US Bridges

N3480 over Camp Creek

Fair

Pawnee County, Oklahoma · 1E 4.7N of SH18/CIM Tpk · Structure no. 210570000000000

Built
1985
40 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
110 ft
3 main spans
Daily traffic
200
2022 count
Owner
County
County Highway Agency

About this bridge

N3480 over Camp Creek is a prestressed concrete tee beam carrying N3480 over Camp Creek in Pawnee County, Oklahoma. It was built in 1985, so it is 40 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 200 vehicles a day, roughly 10% of them trucks, projected to reach 320 by 2042. The structure is 110 ft (33.5 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesN3480
CrossesCamp Creek
Location1E 4.7N of SH18/CIM Tpk
RouteCounty Highway N3480
CountyPawnee County
StateOklahoma
Coordinates36.29154, -96.80018
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.6 US tons
Inventory rating36.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2022)
Projected traffic320 by 2042
Trucks10%
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$534,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3480 over Camp Creek built?

It was built in 1985, making it 40 years old in 2025.

What condition is N3480 over Camp 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 July 2023.

How much traffic does N3480 over Camp Creek carry?

About 200 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N3480 over Camp Creek?

The structure is 110 ft (33.5 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns N3480 over Camp Creek?

It is owned by the County Highway Agency.