US Bridges

S.H. 59 over Blacksmith Creek

Good

Pottawatomie County, Oklahoma · 2.6 MI E of JCT U.S. 177 · Structure no. 290030000000000

Built
2011
14 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
131 ft
1 main span
Daily traffic
760
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 59 over Blacksmith Creek is a prestressed concrete stringer/multi-beam or girder carrying S.H. 59 over Blacksmith Creek in Pottawatomie County, Oklahoma. It was built in 2011, so it is 14 years old, younger than the Oklahoma average of 47.8 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 760 vehicles a day, roughly 16% of them trucks, projected to reach 1,216 by 2042. The structure is 131 ft (39.8 m) long and 42 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

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CarriesS.H. 59
CrossesBlacksmith Creek
Location2.6 MI E of JCT U.S. 177
RouteState Highway 59
CountyPottawatomie County
StateOklahoma
Coordinates35.07255, -96.88775
Functional classRural Major 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.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.9 US tons
Inventory rating55.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length131 ft (39.8 m)
Longest span131 ft (39.8 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic760 (2022)
Projected traffic1,216 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$2.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 59 over Blacksmith Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is S.H. 59 over Blacksmith 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 March 2023.

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

About 760 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is S.H. 59 over Blacksmith Creek?

The structure is 131 ft (39.8 m) long with a longest span of 131 ft (39.8 m) and a deck 42 ft wide.

Who owns S.H. 59 over Blacksmith Creek?

It is owned by the State Highway Agency.