US Bridges

37th Ave SW over Baukol-Noonan Mine Road

Fair

Oliver County, North Dakota · 3 South 2 East of Center · Structure no. 000000033123160

Built
1985
40 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
205 ft
3 main spans
Daily traffic
115
2018 count
Owner
County
County Highway Agency

About this bridge

37th Ave SW over Baukol-Noonan Mine Road is a prestressed concrete continuous box beam or girders - single or spread carrying 37th Ave SW over Baukol-Noonan Mine Road in Oliver County, North Dakota. It was built in 1985, so it is 40 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 115 vehicles a day, roughly 10% of them trucks, projected to reach 230 by 2038. The structure is 205 ft (62.5 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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Carries37th Ave SW
CrossesBaukol-Noonan Mine Road
Location3 South 2 East of Center
RouteCounty Highway 3323
CountyOliver County
StateNorth Dakota
Coordinates47.07548, -101.27832
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length205 ft (62.5 m)
Longest span88 ft (26.8 m)
Deck width31 ft (9.3 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic115 (2018)
Projected traffic230 by 2038
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 37th Ave SW over Baukol-Noonan Mine Road built?

It was built in 1985, making it 40 years old in 2025.

What condition is 37th Ave SW over Baukol-Noonan Mine Road 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 April 2024.

How much traffic does 37th Ave SW over Baukol-Noonan Mine Road carry?

About 115 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is 37th Ave SW over Baukol-Noonan Mine Road?

The structure is 205 ft (62.5 m) long with a longest span of 88 ft (26.8 m) and a deck 31 ft wide.

Who owns 37th Ave SW over Baukol-Noonan Mine Road?

It is owned by the County Highway Agency.