Structure 790A6730001 · Shelby County, TN

Nfa D994 over Branch

Carries Nfa D994 over Branch, George R James Rd-shelby.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT51 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 6/9

51 ft end to end, longest span 17 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 channel-beam bridge.

Built197254 years old
Length50.9 ft15.5 m
Daily traffic80counted 2020
Last inspectedApril 2023every 24 months

Location

StateTennessee
CountyShelby
LocationGeorge R James Rd-shelby
CarriesNfa D994
CrossesBranch
Coordinates35.18211, -89.65328

Physical Characteristics

MaterialConcrete
DesignChannel Beam
Total Length50.9 ft (15.5 m)
Max Span17.1 ft (5.2 m)
Deck Width32.5 ft (9.9 m)
Deck Area153.4 sq m
Main Spans3
Year Built1972

Traffic

Avg Daily Traffic80 (2020)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical3 — Scour critical
Structure Number790A6730001

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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