US Bridges

N3915 over Salt Creek Trib.

GoodPosted for load

Okmulgee County, Oklahoma · 3.4S 4.5W JCT SH56&75 · Structure no. 295010000000000

Built
2015
10 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
33 ft
1 main span
Daily traffic
500
2022 count
Owner
County
County Highway Agency

About this bridge

N3915 over Salt Creek Trib. is a concrete culvert carrying N3915 over Salt Creek Trib. in Okmulgee County, Oklahoma. It was built in 2015, so it is 10 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. Its operating status is: posted for load restriction.

It carries about 500 vehicles a day, roughly 15% of them trucks, projected to reach 650 by 2042. The structure is 33 ft (10.2 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesN3915
CrossesSalt Creek Trib.
Location3.4S 4.5W JCT SH56&75
RouteCounty Highway N3915
Coordinates35.57528, -96.04194
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.6 US tons
Inventory rating24.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length33 ft (10.2 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2022)
Projected traffic650 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$225,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was N3915 over Salt Creek Trib. built?

It was built in 2015, making it 10 years old in 2025.

What condition is N3915 over Salt Creek Trib. 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 September 2023.

How much traffic does N3915 over Salt Creek Trib. carry?

About 500 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is N3915 over Salt Creek Trib.?

The structure is 33 ft (10.2 m) long with a longest span of 13 ft (4 m).

Who owns N3915 over Salt Creek Trib.?

It is owned by the County Highway Agency.