Structure 18118191 · Grand Forks County, ND

County Road over Turtle River

Carries County Road over Turtle River, 1 West 1 North Arvilla.

Overall conditionGood

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

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT63 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

63 ft end to end. 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.

Built199630 years old
Length63.3 ft19.3 m
Daily traffic60counted 2019
Last inspectedJuly 2023every 24 months

Location

StateNorth Dakota
CountyGrand Forks
Location1 West 1 North Arvilla
CarriesCounty Road
CrossesTurtle River
Coordinates47.93145, -97.51599

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length63.3 ft (19.3 m)
Max Span60.4 ft (18.4 m)
Deck Width29.9 ft (9.1 m)
Deck Area175.6 sq m
Main Spans1
Year Built1996

Traffic

Avg Daily Traffic60 (2019)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number000000018118191

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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