Structure 8951450 · DeKalb County, GA

Rock Chapel Road over Yellow River

Carries Rock Chapel Road over Yellow River, Dekalb-gwinnett Co Line.

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
SEMI-TRUCK · 72 FT256 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

256 ft end to end, longest span 138 ft: about 4 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.

Built200026 years old
Length255.9 ft78 m
Daily traffic29,100counted 2024
Last inspectedApril 2024every 24 months

Location

StateGeorgia
CountyDeKalb
LocationDekalb-gwinnett Co Line
CarriesRock Chapel Road
CrossesYellow River
Coordinates33.77263, -84.05826

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length255.9 ft (78 m)
Max Span138.1 ft (42.1 m)
Deck Width97.1 ft (29.6 m)
Deck Area2308.8 sq m
Main Spans3
Year Built2000

Traffic

Avg Daily Traffic29,100 (2024)
Truck Traffic1%
Lanes On Bridge5

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000008951450

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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