US Bridges

County Highway over Elm River

Good

Traill County, North Dakota · 7 East 2 North Grandin · Structure no. 000000049129280

Built
1995
30 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
218 ft
3 main spans
Daily traffic
175
2018 count
Owner
County
County Highway Agency

About this bridge

County Highway over Elm River is a prestressed concrete continuous box beam or girders - single or spread carrying County Highway over Elm River in Traill County, North Dakota. It was built in 1995, so it is 30 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 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 175 vehicles a day, roughly 14% of them trucks, projected to reach 140 by 2038. The structure is 218 ft (66.4 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Highway
CrossesElm River
Location7 East 2 North Grandin
RouteCounty Highway 4928
Coordinates47.26708, -96.8574
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.7 US tons
Inventory rating23.1 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length218 ft (66.4 m)
Longest span80 ft (24.4 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic175 (2018)
Projected traffic140 by 2038
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$131,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Elm River built?

It was built in 1995, making it 30 years old in 2025.

What condition is County Highway over Elm River 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 August 2024.

How much traffic does County Highway over Elm River carry?

About 175 vehicles per day (2018 count), of which roughly 14% are trucks.

How long is County Highway over Elm River?

The structure is 218 ft (66.4 m) long with a longest span of 80 ft (24.4 m) and a deck 33 ft wide.

Who owns County Highway over Elm River?

It is owned by the County Highway Agency.