Structure 62I00750007 · Monroe County, TN

Nfa A616 over I75

Carries Nfa A616 over I75, N Of Sweetwater.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT455 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

455 ft end to end, longest span 148 ft: about 6 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 multi-beam bridge.

Built197155 years old
Length455.1 ft138.7 m
Daily traffic130counted 2020
Last inspectedAugust 2024every 24 months

Location

StateTennessee
CountyMonroe
LocationN Of Sweetwater
CarriesNfa A616
CrossesI75
Coordinates35.63700, -84.47569

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length455.1 ft (138.7 m)
Max Span148.0 ft (45.1 m)
Deck Width32.2 ft (9.8 m)
Deck Area1359.3 sq m
Main Spans3
Year Built1971

Traffic

Avg Daily Traffic130 (2020)
Truck Traffic2%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number62I00750007

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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