US Bridges

Columbia Road over Demers Ave & Bnrr

Fair

Grand Forks County, North Dakota · Demers Ave-Bnrr-G. Forks · Structure no. 0297001276

Built
1984
41 years old, rebuilt 1989
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Single or Spread
Steel Continuous
Length
1,420 ft
10 main spans
Daily traffic
19,000
2019 count
Owner
City
City or Municipal Highway Agency

About this bridge

Columbia Road over Demers Ave & Bnrr is a steel continuous box beam or girders - single or spread carrying Columbia Road over Demers Ave & Bnrr in Grand Forks County, North Dakota. It was built in 1984 and reconstructed in 1989, so it is 41 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 19,000 vehicles a day, roughly 2% of them trucks, projected to reach 20,900 by 2039. The structure is 1,420 ft (432.8 m) long and 65 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesColumbia Road
CrossesDemers Ave & Bnrr
LocationDemers Ave-Bnrr-G. Forks
RouteCity Street 0
CountyGrand Forks County
StateNorth Dakota
Coordinates47.91823, -97.06631
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.7 US tons
Inventory rating28.4 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length1,420 ft (432.8 m)
Longest span168 ft (51.2 m)
Deck width65 ft (19.9 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,000 (2019)
Projected traffic20,900 by 2039
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$2.1 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Columbia Road over Demers Ave & Bnrr built?

It was built in 1984, making it 41 years old in 2025. It was reconstructed in 1989.

What condition is Columbia Road over Demers Ave & Bnrr 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 2023.

How much traffic does Columbia Road over Demers Ave & Bnrr carry?

About 19,000 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is Columbia Road over Demers Ave & Bnrr?

The structure is 1,420 ft (432.8 m) long with a longest span of 168 ft (51.2 m) and a deck 65 ft wide.

Who owns Columbia Road over Demers Ave & Bnrr?

It is owned by the City or Municipal Highway Agency.