US Bridges

Nd Highway over E Br Chanta Peta Creek

Good

Morton County, North Dakota · 4 West Nd 6 · Structure no. 0021118908

Built
1987
38 years old
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
750
2017 count
Owner
State
State Highway Agency

About this bridge

Nd Highway over E Br Chanta Peta Creek is a concrete culvert carrying Nd Highway over E Br Chanta Peta Creek in Morton County, North Dakota. It was built in 1987, so it is 38 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 750 vehicles a day, roughly 12% of them trucks, projected to reach 797 by 2037. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 55.9 mi (90 km).

CarriesNd Highway
CrossesE Br Chanta Peta Creek
Location4 West Nd 6
RouteState Highway 21
Coordinates46.47278, -100.99606
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.7 US tons
Inventory rating30.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2017)
Projected traffic797 by 2037
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed55.9 mi (90 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nd Highway over E Br Chanta Peta Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Nd Highway over E Br Chanta Peta Creek 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 May 2023.

How much traffic does Nd Highway over E Br Chanta Peta Creek carry?

About 750 vehicles per day (2017 count), of which roughly 12% are trucks.

How long is Nd Highway over E Br Chanta Peta Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).

Who owns Nd Highway over E Br Chanta Peta Creek?

It is owned by the State Highway Agency.