Structure 281139627 · Eddy County, ND

Irrft US Hiway 281 over Sheyenne River

Carries Irrft US Hiway 281 over Sheyenne River, 1 North Of Sheyenne.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT110 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

110 ft end to end, longest span 41 ft. Lengths and the car 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 box-beam bridge.

Built198442 years old
Length109.9 ft33.5 m
Daily traffic1,250counted 2019
Last inspectedOctober 2023every 24 months

Location

StateNorth Dakota
CountyEddy
Location1 North Of Sheyenne
CarriesIrrft US Hiway 281
CrossesSheyenne River
Coordinates47.83898, -99.12519

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignBox Beam - Single/Spread
Total Length109.9 ft (33.5 m)
Max Span41.0 ft (12.5 m)
Deck Width38.7 ft (11.8 m)
Deck Area395.3 sq m
Main Spans3
Year Built1984

Traffic

Avg Daily Traffic1,250 (2019)
Truck Traffic14%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number0281139627

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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