US Bridges

N3825 over Island Bayou Creek Oflo

Good

Bryan County, Oklahoma · 3.3 N of Yuba · Structure no. 063540000000000

Built
1938
87 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
43 ft
4 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

N3825 over Island Bayou Creek Oflo is a concrete culvert carrying N3825 over Island Bayou Creek Oflo in Bryan County, Oklahoma. It was built in 1938, so it is 87 years old, older 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 43 ft (13.1 m) long and 38 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesN3825
CrossesIsland Bayou Creek Oflo
Location3.3 N of Yuba
RouteCounty Highway N3825
Coordinates33.86275, -96.20748
Functional classRural Local

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 protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionMay 2024
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 geometry9: Superior to present desirable criteria
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
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span10 ft (3 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic80 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3825 over Island Bayou Creek Oflo built?

It was built in 1938, making it 87 years old in 2025.

What condition is N3825 over Island Bayou Creek Oflo 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 May 2024.

How much traffic does N3825 over Island Bayou Creek Oflo carry?

About 50 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N3825 over Island Bayou Creek Oflo?

The structure is 43 ft (13.1 m) long with a longest span of 10 ft (3 m) and a deck 38 ft wide.

Who owns N3825 over Island Bayou Creek Oflo?

It is owned by the County Highway Agency.