US Bridges

6704C over Sand Creek

Good

Seminole County, Oklahoma · 1 S & .3 W of Schoolton · Structure no. 235870000000000

Built
1994
31 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
103 ft
1 main span
Daily traffic
260
2022 count
Owner
County
County Highway Agency

About this bridge

6704C over Sand Creek is a prestressed concrete stringer/multi-beam or girder carrying 6704C over Sand Creek in Seminole County, Oklahoma. It was built in 1994, so it is 31 years old, younger 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 260 vehicles a day, roughly 15% of them trucks, projected to reach 416 by 2042. The structure is 103 ft (31.4 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries6704C
CrossesSand Creek
Location1 S & .3 W of Schoolton
RouteCounty Highway 6704C
Coordinates35.37721, -96.46474
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
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 inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating47 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length103 ft (31.4 m)
Longest span100 ft (30.5 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2022)
Projected traffic416 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$508,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 6704C over Sand Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is 6704C over Sand Creek 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 August 2023.

How much traffic does 6704C over Sand Creek carry?

About 260 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 6704C over Sand Creek?

The structure is 103 ft (31.4 m) long with a longest span of 100 ft (30.5 m) and a deck 29 ft wide.

Who owns 6704C over Sand Creek?

It is owned by the County Highway Agency.