US Bridges

CO HWY No 11 over Br East Plum River

Fair

Jo Daviess County, Illinois · 5 MI E Pleasant Vall · Structure no. 043320000000000

Built
1950
75 years old
Condition
Fair
inspected September 2024
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
100
2021 count
Owner
County
County Highway Agency

About this bridge

CO HWY No 11 over Br East Plum River is a concrete culvert carrying CO HWY No 11 over Br East 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 100 vehicles a day, roughly 39% of them trucks, projected to reach 101 by 2046. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCO HWY No 11
CrossesBr East Plum River
Location5 MI E Pleasant Vall
RouteCounty Highway 0
CountyJo Daviess County
StateIllinois
Coordinates42.22551, -89.92174
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 alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 15
Structure length40 ft (12.2 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 traffic100 (2021)
Projected traffic101 by 2046
Trucks39%
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 CO HWY No 11 over Br East Plum River built?

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

What condition is CO HWY No 11 over Br East 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 CO HWY No 11 over Br East Plum River carry?

About 100 vehicles per day (2021 count), of which roughly 39% are trucks.

How long is CO HWY No 11 over Br East Plum River?

The structure is 40 ft (12.2 m) long with a longest span of 12 ft (3.7 m).

Who owns CO HWY No 11 over Br East Plum River?

It is owned by the County Highway Agency.