Structure 10A0520001 · Anderson County, TN

Nfa A052 347452w over Csx Railroad

Carries Nfa A052 347452w over Csx Railroad, 2.7 M E Of Laurel Grove.

Overall conditionPoor

Set by its lowest-rated component: Deck at 4 of 9.

How ratings work
Decksets the rating4/9 · Poor
Superstructure6/9 · Satisfactory
Substructure5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT81 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9 · sets the ratingSuperstructure 6/9Substructure 5/9

81 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.

Built1914rebuilt 1990
Length80.7 ft24.6 m
Daily traffic660counted 2020
Last inspectedJuly 2023every 24 months

Location

StateTennessee
CountyAnderson
Location2.7 M E Of Laurel Grove
CarriesNfa A052 347452w
CrossesCsx Railroad
Coordinates36.11288, -84.18457

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length80.7 ft (24.6 m)
Max Span30.5 ft (9.3 m)
Deck Width17.1 ft (5.2 m)
Deck Area127.9 sq m
Main Spans1
Year Built1914 (reconstructed 1990)

Traffic

Avg Daily Traffic660 (2020)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number010A0520001

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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