US Bridges

147th Ave NE over South Branch Park River

Poor

Walsh County, North Dakota · 3 West of Grafton · Structure no. 000000050139080

Built
1990
35 years old, rebuilt 2023
Condition
Poor
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
53 ft
2 main spans
Daily traffic
22
2022 count
Owner
County
County Highway Agency

About this bridge

147th Ave NE over South Branch Park River is a steel stringer/multi-beam or girder carrying 147th Ave NE over South Branch Park River in Walsh County, North Dakota. It was built in 1990 and reconstructed in 2023, so it is 35 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 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.

It carries about 22 vehicles a day, projected to reach 30 by 2042. The structure is 53 ft (16.2 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries147th Ave NE
CrossesSouth Branch Park River
Location3 West of Grafton
RouteCounty Highway 0
Coordinates48.42721, -97.47001
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating33.8 US tons
Inventory rating25 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans2
Design loadUnknown
Structure length53 ft (16.2 m)
Longest span34 ft (10.4 m)
Deck width26 ft (8 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22 (2022)
Projected traffic30 by 2042
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 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 147th Ave NE over South Branch Park River built?

It was built in 1990, making it 35 years old in 2025. It was reconstructed in 2023.

What condition is 147th Ave NE over South Branch Park 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 2023.

How much traffic does 147th Ave NE over South Branch Park River carry?

About 22 vehicles per day (2022 count).

How long is 147th Ave NE over South Branch Park River?

The structure is 53 ft (16.2 m) long with a longest span of 34 ft (10.4 m) and a deck 26 ft wide.

Who owns 147th Ave NE over South Branch Park River?

It is owned by the County Highway Agency.