Structure 13951040 · Hall County, GA

SR 284 over Chatt Riv (lake Lanier)

Carries SR 284 over Chatt Riv (lake Lanier), 4 Mi N Of Gainesville.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · 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 FT952 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

952 ft end to end, longest span 136 ft: about 2.6 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.

Built201511 years old
Length952.1 ft290.2 m
Daily traffic8,300counted 2024
Last inspectedJune 2023every 24 months

Location

StateGeorgia
CountyHall
Location4 Mi N Of Gainesville
CarriesSR 284
CrossesChatt Riv (lake Lanier)
Coordinates34.35022, -83.79438

Physical Characteristics

MaterialConcrete Continuous
DesignStringer/Multi-beam
Total Length952.1 ft (290.2 m)
Max Span136.2 ft (41.5 m)
Deck Width44.0 ft (13.4 m)
Deck Area3888.7 sq m
Main Spans7
Year Built2015

Traffic

Avg Daily Traffic8,300 (2024)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000013951040

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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