Structure 19SR0010031 · Davidson County, TN

Fap 1 over Mill Creek

Carries Fap 1 over Mill Creek, .9 M SE Jct I24&sr1.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT177 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 4/9 · sets the ratingSubstructure 5/9

177 ft end to end, longest span 65 ft: about 2 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.

Built1940rebuilt 2010
Length177.5 ft54.1 m
Daily traffic29,173counted 2021
Last inspectedFebruary 2023every 24 months

Location

StateTennessee
CountyDavidson
Location.9 M SE Jct I24&sr1
CarriesFap 1
CrossesMill Creek
Coordinates36.12903, -86.71432

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length177.5 ft (54.1 m)
Max Span65.0 ft (19.8 m)
Deck Width101.0 ft (30.8 m)
Deck Area1666.3 sq m
Main Spans3
Year Built1940 (reconstructed 2010)

Traffic

Avg Daily Traffic29,173 (2021)
Truck Traffic9%
Lanes On Bridge4

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number19SR0010031

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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