US Bridges

N4076 (9 St) over Drainage Canal

Fair

Pittsburg County, Oklahoma · 200 Ft S of Seminole Ave. · Structure no. 188860000000000

Built
1975
50 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
35 ft
2 main spans
Daily traffic
150
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

N4076 (9 St) over Drainage Canal is a concrete culvert carrying N4076 (9 St) over Drainage Canal in Pittsburg County, Oklahoma. It was built in 1975, so it is 50 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 150 vehicles a day, roughly 5% of them trucks, projected to reach 240 by 2042. The structure is 35 ft (10.7 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesN4076 (9 St)
CrossesDrainage Canal
Location200 Ft S of Seminole Ave.
RouteCity Street N4076
CountyPittsburg County
StateOklahoma
Coordinates34.92153, -95.76082
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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.7 US tons
Inventory rating29.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length35 ft (10.7 m)
Longest span16 ft (4.9 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic240 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N4076 (9 St) over Drainage Canal built?

It was built in 1975, making it 50 years old in 2025.

What condition is N4076 (9 St) over Drainage Canal 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 August 2023.

How much traffic does N4076 (9 St) over Drainage Canal carry?

About 150 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is N4076 (9 St) over Drainage Canal?

The structure is 35 ft (10.7 m) long with a longest span of 16 ft (4.9 m) and a deck 29 ft wide.

Who owns N4076 (9 St) over Drainage Canal?

It is owned by the City or Municipal Highway Agency.