US Bridges

4936C over Pryor Creek

PoorPosted for load

Mayes County, Oklahoma · 5 MI W & 1.1 MI N. Adair · Structure no. 161510000000000

Built
1964
61 years old
Condition
Poor
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
240 ft
4 main spans
Daily traffic
120
2022 count
Owner
County
County Highway Agency

About this bridge

4936C over Pryor Creek is a steel stringer/multi-beam or girder carrying 4936C over Pryor Creek in Mayes County, Oklahoma. It was built in 1964, so it is 61 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. Its operating status is: posted for load restriction.

It carries about 120 vehicles a day, roughly 15% of them trucks, projected to reach 192 by 2042. The structure is 240 ft (73 m) long and 27 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Carries4936C
CrossesPryor Creek
Location5 MI W & 1.1 MI N. Adair
RouteCounty Highway 4936C
Coordinates36.45584, -95.36392
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating37.6 US tons
Inventory rating22.6 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length240 ft (73 m)
Longest span56 ft (17.2 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2022)
Projected traffic192 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$792,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 4936C over Pryor Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is 4936C over Pryor 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 April 2023.

How much traffic does 4936C over Pryor Creek carry?

About 120 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 4936C over Pryor Creek?

The structure is 240 ft (73 m) long with a longest span of 56 ft (17.2 m) and a deck 27 ft wide.

Who owns 4936C over Pryor Creek?

It is owned by the County Highway Agency.