US Bridges

S.H. 74 over Rock Creek

Fair

Garvin County, Oklahoma · 7.8 MI N Carter C/L · Structure no. 184880000000000

Built
1973
52 years old, rebuilt 2012
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
137 ft
3 main spans
Daily traffic
730
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 74 over Rock Creek is a prestressed concrete stringer/multi-beam or girder carrying S.H. 74 over Rock Creek in Garvin County, Oklahoma. It was built in 1973 and reconstructed in 2012, so it is 52 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 730 vehicles a day, roughly 15% of them trucks, projected to reach 1,168 by 2042. The structure is 137 ft (41.8 m) long and 34 ft wide. If it were closed, the detour would be 29.2 mi (47 km).

Location

Open in Google Maps
CarriesS.H. 74
CrossesRock Creek
Location7.8 MI N Carter C/L
RouteState Highway 74
CountyGarvin County
StateOklahoma
Coordinates34.6157, -97.40042
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionFebruary 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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length137 ft (41.8 m)
Longest span45 ft (13.7 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic730 (2022)
Projected traffic1,168 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.2 mi (47 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$1.7 million
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 74 over Rock Creek built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2012.

What condition is S.H. 74 over 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 February 2023.

How much traffic does S.H. 74 over Rock Creek carry?

About 730 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 74 over Rock Creek?

The structure is 137 ft (41.8 m) long with a longest span of 45 ft (13.7 m) and a deck 34 ft wide.

Who owns S.H. 74 over Rock Creek?

It is owned by the State Highway Agency.