Structure 94912032 · Morton County, ND

I-94 Business Loop over Heart River

Carries I-94 Business Loop over Heart River, 4 West Of Nd 6.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT349 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

349 ft end to end, longest span 117 ft: about 5 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.

Built201115 years old
Length349.1 ft106.4 m
Daily traffic1,475counted 2019
Last inspectedJuly 2023every 24 months

Location

StateNorth Dakota
CountyMorton
Location4 West Of Nd 6
CarriesI-94 Business Loop
CrossesHeart River
Coordinates46.83358, -100.97391

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length349.1 ft (106.4 m)
Max Span116.8 ft (35.6 m)
Deck Width42.7 ft (13 m)
Deck Area1383.2 sq m
Main Spans3
Year Built2011

Traffic

Avg Daily Traffic1,475 (2019)
Truck Traffic12%
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 Critical8 — Stable, low risk
Structure Number0094912032

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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