US Bridges

County Highway over Red River of the North

PoorPosted for load

Traill County, North Dakota · 9 East 1 North Buxton · Structure no. 000000049129050

Built
1957
68 years old
Condition
Poor
inspected September 2024
Type
Truss - Thru
Steel
Length
757 ft
2 main spans
Daily traffic
340
2018 count
Owner
County
County Highway Agency

About this bridge

County Highway over Red River of the North is a steel truss - thru carrying County Highway over Red River of the North in Traill County, North Dakota. It was built in 1957, so it is 68 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 340 vehicles a day, roughly 10% of them trucks, projected to reach 340 by 2038. The structure is 757 ft (230.7 m) long and 26 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCounty Highway
CrossesRed River of the North
Location9 East 1 North Buxton
RouteCounty Highway 4906
Coordinates47.60784, -96.85511
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment2: Basically intolerable, requiring high priority of replacement
Operating rating26.8 US tons
Inventory rating16 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans2 (+5 approach)
Design loadH 20
Structure length757 ft (230.7 m)
Longest span220 ft (67.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck16 ft (4.9 m)

Traffic and service

Average daily traffic340 (2018)
Projected traffic340 by 2038
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.6 million
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Red River of the North built?

It was built in 1957, making it 68 years old in 2025.

What condition is County Highway over Red River of the North in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does County Highway over Red River of the North carry?

About 340 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is County Highway over Red River of the North?

The structure is 757 ft (230.7 m) long with a longest span of 220 ft (67.1 m) and a deck 26 ft wide.

Who owns County Highway over Red River of the North?

It is owned by the County Highway Agency.