Structure 83SR1090049 · Sumner County, TN

SR 109 over Branch

Carries SR 109 over Branch, 1 M NE Jct Sr109&sr25.

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 FT69 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 69 ft across with 3 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.

Built199333 years old
Length68.6 ft20.9 m
Daily traffic15,029counted 2021
Last inspectedAugust 2024every 24 months

Location

StateTennessee
CountySumner
Location1 M NE Jct Sr109&sr25
CarriesSR 109
CrossesBranch
Coordinates36.41200, -86.47200

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length68.6 ft (20.9 m)
Max Span15.1 ft (4.6 m)
Deck Area541.3 sq m
Main Spans3
Year Built1993

Traffic

Avg Daily Traffic15,029 (2021)
Truck Traffic9%
Lanes On Bridge4

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number83SR1090049

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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