Structure DAPAMCHOL000019 · Hawkins County, TN

Road 1909 over Drainage Ditch

Carries Road 1909 over Drainage Ditch, East Of Acid Plant.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT37 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

37 ft end to end. 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 multi-beam bridge.

Built199036 years old
Length37.1 ft11.3 m
Daily traffic50counted 2016
Last inspectedJuly 2024every 24 months

Location

StateTennessee
CountyHawkins
LocationEast Of Acid Plant
CarriesRoad 1909
CrossesDrainage Ditch
Coordinates36.53605, -82.63734

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length37.1 ft (11.3 m)
Max Span33.8 ft (10.3 m)
Deck Width29.9 ft (9.1 m)
Deck Area102.8 sq m
Main Spans1
Year Built1990

Traffic

Avg Daily Traffic50 (2016)
Truck Traffic99%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerArmy
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure NumberDAPAMCHOL000019

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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