US Bridges

Ch 11 over Cox Creek

Good

Cass County, Illinois · 2.75 MI W Newmansvil · Structure no. 009050100000000

Built
2001
24 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
96 ft
1 main span
Daily traffic
100
2023 count
Owner
County
County Highway Agency

About this bridge

Ch 11 over Cox Creek is a prestressed concrete stringer/multi-beam or girder carrying Ch 11 over Cox Creek in Cass County, Illinois. It was built in 2001, so it is 24 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.

It carries about 100 vehicles a day, roughly 6% of them trucks, projected to reach 126 by 2046. The structure is 96 ft (29.4 m) long and 35 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCh 11
CrossesCox Creek
Location2.75 MI W Newmansvil
RouteCounty Highway 0
Coordinates39.9984, -90.05737
Functional classRural Minor Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length96 ft (29.4 m)
Longest span94 ft (28.6 m)
Deck width35 ft (10.7 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2023)
Projected traffic126 by 2046
Trucks6%
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 over Cox Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is Ch 11 over Cox 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 November 2024.

How much traffic does Ch 11 over Cox Creek carry?

About 100 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Ch 11 over Cox Creek?

The structure is 96 ft (29.4 m) long with a longest span of 94 ft (28.6 m) and a deck 35 ft wide.

Who owns Ch 11 over Cox Creek?

It is owned by the County Highway Agency.