US Bridges

N3370 over Salt Creek

Good

Pottawatomie County, Oklahoma · 3 S & 1 W of Anderson · Structure no. 243800000000000

Built
2001
24 years old
Condition
Good
inspected January 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
199 ft
2 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

N3370 over Salt Creek is a prestressed concrete stringer/multi-beam or girder carrying N3370 over Salt Creek in Pottawatomie County, Oklahoma. It was built in 2001, so it is 24 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 199 ft (60.8 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN3370
CrossesSalt Creek
Location3 S & 1 W of Anderson
RouteCounty Highway N3370
Coordinates35.04418, -97.00202
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating47 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length199 ft (60.8 m)
Longest span100 ft (30.5 m)
Deck width27 ft (8.3 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$715,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3370 over Salt Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is N3370 over Salt 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 January 2023.

How much traffic does N3370 over Salt Creek carry?

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

How long is N3370 over Salt Creek?

The structure is 199 ft (60.8 m) long with a longest span of 100 ft (30.5 m) and a deck 27 ft wide.

Who owns N3370 over Salt Creek?

It is owned by the County Highway Agency.