US Bridges

S.H. 74 over Unnamed Creek

Good

Garvin County, Oklahoma · 6.33 N of Jct. S.H. 29 · Structure no. 311710000000000

Built
2020
5 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
1,550
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 74 over Unnamed Creek is a concrete culvert carrying S.H. 74 over Unnamed Creek in Garvin County, Oklahoma. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,550 vehicles a day, roughly 21% of them trucks, projected to reach 2,200 by 2042. The structure is 29 ft (8.8 m) long.

Location

Open in Google Maps
CarriesS.H. 74
CrossesUnnamed Creek
Location6.33 N of Jct. S.H. 29
RouteState Highway 74
CountyGarvin County
StateOklahoma
Coordinates34.71271, -97.40532
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo 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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic1,550 (2022)
Projected traffic2,200 by 2042
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

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

It was built in 2020, making it 5 years old in 2025.

What condition is S.H. 74 over Unnamed 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. 74 over Unnamed Creek carry?

About 1,550 vehicles per day (2022 count), of which roughly 21% are trucks.

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

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m).

Who owns S.H. 74 over Unnamed Creek?

It is owned by the State Highway Agency.