US Bridges

S.H. 99 over BNSF R.R. under

Fair

Pawnee County, Oklahoma · 4.3 MI N Creek Co. · Structure no. 187440000000000

Built
1974
51 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
168 ft
3 main spans
Daily traffic
1,700
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 99 over BNSF R.R. under is a prestressed concrete stringer/multi-beam or girder carrying S.H. 99 over BNSF R.R. under in Pawnee County, Oklahoma. It was built in 1974, so it is 51 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 5 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 1,700 vehicles a day, roughly 16% of them trucks, projected to reach 2,720 by 2042. The structure is 168 ft (51.2 m) long and 50 ft wide. If it were closed, the detour would be 42.9 mi (69 km).

Location

Open in Google Maps
CarriesS.H. 99
CrossesBNSF R.R. under
Location4.3 MI N Creek Co.
RouteState Highway 99
CountyPawnee County
StateOklahoma
Coordinates36.22405, -96.57192
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating39.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length168 ft (51.2 m)
Longest span63 ft (19.2 m)
Deck width50 ft (15.1 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,700 (2022)
Projected traffic2,720 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed42.9 mi (69 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$1.9 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was S.H. 99 over BNSF R.R. under built?

It was built in 1974, making it 51 years old in 2025.

What condition is S.H. 99 over BNSF R.R. 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. 99 over BNSF R.R. under carry?

About 1,700 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is S.H. 99 over BNSF R.R. under?

The structure is 168 ft (51.2 m) long with a longest span of 63 ft (19.2 m) and a deck 50 ft wide.

Who owns S.H. 99 over BNSF R.R. under?

It is owned by the State Highway Agency.