US Bridges

S.H. 15 over Red Rock Creek

Fair

Noble County, Oklahoma · 5.2 MI E of JCT US77 · Structure no. 128460000000000

Built
1952
73 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
326 ft
5 main spans
Daily traffic
400
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 15 over Red Rock Creek is a steel stringer/multi-beam or girder carrying S.H. 15 over Red Rock Creek in Noble County, Oklahoma. It was built in 1952, so it is 73 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 5 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 400 vehicles a day, roughly 15% of them trucks, projected to reach 640 by 2042. The structure is 326 ft (99.5 m) long and 31 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

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CarriesS.H. 15
CrossesRed Rock Creek
Location5.2 MI E of JCT US77
RouteState Highway 15
CountyNoble County
StateOklahoma
Coordinates36.4649, -97.1934
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.4 US tons
Inventory rating23.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length326 ft (99.5 m)
Longest span70 ft (21.3 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2022)
Projected traffic640 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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$2.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 15 over Red Rock Creek built?

It was built in 1952, making it 73 years old in 2025.

What condition is S.H. 15 over Red Rock 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 April 2024.

How much traffic does S.H. 15 over Red Rock Creek carry?

About 400 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 15 over Red Rock Creek?

The structure is 326 ft (99.5 m) long with a longest span of 70 ft (21.3 m) and a deck 31 ft wide.

Who owns S.H. 15 over Red Rock Creek?

It is owned by the State Highway Agency.