Structure 210A2780003 · DeKalb County, TN

Nfa A330 over Dry Creek

Carries Nfa A330 over Dry Creek, .1mi South Of Us70.

Overall conditionPoor

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

How ratings work
Deck4/9 · Poor
Superstructuresets the rating3/9 · Serious
Substructure4/9 · Poor
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT106 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9Superstructure 3/9 · sets the ratingSubstructure 4/9

106 ft end to end, longest span 45 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 deck arch.

Built1922104 years old
Length106.0 ft32.3 m
Daily traffic20counted 2020
Last inspectedDecember 2023every 24 months

Location

StateTennessee
CountyDeKalb
Location.1mi South Of Us70
CarriesNfa A330
CrossesDry Creek
Coordinates36.00568, -85.93052

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length106.0 ft (32.3 m)
Max Span45.3 ft (13.8 m)
Deck Width13.5 ft (4.1 m)
Deck Area132.4 sq m
Main Spans2
Year Built1922

Traffic

Avg Daily Traffic20 (2020)
Truck Traffic2%
Lanes On Bridge1

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number210A2780003

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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