US Bridges

E0780 over North Canadian River

PoorPosted for load

Blaine County, Oklahoma · 2.5 N 3.5 W Watonga · Structure no. 124250000000000

Built
1950
75 years old
Condition
Poor
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
126 ft
5 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

E0780 over North Canadian River is a steel stringer/multi-beam or girder carrying E0780 over North Canadian River in Blaine County, Oklahoma. It was built in 1950, so it is 75 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 126 ft (38.4 m) long and 23 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesE0780
CrossesNorth Canadian River
Location2.5 N 3.5 W Watonga
RouteCounty Highway E0780
Coordinates35.88467, -98.47467
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37 US tons
Inventory rating22 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadUnknown
Structure length126 ft (38.4 m)
Longest span36 ft (11 m)
Deck width23 ft (6.9 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$575,000
NavigationNo navigation control on waterway

Frequently asked questions

When was E0780 over North Canadian River built?

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

What condition is E0780 over North 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 June 2023.

How much traffic does E0780 over North Canadian River carry?

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

How long is E0780 over North Canadian River?

The structure is 126 ft (38.4 m) long with a longest span of 36 ft (11 m) and a deck 23 ft wide.

Who owns E0780 over North Canadian River?

It is owned by the County Highway Agency.