US Bridges

6170C over Brushy Creek

Fair

Pittsburg County, Oklahoma · 2 N of Arch · Structure no. 210810000000000

Built
1985
40 years old
Condition
Fair
inspected August 2023
Type
Tee Beam
Prestressed Concrete
Length
151 ft
3 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

6170C over Brushy Creek is a prestressed concrete tee beam carrying 6170C over Brushy Creek in Pittsburg County, Oklahoma. It was built in 1985, so it is 40 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 100 vehicles a day, roughly 15% of them trucks, projected to reach 160 by 2042. The structure is 151 ft (46 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
Carries6170C
CrossesBrushy Creek
Location2 N of Arch
RouteCounty Highway 6170C
CountyPittsburg County
StateOklahoma
Coordinates34.80111, -95.65463
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length151 ft (46 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$675,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 6170C over Brushy Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is 6170C over Brushy 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 6170C over Brushy Creek carry?

About 100 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 6170C over Brushy Creek?

The structure is 151 ft (46 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns 6170C over Brushy Creek?

It is owned by the County Highway Agency.