US Bridges

County Highway over So. Branch Turtle River

PoorPosted for load

Grand Forks County, North Dakota · 1 West 3 North Larimore · Structure no. 000000018112180

Built
1966
59 years old
Condition
Poor
inspected July 2024
Type
Truss - Thru
Steel
Length
55 ft
1 main span
Daily traffic
95
2019 count
Owner
County
County Highway Agency

About this bridge

County Highway over So. Branch Turtle River is a steel truss - thru carrying County Highway over So. Branch Turtle River in Grand Forks County, North Dakota. It was built in 1966, so it is 59 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 95 vehicles a day, projected to reach 95 by 2039. The structure is 55 ft (16.8 m) long and 18 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesSo. Branch Turtle River
Location1 West 3 North Larimore
RouteCounty Highway 0
CountyGrand Forks County
StateNorth Dakota
Coordinates47.94029, -97.64539
Functional classRural Local

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
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating9.7 US tons
Inventory rating5.8 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length55 ft (16.8 m)
Longest span52 ft (15.8 m)
Deck width18 ft (5.5 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic95 (2019)
Projected traffic95 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$251,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over So. Branch Turtle River built?

It was built in 1966, making it 59 years old in 2025.

What condition is County Highway over So. Branch Turtle River 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 July 2024.

How much traffic does County Highway over So. Branch Turtle River carry?

About 95 vehicles per day (2019 count).

How long is County Highway over So. Branch Turtle River?

The structure is 55 ft (16.8 m) long with a longest span of 52 ft (15.8 m) and a deck 18 ft wide.

Who owns County Highway over So. Branch Turtle River?

It is owned by the County Highway Agency.