US Bridges

U.S. 77 Sd over Ditch Drain

Fair

Garvin County, Oklahoma · 33 E of US 77 · Structure no. 015290000000000

Built
1925
100 years old, rebuilt 1973
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
250
2022 count
Owner
State
State Highway Agency

About this bridge

U.S. 77 Sd over Ditch Drain is a concrete culvert carrying U.S. 77 Sd over Ditch Drain in Garvin County, Oklahoma. It was built in 1925 and reconstructed in 1973, so it is 100 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 250 vehicles a day, roughly 15% of them trucks, projected to reach 400 by 2042. The structure is 33 ft (10.1 m) long and 24 ft wide.

Location

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CarriesU.S. 77 Sd
CrossesDitch Drain
Location33 E of US 77
CountyGarvin County
StateOklahoma
Coordinates34.69164, -97.21276
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.6 US tons
Inventory rating31.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2022)
Projected traffic400 by 2042
Trucks15%
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 statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$644,000
NavigationNo navigation control on waterway

Frequently asked questions

When was U.S. 77 Sd over Ditch Drain built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 1973.

What condition is U.S. 77 Sd over Ditch Drain 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 October 2024.

How much traffic does U.S. 77 Sd over Ditch Drain carry?

About 250 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is U.S. 77 Sd over Ditch Drain?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 24 ft wide.

Who owns U.S. 77 Sd over Ditch Drain?

It is owned by the State Highway Agency.