US Bridges

S.H. 74 over Salt Creek

Fair

Garvin County, Oklahoma · 2.5 MI N Carter C/L · Structure no. 196290000000000

Built
1979
46 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
303 ft
3 main spans
Daily traffic
800
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 74 over Salt Creek is a prestressed concrete stringer/multi-beam or girder carrying S.H. 74 over Salt Creek in Garvin County, Oklahoma. It was built in 1979, so it is 46 years old, younger 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 800 vehicles a day, roughly 15% of them trucks, projected to reach 1,280 by 2042. The structure is 303 ft (92.4 m) long and 34 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesS.H. 74
CrossesSalt Creek
Location2.5 MI N Carter C/L
RouteState Highway 74
CountyGarvin County
StateOklahoma
Coordinates34.54241, -97.40492
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating82 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length303 ft (92.4 m)
Longest span100 ft (30.5 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic800 (2022)
Projected traffic1,280 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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$2.5 million
NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 1979, making it 46 years old in 2025.

What condition is S.H. 74 over Salt 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 March 2024.

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

About 800 vehicles per day (2022 count), of which roughly 15% are trucks.

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

The structure is 303 ft (92.4 m) long with a longest span of 100 ft (30.5 m) and a deck 34 ft wide.

Who owns S.H. 74 over Salt Creek?

It is owned by the State Highway Agency.