US Bridges

6704C over Gar Creek

FairPosted for load

Seminole County, Oklahoma · 2 N & 1.7 E of Sylvian · Structure no. 094700000000000

Built
1940
85 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
133 ft
3 main spans
Daily traffic
250
2022 count
Owner
County
County Highway Agency

About this bridge

6704C over Gar Creek is a steel stringer/multi-beam or girder carrying 6704C over Gar Creek in Seminole County, Oklahoma. It was built in 1940, so it is 85 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. Its operating status is: posted for load restriction.

It carries about 250 vehicles a day, roughly 15% of them trucks, projected to reach 400 by 2042. The structure is 133 ft (40.4 m) long and 27 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
Carries6704C
CrossesGar Creek
Location2 N & 1.7 E of Sylvian
RouteCounty Highway 6704C
CountySeminole County
StateOklahoma
Coordinates35.37678, -96.53571
Functional classRural Major Collector

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 statusPosted for load 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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating47 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length133 ft (40.4 m)
Longest span60 ft (18.3 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2022)
Projected traffic400 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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$591,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 6704C over Gar Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is 6704C over Gar 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 August 2023.

How much traffic does 6704C over Gar Creek carry?

About 250 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 6704C over Gar Creek?

The structure is 133 ft (40.4 m) long with a longest span of 60 ft (18.3 m) and a deck 27 ft wide.

Who owns 6704C over Gar Creek?

It is owned by the County Highway Agency.