US Bridges

N3470 over Camp Creek

Good

Pawnee County, Oklahoma · 2.5N 2.W .2N Cim TPK/SH18 · Structure no. 244520000000000

Built
1998
27 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
125 ft
3 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

N3470 over Camp Creek is a prestressed concrete stringer/multi-beam or girder carrying N3470 over Camp Creek in Pawnee County, Oklahoma. It was built in 1998, so it is 27 years old, younger than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 125 ft (38.1 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesN3470
CrossesCamp Creek
Location2.5N 2.W .2N Cim TPK/SH18
RouteCounty Highway N3470
Coordinates36.26457, -96.81874
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57 US tons
Inventory rating34.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length125 ft (38.1 m)
Longest span50 ft (15.2 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.2 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 closed3.7 mi (6 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$572,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3470 over Camp Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is N3470 over Camp Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does N3470 over Camp Creek carry?

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

How long is N3470 over Camp Creek?

The structure is 125 ft (38.1 m) long with a longest span of 50 ft (15.2 m) and a deck 29 ft wide.

Who owns N3470 over Camp Creek?

It is owned by the County Highway Agency.