Structure 27SR0760023 · Gibson County, TN

Fap 366 over SR 366 / SR 76 & Csx Rr

Carries Fap 366 over SR 366 / SR 76 & Csx Rr, In Humbolt.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT500 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

500 ft end to end: about 7 semi-trucks nose to tail. Lengths and the semi-truck 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 box-beam bridge.

Built198343 years old
Length500.0 ft152.4 m
Daily traffic2,411counted 2021
Last inspectedJuly 2023every 24 months

Location

StateTennessee
CountyGibson
LocationIn Humbolt
CarriesFap 366
CrossesSR 366 / SR 76 & Csx Rr
Coordinates35.81603, -88.93269

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Single/Spread
Total Length500.0 ft (152.4 m)
Max Span86.6 ft (26.4 m)
Deck Width49.9 ft (15.2 m)
Deck Area2316.5 sq m
Main Spans1
Year Built1983

Traffic

Avg Daily Traffic2,411 (2021)
Truck Traffic9%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number27SR0760023

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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