US Bridges

Interstate 29 over Cp Railway Separation

Fair

Richland County, North Dakota · 1 North of Nd 11 · Structure no. 0029008999 R

Built
1973
52 years old, rebuilt 2016
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
205 ft
3 main spans
Daily traffic
2,275
2019 count
Owner
State
State Highway Agency

About this bridge

Interstate 29 over Cp Railway Separation is a steel continuous stringer/multi-beam or girder carrying Interstate 29 over Cp Railway Separation in Richland County, North Dakota. It was built in 1973 and reconstructed in 2016, so it is 52 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 2,275 vehicles a day, roughly 24% of them trucks, projected to reach 2,275 by 2039. The structure is 205 ft (62.5 m) long and 43 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesInterstate 29
CrossesCp Railway Separation
Location1 North of Nd 11
RouteInterstate 29
Coordinates46.06501, -96.83544
Functional classRural Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating67.6 US tons
Inventory rating40.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length205 ft (62.5 m)
Longest span78 ft (23.8 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,275 (2019)
Projected traffic2,275 by 2039
Trucks24%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 Interstate 29 over Cp Railway Separation built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2016.

What condition is Interstate 29 over Cp Railway Separation 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 May 2024.

How much traffic does Interstate 29 over Cp Railway Separation carry?

About 2,275 vehicles per day (2019 count), of which roughly 24% are trucks.

How long is Interstate 29 over Cp Railway Separation?

The structure is 205 ft (62.5 m) long with a longest span of 78 ft (23.8 m) and a deck 43 ft wide.

Who owns Interstate 29 over Cp Railway Separation?

It is owned by the State Highway Agency.