US Bridges

N4592 over Hickory Creek

FairPosted for load

Delaware County, Oklahoma · 1.5N of Sailboat Br. · Structure no. 069670000000000

Built
1939
86 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete
Length
34 ft
3 main spans
Daily traffic
420
2022 count
Owner
County
County Highway Agency

About this bridge

N4592 over Hickory Creek is a concrete slab carrying N4592 over Hickory Creek in Delaware County, Oklahoma. It was built in 1939, so it is 86 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. Its operating status is: posted for load restriction.

It carries about 420 vehicles a day, roughly 10% of them trucks, projected to reach 672 by 2042. The structure is 34 ft (10.4 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesN4592
CrossesHickory Creek
Location1.5N of Sailboat Br.
RouteCounty Highway N4595
CountyDelaware County
StateOklahoma
Coordinates36.66372, -94.81691
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, 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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating34.5 US tons
Inventory rating20.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length34 ft (10.4 m)
Longest span10 ft (3 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic420 (2022)
Projected traffic672 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$285,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N4592 over Hickory Creek built?

It was built in 1939, making it 86 years old in 2025.

What condition is N4592 over Hickory 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 February 2023.

How much traffic does N4592 over Hickory Creek carry?

About 420 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N4592 over Hickory Creek?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m) and a deck 26 ft wide.

Who owns N4592 over Hickory Creek?

It is owned by the County Highway Agency.