US Bridges

Gravel RD 36AT over Unnamed Creek

FairPosted for load

Pittsburg County, Oklahoma · Section 36AT · Structure no. DAPAMCMCA000537

Built
1954
71 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
90 ft
6 main spans
Daily traffic
100
2016 count
Owner
Federal
Army

About this bridge

Gravel RD 36AT over Unnamed Creek is a wood or timber stringer/multi-beam or girder carrying Gravel RD 36AT over Unnamed Creek in Pittsburg County, Oklahoma. It was built in 1954, so it is 71 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 100 by 2044. The structure is 90 ft (27.4 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesGravel RD 36AT
CrossesUnnamed Creek
LocationSection 36AT
Coordinates34.81893, -95.8923
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating32.5 US tons
Inventory rating25.4 US tons

Structure

MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length90 ft (27.4 m)
Longest span15 ft (4.6 m)
Deck width24 ft (7.2 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2016)
Projected traffic100 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerArmy
Maintained byArmy
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2,000 (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Gravel RD 36AT over Unnamed Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is Gravel RD 36AT over Unnamed 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 November 2023.

How much traffic does Gravel RD 36AT over Unnamed Creek carry?

About 100 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is Gravel RD 36AT over Unnamed Creek?

The structure is 90 ft (27.4 m) long with a longest span of 15 ft (4.6 m) and a deck 24 ft wide.

Who owns Gravel RD 36AT over Unnamed Creek?

It is owned by the Army.