Structure 200153174 · Mercer County, ND

Nd Highway 200 over Knife River

Carries Nd Highway 200 over Knife River, 2 East Of Hazen.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT260 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

260 ft end to end, longest span 95 ft: about 4 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.

Built1966rebuilt 2013
Length259.8 ft79.2 m
Daily traffic2,280counted 2019
Last inspectedJuly 2023every 24 months

Location

StateNorth Dakota
CountyMercer
Location2 East Of Hazen
CarriesNd Highway 200
CrossesKnife River
Coordinates47.29932, -101.58855

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length259.8 ft (79.2 m)
Max Span95.1 ft (29 m)
Deck Width36.1 ft (11 m)
Deck Area871.2 sq m
Main Spans3
Year Built1966 (reconstructed 2013)

Traffic

Avg Daily Traffic2,280 (2019)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number0200153174

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.

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