US Bridges

Nd Highway 200 over Knife River Overflow

Fair

Mercer County, North Dakota · 1 East of Hazen · Structure no. 0200152869

Built
1952
73 years old, rebuilt 2013
Condition
Fair
inspected July 2023
Type
Slab
Concrete Continuous
Length
120 ft
4 main spans
Daily traffic
2,300
2019 count
Owner
State
State Highway Agency

About this bridge

Nd Highway 200 over Knife River Overflow is a concrete continuous slab carrying Nd Highway 200 over Knife River Overflow in Mercer County, North Dakota. It was built in 1952 and reconstructed in 2013, so it is 73 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 2,300 vehicles a day, roughly 11% of them trucks, projected to reach 2,147 by 2039. The structure is 120 ft (36.6 m) long and 33 ft wide. If it were closed, the detour would be 29.2 mi (47 km).

CarriesNd Highway 200
CrossesKnife River Overflow
Location1 East of Hazen
RouteState Highway 200
Coordinates47.29932, -101.59511
Functional classRural Principal Arterial - Other

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.3 US tons
Inventory rating25.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length120 ft (36.6 m)
Longest span32 ft (9.8 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2019)
Projected traffic2,147 by 2039
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.2 mi (47 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$272,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Nd Highway 200 over Knife River Overflow built?

It was built in 1952, making it 73 years old in 2025. It was reconstructed in 2013.

What condition is Nd Highway 200 over Knife River Overflow 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 Nd Highway 200 over Knife River Overflow carry?

About 2,300 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is Nd Highway 200 over Knife River Overflow?

The structure is 120 ft (36.6 m) long with a longest span of 32 ft (9.8 m) and a deck 33 ft wide.

Who owns Nd Highway 200 over Knife River Overflow?

It is owned by the State Highway Agency.