Structure 73023740005 · Roane County, TN

Nfa 2374 (sa 7317) over Clinch River

Carries Nfa 2374 (sa 7317) over Clinch River, Old Kingston Ferry Locat..

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT786 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

786 ft end to end, longest span 300 ft: about 2.2 football fields. 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 multi-beam bridge.

Built198739 years old
Length786.1 ft239.6 m
Daily traffic2,717counted 2021
Last inspectedMarch 2023every 24 months

Location

StateTennessee
CountyRoane
LocationOld Kingston Ferry Locat.
CarriesNfa 2374 (sa 7317)
CrossesClinch River
Coordinates35.88413, -84.48997

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length786.1 ft (239.6 m)
Max Span299.9 ft (91.4 m)
Deck Width32.2 ft (9.8 m)
Deck Area2348.1 sq m
Main Spans4
Year Built1987

Traffic

Avg Daily Traffic2,717 (2021)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number73023740005

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