US Bridges

N3680 over Sincere Creek

Fair

Pontotoc County, Oklahoma · 2.3 N & 1.4 W of Jaydee · Structure no. 243550000000000

Built
1995
30 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
103 ft
1 main span
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

N3680 over Sincere Creek is a prestressed concrete stringer/multi-beam or girder carrying N3680 over Sincere Creek in Pontotoc County, Oklahoma. It was built in 1995, so it is 30 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 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 103 ft (31.4 m) long and 34 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesN3680
CrossesSincere Creek
Location2.3 N & 1.4 W of Jaydee
RouteCounty Highway N3680
CountyPontotoc County
StateOklahoma
Coordinates34.78451, -96.45919
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating47 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length103 ft (31.4 m)
Longest span100 ft (30.5 m)
Deck width34 ft (10.5 m)
Roadway width33 ft (10 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
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$516,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3680 over Sincere Creek built?

It was built in 1995, making it 30 years old in 2025.

What condition is N3680 over Sincere 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 2024.

How much traffic does N3680 over Sincere Creek carry?

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

How long is N3680 over Sincere Creek?

The structure is 103 ft (31.4 m) long with a longest span of 100 ft (30.5 m) and a deck 34 ft wide.

Who owns N3680 over Sincere Creek?

It is owned by the County Highway Agency.