Structure TRSP01 · Grand Forks County, ND

Park Road over Turtle River

Carries Park Road over Turtle River, Turtle River State Park.

Overall conditionPoor

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

How ratings work
Deck5/9 · Fair
Superstructuresets the rating3/9 · Serious
Substructure4/9 · Poor
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT60 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 3/9 · sets the ratingSubstructure 4/9

60 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 through truss.

Built1910116 years old
Length60.0 ft18.3 m
Daily traffic5counted 2019
Last inspectedMay 2024every 12 months

Location

StateNorth Dakota
CountyGrand Forks
LocationTurtle River State Park
CarriesPark Road
CrossesTurtle River
Coordinates47.93675, -97.50089

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length60.0 ft (18.3 m)
Max Span55.1 ft (16.8 m)
Deck Width18.0 ft (5.5 m)
Deck Area100.7 sq m
Main Spans1
Year Built1910

Traffic

Avg Daily Traffic5 (2019)
Truck Traffic3%
Lanes On Bridge1

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 12 months
OwnerState Park/Forest Agency
Historical SignificanceBridge is eligible for the National Register
Scour CriticalUnknown
Structure Number0000TRSP01

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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