US Bridges

N3780 over Creek

Fair

Hughes County, Oklahoma · 1.9 N & 2 W of Horntown · Structure no. 303700000000000

Built
2011
14 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
28 ft
1 main span
Daily traffic
175
2022 count
Owner
County
County Highway Agency

About this bridge

N3780 over Creek is a steel stringer/multi-beam or girder carrying N3780 over Creek in Hughes County, Oklahoma. It was built in 2011, so it is 14 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 6 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 175 vehicles a day, roughly 10% of them trucks, projected to reach 280 by 2042. The structure is 28 ft (8.4 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesN3780
CrossesCreek
Location1.9 N & 2 W of Horntown
RouteCounty Highway N3780
CountyHughes County
StateOklahoma
Coordinates35.11472, -96.28306
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating39 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length28 ft (8.4 m)
Longest span26 ft (7.9 m)
Deck width27 ft (8.2 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2022)
Projected traffic280 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N3780 over Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is N3780 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 November 2023.

How much traffic does N3780 over Creek carry?

About 175 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N3780 over Creek?

The structure is 28 ft (8.4 m) long with a longest span of 26 ft (7.9 m) and a deck 27 ft wide.

Who owns N3780 over Creek?

It is owned by the County Highway Agency.