Structure FRGO29 · Cass County, ND

40th AVE N over Red River Of The North

Carries 40th AVE N over Red River Of The North, County Road 20 In Fargo.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT954 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

954 ft end to end, longest span 110 ft: about 2.7 football fields. 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.

Built200620 years old
Length954.1 ft290.8 m
Daily traffic5,381counted 2022
Last inspectedSeptember 2021every 24 months

Location

StateNorth Dakota
CountyCass
LocationCounty Road 20 In Fargo
Carries40th AVE N
CrossesRed River Of The North
Coordinates46.93382, -96.79167

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length954.1 ft (290.8 m)
Max Span109.9 ft (33.5 m)
Deck Width51.8 ft (15.8 m)
Deck Area4594.6 sq m
Main Spans12
Year Built2006

Traffic

Avg Daily Traffic5,381 (2022)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2021
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number0000FRGO29

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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