US Bridges

S.H. 11 over Bird Creek

Fair

Osage County, Oklahoma · 11.6 Mi.E. Jct. SH99 · Structure no. 257750000000000

Built
2000
25 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
378 ft
5 main spans
Daily traffic
2,800
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 11 over Bird Creek is a prestressed concrete stringer/multi-beam or girder carrying S.H. 11 over Bird Creek in Osage County, Oklahoma. It was built in 2000, so it is 25 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 2,800 vehicles a day, roughly 16% of them trucks, projected to reach 4,480 by 2042. The structure is 378 ft (115.2 m) long and 42 ft wide. If it were closed, the detour would be 34.2 mi (55 km).

Location

Open in Google Maps
CarriesS.H. 11
CrossesBird Creek
Location11.6 Mi.E. Jct. SH99
RouteState Highway 11
CountyOsage County
StateOklahoma
Coordinates36.55628, -96.15678
Functional classRural Minor 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79.4 US tons
Inventory rating37.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length378 ft (115.2 m)
Longest span92 ft (28 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2022)
Projected traffic4,480 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed34.2 mi (55 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.7 million
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 11 over Bird Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is S.H. 11 over Bird 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 S.H. 11 over Bird Creek carry?

About 2,800 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is S.H. 11 over Bird Creek?

The structure is 378 ft (115.2 m) long with a longest span of 92 ft (28 m) and a deck 42 ft wide.

Who owns S.H. 11 over Bird Creek?

It is owned by the State Highway Agency.