US Bridges

Ch 11 over Br of Plum River

Fair

Jo Daviess County, Illinois · 1 MI E Pleasant Vall · Structure no. 043500000000000

Built
1950
75 years old
Condition
Fair
inspected September 2024
Type
Culvert
Steel
Length
31 ft
2 main spans
Daily traffic
50
2021 count
Owner
County
County Highway Agency

About this bridge

Ch 11 over Br of Plum River is a steel culvert carrying Ch 11 over Br of Plum River in Jo Daviess County, Illinois. It was built in 1950, so it is 75 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 50 vehicles a day, roughly 12% of them trucks, projected to reach 51 by 2046. The structure is 31 ft (9.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCh 11
CrossesBr of Plum River
Location1 MI E Pleasant Vall
RouteCounty Highway 0
CountyJo Daviess County
StateIllinois
Coordinates42.21866, -90.00867
Functional classRural Minor 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 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 inspectionSeptember 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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.7 US tons
Inventory rating19.3 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length31 ft (9.3 m)
Longest span13 ft (4.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2021)
Projected traffic51 by 2046
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ch 11 over Br of Plum River built?

It was built in 1950, making it 75 years old in 2025.

What condition is Ch 11 over Br of Plum River 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 September 2024.

How much traffic does Ch 11 over Br of Plum River carry?

About 50 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is Ch 11 over Br of Plum River?

The structure is 31 ft (9.3 m) long with a longest span of 13 ft (4.1 m).

Who owns Ch 11 over Br of Plum River?

It is owned by the County Highway Agency.