Structure 21114120 · Hettinger County, ND

County Road over Cannonball River

Carries County Road over Cannonball River, 2 N. 4 W. Of Regent.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating3/9 · Serious
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT154 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 3/9 · sets the rating

154 ft end to end, longest span 69 ft: about 2 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built194482 years old
Length153.9 ft46.9 m
Daily traffic26counted 2019
Last inspectedOctober 2020every 12 months

Location

StateNorth Dakota
CountyHettinger
Location2 N. 4 W. Of Regent
CarriesCounty Road
CrossesCannonball River
Coordinates46.45602, -102.63461

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length153.9 ft (46.9 m)
Max Span68.9 ft (21 m)
Deck Width24.0 ft (7.3 m)
Deck Area342.4 sq m
Main Spans3
Year Built1944

Traffic

Avg Daily Traffic26 (2019)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2020
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number000000021114120

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

Nearby Bridges