US Bridges

N3460 over Creek

Fair

Johnston County, Oklahoma · 1.4 S & 1 W of Mill Creek · Structure no. 271950000000000

Built
2002
23 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

N3460 over Creek is a steel stringer/multi-beam or girder carrying N3460 over Creek in Johnston County, Oklahoma. It was built in 2002, so it is 23 years old, younger 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 51 ft (15.6 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesN3460
CrossesCreek
Location1.4 S & 1 W of Mill Creek
RouteCounty Highway N3460
CountyJohnston County
StateOklahoma
Coordinates34.38447, -96.84535
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
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating29 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length51 ft (15.6 m)
Longest span47 ft (14.3 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic80 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$365,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3460 over Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is N3460 over 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 May 2023.

How much traffic does N3460 over Creek carry?

About 50 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N3460 over Creek?

The structure is 51 ft (15.6 m) long with a longest span of 47 ft (14.3 m) and a deck 28 ft wide.

Who owns N3460 over Creek?

It is owned by the County Highway Agency.