Structure 45S24650005 · Jefferson County, TN

Nfa 1296 over Branch

Carries Nfa 1296 over Branch, E. Dumplin Valley Road.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT27 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

27 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 slab bridge.

Built199828 years old
Length26.6 ft8.1 m
Daily traffic3,045counted 2021
Last inspectedMay 2023every 24 months

Location

StateTennessee
CountyJefferson
LocationE. Dumplin Valley Road
CarriesNfa 1296
CrossesBranch
Coordinates36.06218, -83.45555

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length26.6 ft (8.1 m)
Max Span23.3 ft (7.1 m)
Deck Width34.1 ft (10.4 m)
Deck Area84.2 sq m
Main Spans1
Year Built1998

Traffic

Avg Daily Traffic3,045 (2021)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number45S24650005

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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