US Bridges

E0660 over N. Canadian River

PoorPosted for load

Blaine County, Oklahoma · .2S of Canton · Structure no. 004600000000000

Built
1915
110 years old
Condition
Poor
inspected March 2024
Type
Truss - Thru
Steel
Length
302 ft
3 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

E0660 over N. Canadian River is a steel truss - thru carrying E0660 over N. Canadian River in Blaine County, Oklahoma. It was built in 1915, so it is 110 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 302 ft (92 m) long and 16 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesE0660
CrossesN. Canadian River
Location.2S of Canton
RouteCounty Highway E0660
CountyBlaine County
StateOklahoma
Coordinates36.05694, -98.58389
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating21.1 US tons
Inventory rating6 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length302 ft (92 m)
Longest span100 ft (30.5 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.7 m)
Vertical clearance over deck12 ft (3.8 m)

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$456,000
NavigationNo navigation control on waterway

Frequently asked questions

When was E0660 over N. Canadian River built?

It was built in 1915, making it 110 years old in 2025.

What condition is E0660 over N. Canadian River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does E0660 over N. Canadian River carry?

About 100 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is E0660 over N. Canadian River?

The structure is 302 ft (92 m) long with a longest span of 100 ft (30.5 m) and a deck 16 ft wide.

Who owns E0660 over N. Canadian River?

It is owned by the County Highway Agency.