US Bridges

S.H. 59 over Canadian Sandy Creek

Fair

McClain County, Oklahoma · 4.7 Mi.W.Of Byars · Structure no. 033000000000000

Built
1931
94 years old
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
28 ft
3 main spans
Daily traffic
1,200
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 59 over Canadian Sandy Creek is a concrete culvert carrying S.H. 59 over Canadian Sandy Creek in McClain County, Oklahoma. It was built in 1931, so it is 94 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,200 vehicles a day, roughly 15% of them trucks, projected to reach 1,920 by 2042. The structure is 28 ft (8.5 m) long and 24 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

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CarriesS.H. 59
CrossesCanadian Sandy Creek
Location4.7 Mi.W.Of Byars
RouteState Highway 59
CountyMcClain County
StateOklahoma
Coordinates34.88427, -97.13046
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.2 US tons
Inventory rating38.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length28 ft (8.5 m)
Longest span8 ft (2.4 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2022)
Projected traffic1,920 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$644,000
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 59 over Canadian Sandy Creek built?

It was built in 1931, making it 94 years old in 2025.

What condition is S.H. 59 over Canadian Sandy Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does S.H. 59 over Canadian Sandy Creek carry?

About 1,200 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 59 over Canadian Sandy Creek?

The structure is 28 ft (8.5 m) long with a longest span of 8 ft (2.4 m) and a deck 24 ft wide.

Who owns S.H. 59 over Canadian Sandy Creek?

It is owned by the State Highway Agency.