US Bridges

Ch 64 (320th St) over Canoe Creek

Good

Rock Island County, Illinois · 1.8 MI S Hillsdale · Structure no. 081310800000000

Built
1989
36 years old
Condition
Good
inspected November 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
175
2020 count
Owner
County
County Highway Agency

About this bridge

Ch 64 (320th St) over Canoe Creek is a prestressed concrete stringer/multi-beam or girder carrying Ch 64 (320th St) over Canoe Creek in Rock Island County, Illinois. It was built in 1989, so it is 36 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 175 vehicles a day, roughly 11% of them trucks, projected to reach 177 by 2046. The structure is 80 ft (24.3 m) long and 39 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesCh 64 (320th St)
CrossesCanoe Creek
Location1.8 MI S Hillsdale
RouteCounty Highway 0
CountyRock Island County
StateIllinois
Coordinates41.58879, -90.18744
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 protection7 GoodSome minor problems.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length80 ft (24.3 m)
Longest span75 ft (22.8 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2020)
Projected traffic177 by 2046
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 64 (320th St) over Canoe Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is Ch 64 (320th St) over Canoe 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 2022.

How much traffic does Ch 64 (320th St) over Canoe Creek carry?

About 175 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is Ch 64 (320th St) over Canoe Creek?

The structure is 80 ft (24.3 m) long with a longest span of 75 ft (22.8 m) and a deck 39 ft wide.

Who owns Ch 64 (320th St) over Canoe Creek?

It is owned by the County Highway Agency.