Structure 1148130 · Adams County, ND

8th AVE NE over Timber Creek

Carries 8th AVE NE over Timber Creek, 7 East 11 North Lemmon Sd.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT39 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

39 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 multi-beam bridge.

Built193888 years old
Length39.4 ft12 m
Daily traffic10counted 2019
Last inspectedSeptember 2023every 24 months

Location

StateNorth Dakota
CountyAdams
Location7 East 11 North Lemmon Sd
Carries8th AVE NE
CrossesTimber Creek
Coordinates46.10404, -102.00376

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length39.4 ft (12 m)
Max Span37.1 ft (11.3 m)
Deck Width20.0 ft (6.1 m)
Deck Area73.2 sq m
Main Spans1
Year Built1938

Traffic

Avg Daily Traffic10 (2019)
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number000000001148130

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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