US Bridges

S.H. 28 over Panther Creek

Poor

Nowata County, Oklahoma · 5.7 MI S JCT US 60 · Structure no. 150960000000000

Built
1960
65 years old
Condition
Poor
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
133 ft
3 main spans
Daily traffic
680
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 28 over Panther Creek is a steel stringer/multi-beam or girder carrying S.H. 28 over Panther Creek in Nowata County, Oklahoma. It was built in 1960, so it is 65 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 680 vehicles a day, roughly 15% of them trucks, projected to reach 1,088 by 2042. The structure is 133 ft (40.5 m) long and 32 ft wide. If it were closed, the detour would be 28 mi (45 km).

Location

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CarriesS.H. 28
CrossesPanther Creek
Location5.7 MI S JCT US 60
RouteState Highway 28
CountyNowata County
StateOklahoma
Coordinates36.61758, -95.48566
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length133 ft (40.5 m)
Longest span50 ft (15.2 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic680 (2022)
Projected traffic1,088 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 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$1.7 million
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 28 over Panther Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is S.H. 28 over Panther Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2024.

How much traffic does S.H. 28 over Panther Creek carry?

About 680 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 28 over Panther Creek?

The structure is 133 ft (40.5 m) long with a longest span of 50 ft (15.2 m) and a deck 32 ft wide.

Who owns S.H. 28 over Panther Creek?

It is owned by the State Highway Agency.