Structure 45SR0340009 · Jefferson County, TN

Fap 34 over Mossy Creek

Carries Fap 34 over Mossy Creek, 1.3 M NE Of Jefferson Cit.

Overall conditionFair

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

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT51 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 51 ft across with 4 openings. 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, so those are drawn as typical for a culvert.

Built1949rebuilt 1966
Length51.2 ft15.6 m
Daily traffic17,540counted 2021
Last inspectedOctober 2023every 24 months

Location

StateTennessee
CountyJefferson
Location1.3 M NE Of Jefferson Cit
CarriesFap 34
CrossesMossy Creek
Coordinates36.12217, -83.47445

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length51.2 ft (15.6 m)
Max Span12.1 ft (3.7 m)
Deck Area113.9 sq m
Main Spans4
Year Built1949 (reconstructed 1966)

Traffic

Avg Daily Traffic17,540 (2021)
Truck Traffic9%
Lanes On Bridge4

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number45SR0340009

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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