridges

Ch 1 Lost Nation R over Chamberlain Creek

Fair

Lee County, Illinois · 1.7 MI S of Ogle CO · Structure no. 052369100000000

Built
1963
62 years old
Condition
Fair
inspected February 2024
Type
Slab
Concrete
Length
88 ft
3 main spans
Daily traffic
1,900
2022 count
Owner
County
County Highway Agency

About this bridge

Ch 1 Lost Nation R over Chamberlain Creek is a concrete slab carrying Ch 1 Lost Nation R over Chamberlain Creek in Lee County, Illinois. It was built in 1963, so it is 62 years old, older 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 1,900 vehicles a day, roughly 5% of them trucks, projected to reach 2,525 by 2046. The structure is 88 ft (26.8 m) long and 31 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesCh 1 Lost Nation R
CrossesChamberlain Creek
Location1.7 MI S of Ogle CO
RouteCounty Highway 0
CountyLee County
StateIllinois
Coordinates41.87647, -89.40039
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating49.3 US tons
Inventory rating29.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length88 ft (26.8 m)
Longest span32 ft (9.8 m)
Deck width31 ft (9.4 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2022)
Projected traffic2,525 by 2046
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$432,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Ch 1 Lost Nation R over Chamberlain Creek built?

It was built in 1963, making it 62 years old in 2025.

What condition is Ch 1 Lost Nation R over Chamberlain 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 February 2024.

How much traffic does Ch 1 Lost Nation R over Chamberlain Creek carry?

About 1,900 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Ch 1 Lost Nation R over Chamberlain Creek?

The structure is 88 ft (26.8 m) long with a longest span of 32 ft (9.8 m) and a deck 31 ft wide.

Who owns Ch 1 Lost Nation R over Chamberlain Creek?

It is owned by the County Highway Agency.