Structure 590A3210005 · Marshall County, TN

Nfa A321 over Mooresville Creek

Carries Nfa A321 over Mooresville Creek, 2.6 Mi SW Jct I65&sr373.

Overall conditionGood

Set by its lowest-rated component: Superstructure and Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT70 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 7/9 · sets the ratingSubstructure 7/9 · sets the rating

70 ft end to end, longest span 35 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 tee-beam bridge.

Built196066 years old
Length69.9 ft21.3 m
Daily traffic30counted 2020
Last inspectedJune 2024every 24 months

Location

StateTennessee
CountyMarshall
Location2.6 Mi SW Jct I65&sr373
CarriesNfa A321
CrossesMooresville Creek
Coordinates35.41883, -86.90916

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length69.9 ft (21.3 m)
Max Span35.1 ft (10.7 m)
Deck Width24.0 ft (7.3 m)
Deck Area155.5 sq m
Main Spans2
Year Built1960

Traffic

Avg Daily Traffic30 (2020)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number590A3210005

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.

Nearby Bridges