US Bridges

78th Ave SW over Creek

Good

Stark County, North Dakota · 10 E 1 S of Richardton · Structure no. 000000045154100

Built
1935
90 years old, rebuilt 1973
Condition
Good
inspected July 2024
Type
Channel Beam
Concrete
Length
25 ft
1 main span
Daily traffic
20
2018 count
Owner
County
County Highway Agency

About this bridge

78th Ave SW over Creek is a concrete channel beam carrying 78th Ave SW over Creek in Stark County, North Dakota. It was built in 1935 and reconstructed in 1973, so it is 90 years old, older 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 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 20 vehicles a day, projected to reach 20 by 2038. The structure is 25 ft (7.6 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries78th Ave SW
CrossesCreek
Location10 E 1 S of Richardton
RouteCounty Highway 0
Coordinates46.87276, -102.09686
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.8 US tons
Inventory rating38.3 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width26 ft (8 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2018)
Projected traffic20 by 2038
Trucks—
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 78th Ave SW over Creek built?

It was built in 1935, making it 90 years old in 2025. It was reconstructed in 1973.

What condition is 78th Ave SW 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 July 2024.

How much traffic does 78th Ave SW over Creek carry?

About 20 vehicles per day (2018 count).

How long is 78th Ave SW over Creek?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 26 ft wide.

Who owns 78th Ave SW over Creek?

It is owned by the County Highway Agency.