US Bridges

Nd Highway 1804 over B N Railroad

Fair

Williams County, North Dakota · 3 East of US 2 · Structure no. 1804315950

Built
1987
38 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
240 ft
2 main spans
Daily traffic
1,900
2019 count
Owner
State
State Highway Agency

About this bridge

Nd Highway 1804 over B N Railroad is a prestressed concrete continuous stringer/multi-beam or girder carrying Nd Highway 1804 over B N Railroad in Williams County, North Dakota. It was built in 1987, so it is 38 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 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 1,900 vehicles a day, roughly 7% of them trucks, projected to reach 2,500 by 2039. The structure is 240 ft (73.2 m) long and 53 ft wide. If it were closed, the detour would be 37.9 mi (61 km).

Location

Open in Google Maps
CarriesNd Highway 1804
CrossesB N Railroad
Location3 East of US 2
RouteState Highway 1804
CountyWilliams County
StateNorth Dakota
Coordinates48.14682, -103.58005
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating82.5 US tons
Inventory rating49.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length240 ft (73.2 m)
Longest span116 ft (35.4 m)
Deck width53 ft (16.3 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2019)
Projected traffic2,500 by 2039
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed37.9 mi (61 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nd Highway 1804 over B N Railroad built?

It was built in 1987, making it 38 years old in 2025.

What condition is Nd Highway 1804 over B N Railroad 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 September 2023.

How much traffic does Nd Highway 1804 over B N Railroad carry?

About 1,900 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is Nd Highway 1804 over B N Railroad?

The structure is 240 ft (73.2 m) long with a longest span of 116 ft (35.4 m) and a deck 53 ft wide.

Who owns Nd Highway 1804 over B N Railroad?

It is owned by the State Highway Agency.