US Bridges

Nd 297/DEMERS Ave over Bnrr-City Street

Fair

Grand Forks County, North Dakota · 4th Ave South-Grand Forks · Structure no. 0297002696

Built
1972
53 years old, rebuilt 2009
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
1,120 ft
11 main spans
Daily traffic
18,500
2019 count
Owner
State
State Highway Agency

About this bridge

Nd 297/DEMERS Ave over Bnrr-City Street is a steel stringer/multi-beam or girder carrying Nd 297/DEMERS Ave over Bnrr-City Street in Grand Forks County, North Dakota. It was built in 1972 and reconstructed in 2009, so it is 53 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 18,500 vehicles a day, roughly 3% of them trucks, projected to reach 30,100 by 2039. The structure is 1,120 ft (341.4 m) long and 61 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesNd 297/DEMERS Ave
CrossesBnrr-City Street
Location4th Ave South-Grand Forks
RouteCity Street 297
CountyGrand Forks County
StateNorth Dakota
Coordinates47.91963, -97.03867
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.1 US tons
Inventory rating32.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans11
Design loadHS 20
Structure length1,120 ft (341.4 m)
Longest span140 ft (42.7 m)
Deck width61 ft (18.5 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,500 (2019)
Projected traffic30,100 by 2039
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.9 mi (3 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 297/DEMERS Ave over Bnrr-City Street built?

It was built in 1972, making it 53 years old in 2025. It was reconstructed in 2009.

What condition is Nd 297/DEMERS Ave over Bnrr-City Street 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 2024.

How much traffic does Nd 297/DEMERS Ave over Bnrr-City Street carry?

About 18,500 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is Nd 297/DEMERS Ave over Bnrr-City Street?

The structure is 1,120 ft (341.4 m) long with a longest span of 140 ft (42.7 m) and a deck 61 ft wide.

Who owns Nd 297/DEMERS Ave over Bnrr-City Street?

It is owned by the State Highway Agency.