US Bridges

N3730 Little Rock over Rock Creek Trib.

Fair

Atoka County, Oklahoma · 3.7W 2.4S of Boggy Depot · Structure no. 324220000000000

Built
2019
6 years old
Condition
Fair
inspected January 2024
Type
Culvert
Other
Length
20 ft
3 main spans
Daily traffic
24
2022 count
Owner
County
County Highway Agency

About this bridge

N3730 Little Rock over Rock Creek Trib. is a other culvert carrying N3730 Little Rock over Rock Creek Trib. in Atoka County, Oklahoma. It was built in 2019, so it is 6 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 5 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 24 vehicles a day, roughly 10% of them trucks, projected to reach 30 by 2042. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesN3730 Little Rock
CrossesRock Creek Trib.
Location3.7W 2.4S of Boggy Depot
RouteCounty Highway N3730
CountyAtoka County
StateOklahoma
Coordinates34.26206, -96.37276
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: 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 rating21.1 US tons

Structure

Structure typeCulvert
MaterialOther
DeckNot applicable
Main spans3
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span5 ft (1.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (2022)
Projected traffic30 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3730 Little Rock over Rock Creek Trib. built?

It was built in 2019, making it 6 years old in 2025.

What condition is N3730 Little Rock over Rock Creek Trib. 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 January 2024.

How much traffic does N3730 Little Rock over Rock Creek Trib. carry?

About 24 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N3730 Little Rock over Rock Creek Trib.?

The structure is 20 ft (6.1 m) long with a longest span of 5 ft (1.5 m).

Who owns N3730 Little Rock over Rock Creek Trib.?

It is owned by the County Highway Agency.