State Highway 58A over Canton Lake Spillway
PoorPosted for loadBlaine County, Oklahoma · 2 MI N. of Canton · Structure no. CEPSWTOKCANTONL
- Built
- 1948
- 77 years old, rebuilt 2017
- Condition
- Poor
- inspected March 2024
- Type
- Girder and Floorbeam System
- Concrete
- Length
- 786 ft
- 16 main spans
- Daily traffic
- 730
- 2024 count
- Owner
- Federal
- Corps of Engineers (Civil)
About this bridge
State Highway 58A over Canton Lake Spillway is a concrete girder and floorbeam system carrying State Highway 58A over Canton Lake Spillway in Blaine County, Oklahoma. It was built in 1948 and reconstructed in 2017, so it is 77 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 730 vehicles a day, roughly 10% of them trucks, projected to reach 803 by 2044. The structure is 786 ft (239.5 m) long and 30 ft wide. If it were closed, the detour would be 6.8 mi (11 km).
Location
Open in Google MapsCondition and inspection
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.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Highway 58A over Canton Lake Spillway built?
It was built in 1948, making it 77 years old in 2025. It was reconstructed in 2017.
What condition is State Highway 58A over Canton Lake Spillway 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 State Highway 58A over Canton Lake Spillway carry?
About 730 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is State Highway 58A over Canton Lake Spillway?
The structure is 786 ft (239.5 m) long with a longest span of 43 ft (13.1 m) and a deck 30 ft wide.
Who owns State Highway 58A over Canton Lake Spillway?
It is owned by the Corps of Engineers (Civil).