US Bridges

Old Highway 16 over Creek

Good

Slope County, North Dakota · 11.5 N 3 W of Marmarth · Structure no. 000000044103120

Built
2010
15 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
100
2018 count
Owner
County
County Highway Agency

About this bridge

Old Highway 16 over Creek is a concrete culvert carrying Old Highway 16 over Creek in Slope County, North Dakota. It was built in 2010, so it is 15 years old, younger than the North Dakota average of 48.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 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 100 by 2038. The structure is 20 ft (6.2 m) long. If it were closed, the detour would be 75.2 mi (121 km).

CarriesOld Highway 16
CrossesCreek
Location11.5 N 3 W of Marmarth
RouteCounty Highway 0
Coordinates46.46683, -103.99486
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating68.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length20 ft (6.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2018)
Projected traffic100 by 2038
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed75.2 mi (121 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 Old Highway 16 over Creek built?

It was built in 2010, making it 15 years old in 2025.

What condition is Old Highway 16 over 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 October 2024.

How much traffic does Old Highway 16 over Creek carry?

About 100 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is Old Highway 16 over Creek?

The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3 m).

Who owns Old Highway 16 over Creek?

It is owned by the County Highway Agency.