Structure 7024700003 · Campbell County, TN

Nfa 2470 (sa 0707) over Norris Lake Cedar Creek

Carries Nfa 2470 (sa 0707) over Norris Lake Cedar Creek, 5 M SE Of Sr9-sr63 Jct.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT383 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

383 ft end to end, longest span 161 ft: about 5 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 multi-beam bridge.

Built198739 years old
Length382.9 ft116.7 m
Daily traffic397counted 2021
Last inspectedMay 2024every 24 months

Location

StateTennessee
CountyCampbell
Location5 M SE Of Sr9-sr63 Jct
CarriesNfa 2470 (sa 0707)
CrossesNorris Lake Cedar Creek
Coordinates36.36752, -84.03571

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length382.9 ft (116.7 m)
Max Span161.1 ft (49.1 m)
Deck Width26.2 ft (8 m)
Deck Area933.6 sq m
Main Spans3
Year Built1987

Traffic

Avg Daily Traffic397 (2021)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number07024700003

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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