US Bridges

N4000 over Fish Creek

PoorPosted for load

Washington County, Oklahoma · 3E 2.1S of US 60 · Structure no. 330910000000000

Built
2022
3 years old
Condition
Poor
inspected October 2024
Type
Culvert
Other
Length
22 ft
4 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

N4000 over Fish Creek is a other culvert carrying N4000 over Fish Creek in Washington County, Oklahoma. It was built in 2022, so it is 3 years old, younger 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 3 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 22 ft (6.6 m) long and 21 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesN4000
CrossesFish Creek
Location3E 2.1S of US 60
RouteCounty Highway N4000
CountyWashington County
StateOklahoma
Coordinates36.71048, -95.88122
Functional classRural Local

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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating11.8 US tons
Inventory rating9 US tons

Structure

Structure typeCulvert
MaterialOther
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length22 ft (6.6 m)
Longest span5 ft (1.5 m)
Deck width21 ft (6.4 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N4000 over Fish Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is N4000 over Fish 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 October 2024.

How much traffic does N4000 over Fish Creek carry?

About 100 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N4000 over Fish Creek?

The structure is 22 ft (6.6 m) long with a longest span of 5 ft (1.5 m) and a deck 21 ft wide.

Who owns N4000 over Fish Creek?

It is owned by the County Highway Agency.