US Bridges

43rd Avenue over Sweet Briar Creek

Fair

Morton County, North Dakota · 2 East 5 North New Salem · Structure no. 000000030135050

Built
1970
55 years old
Condition
Fair
inspected July 2023
Type
Channel Beam
Concrete
Length
87 ft
3 main spans
Daily traffic
15
2018 count
Owner
County
County Highway Agency

About this bridge

43rd Avenue over Sweet Briar Creek is a concrete channel beam carrying 43rd Avenue over Sweet Briar Creek in Morton County, North Dakota. It was built in 1970, so it is 55 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 15 vehicles a day, projected to reach 15 by 2038. The structure is 87 ft (26.5 m) long and 23 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
Carries43rd Avenue
CrossesSweet Briar Creek
Location2 East 5 North New Salem
RouteCounty Highway 0
CountyMorton County
StateNorth Dakota
Coordinates46.91258, -101.3654
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans3
Design loadUnknown
Structure length87 ft (26.5 m)
Longest span34 ft (10.4 m)
Deck width23 ft (6.9 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2018)
Projected traffic15 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 43rd Avenue over Sweet Briar Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is 43rd Avenue over Sweet Briar Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2023.

How much traffic does 43rd Avenue over Sweet Briar Creek carry?

About 15 vehicles per day (2018 count).

How long is 43rd Avenue over Sweet Briar Creek?

The structure is 87 ft (26.5 m) long with a longest span of 34 ft (10.4 m) and a deck 23 ft wide.

Who owns 43rd Avenue over Sweet Briar Creek?

It is owned by the County Highway Agency.