US Bridges

75th Ave over Drainage Area

Good

Morton County, North Dakota · 1 East 7 South of Hebron · Structure no. 000000030103130

Built
1970
55 years old
Condition
Good
inspected September 2024
Type
Channel Beam
Concrete
Length
26 ft
1 main span
Daily traffic
25
2018 count
Owner
County
County Highway Agency

About this bridge

75th Ave over Drainage Area is a concrete channel beam carrying 75th Ave over Drainage Area in Morton County, North Dakota. It was built in 1970, so it is 55 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 25 vehicles a day, projected to reach 25 by 2038. The structure is 26 ft (7.9 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries75th Ave
CrossesDrainage Area
Location1 East 7 South of Hebron
RouteCounty Highway 0
Coordinates46.80181, -102.03361
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.2 US tons
Inventory rating39.6 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span23 ft (7 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2018)
Projected traffic25 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was 75th Ave over Drainage Area built?

It was built in 1970, making it 55 years old in 2025.

What condition is 75th Ave over Drainage Area in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does 75th Ave over Drainage Area carry?

About 25 vehicles per day (2018 count).

How long is 75th Ave over Drainage Area?

The structure is 26 ft (7.9 m) long with a longest span of 23 ft (7 m) and a deck 26 ft wide.

Who owns 75th Ave over Drainage Area?

It is owned by the County Highway Agency.