US Bridges

S.H. 7 Duncan Byps over Beech Ave. under

Fair

Stephens County, Oklahoma · 1.7W of US 81 Beech Ave · Structure no. 278060000000000

Built
2006
19 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
176 ft
3 main spans
Daily traffic
5,300
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 7 Duncan Byps over Beech Ave. under is a prestressed concrete stringer/multi-beam or girder carrying S.H. 7 Duncan Byps over Beech Ave. under in Stephens County, Oklahoma. It was built in 2006, so it is 19 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 5,300 vehicles a day, roughly 7% of them trucks, projected to reach 8,480 by 2042. The structure is 176 ft (53.6 m) long and 45 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesS.H. 7 Duncan Byps
CrossesBeech Ave. under
Location1.7W of US 81 Beech Ave
RouteState Highway 7
CountyStephens County
StateOklahoma
Coordinates34.50686, -97.99555
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.7 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length176 ft (53.6 m)
Longest span72 ft (21.9 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,300 (2022)
Projected traffic8,480 by 2042
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$3.2 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was S.H. 7 Duncan Byps over Beech Ave. under built?

It was built in 2006, making it 19 years old in 2025.

What condition is S.H. 7 Duncan Byps over Beech Ave. under 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 May 2024.

How much traffic does S.H. 7 Duncan Byps over Beech Ave. under carry?

About 5,300 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is S.H. 7 Duncan Byps over Beech Ave. under?

The structure is 176 ft (53.6 m) long with a longest span of 72 ft (21.9 m) and a deck 45 ft wide.

Who owns S.H. 7 Duncan Byps over Beech Ave. under?

It is owned by the State Highway Agency.