US Bridges

N3047 (land Ave) over Twin Creek

Fair

Oklahoma County, Oklahoma · .1S of SW 50th · Structure no. 163110000000000

Built
1965
60 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
31 ft
2 main spans
Daily traffic
300
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

N3047 (land Ave) over Twin Creek is a concrete culvert carrying N3047 (land Ave) over Twin Creek in Oklahoma County, Oklahoma. It was built in 1965, so it is 60 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 300 vehicles a day, roughly 5% of them trucks, projected to reach 480 by 2042. The structure is 31 ft (9.4 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesN3047 (land Ave)
CrossesTwin Creek
Location.1S of SW 50th
RouteCity Street N3047
CountyOklahoma County
StateOklahoma
Coordinates35.41432, -97.57104
Functional classUrban 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 protection9 ExcellentNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
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 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 rating36 US tons
Inventory rating21.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length31 ft (9.4 m)
Longest span15 ft (4.6 m)
Deck width50 ft (15.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2022)
Projected traffic480 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3047 (land Ave) over Twin Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is N3047 (land Ave) over Twin 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 September 2023.

How much traffic does N3047 (land Ave) over Twin Creek carry?

About 300 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is N3047 (land Ave) over Twin Creek?

The structure is 31 ft (9.4 m) long with a longest span of 15 ft (4.6 m) and a deck 50 ft wide.

Who owns N3047 (land Ave) over Twin Creek?

It is owned by the City or Municipal Highway Agency.