US Bridges

CH-11 (edwards Co) over Bonpas Creek

Good

Wabash County, Illinois · 0.5 MI W Cowling · Structure no. 093308300000000

Built
1981
44 years old
Condition
Good
inspected February 2025
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
156 ft
3 main spans
Daily traffic
—
2022 count
Owner
County
County Highway Agency

About this bridge

CH-11 (edwards Co) over Bonpas Creek is a prestressed concrete box beam or girders - multiple carrying CH-11 (edwards Co) over Bonpas Creek in Wabash County, Illinois. It was built in 1981, so it is 44 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

No traffic count is recorded. The structure is 156 ft (47.5 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCH-11 (edwards Co)
CrossesBonpas Creek
Location0.5 MI W Cowling
RouteCounty Highway 0
Coordinates38.31278, -87.94844
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length156 ft (47.5 m)
Longest span52 ft (15.8 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic177 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 (edwards Co) over Bonpas Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is CH-11 (edwards Co) over Bonpas Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2025.

How much traffic does CH-11 (edwards Co) over Bonpas Creek carry?

No traffic count is recorded for this structure.

How long is CH-11 (edwards Co) over Bonpas Creek?

The structure is 156 ft (47.5 m) long with a longest span of 52 ft (15.8 m) and a deck 24 ft wide.

Who owns CH-11 (edwards Co) over Bonpas Creek?

It is owned by the County Highway Agency.