Noise Levels in Bayou Gauche, LA | Find Quiet Neighborhoods With Our Sound Map
47 dBA
Average noise across Bayou Gauche
Quiet office
62
Residents above the EPA 55 dBA threshold
3% of Bayou Gauche residents
63 dBA
Loudest residential point
Busy restaurant
This map shows modeled outdoor noise across Bayou Gauche at 100-meter resolution, combining road, aviation, and rail sources. Green areas measure below 45 dBA. Orange and red exceed the EPA's 55 dBA outdoor threshold linked to long-term health effects. Use the layer toggles to view each source on its own or all together.
Overall
Road
Rail
Aviation
Click the map to explore
35 dBa55 dBa (EPA limit)90+ dBa
3545557090
Quietest (dBA)Loudest
Colorblind friendlyoff
What the numbers sound like
30 dBAWhisper
40 dBASoft rainfall
45 dBAQuiet suburban street at night
50 dBAQuiet office
55 dBAEPA outdoor threshold: light traffic 100 ft away
60 dBANormal conversation an arm's length away
65 dBABusy restaurant
70 dBAHighway traffic 50 ft away
80 dBACity bus interior
Population Above the EPA Outdoor Threshold
The EPA's 55 dBA outdoor reference level is a common benchmark for residential noise exposure, especially for activity interference, annoyance, and long-term community noise concerns. About 62 Bayou Gauche residents, or 2.9%, live above that level. By land area, 4.0% of Bayou Gauche is above 55 dBA.
Average noise levels for Bayou Gauche residents, grouped by direction from the center of Bayou Gauche. Western Bayou Gauche carries the highest population-weighted average; Eastern Bayou Gauche carries the lowest. Just 2% of residents in Eastern Bayou Gauche live in blocks above the EPA's 55 dBA threshold, a fraction of the share in Western Bayou Gauche.
Central Bayou Gauche
47.6 dBA · Mostly quiet
Quiet office
4% of people above 55 dBA
QuietLoud
Eastern Bayou Gauche
43.9 dBA · Quiet
Quiet suburban street at night
2% of people above 55 dBA
QuietLoud
Northern Bayou Gauche
46.0 dBA · Mostly quiet
Quiet suburban street at night
4% of people above 55 dBA
QuietLoud
Southern Bayou Gauche
47.3 dBA · Mostly quiet
Quiet office
3% of people above 55 dBA
QuietLoud
Western Bayou Gauche
48.4 dBA · Mostly quiet
Quiet office
0% of people above 55 dBA
QuietLoud
Western Bayou Gauche sounds about 37% louder than Eastern Bayou Gauche to the human ear, a 4.5 dBA gap. Every 10 dBA roughly doubles perceived loudness. Within any of these directions, two homes a quarter mile apart can still differ by 10 or more dBA depending on how close they sit to a major highway.
How far back from La 632 do you need to be?
La 632 produces an estimated 60 dBA at its loudest centerline points. Noise drops logarithmically with distance, with the exact rate depending on what's between you and the road. Tree cover, walls, terrain, and pavement type all matter. At roughly a quarter mile back, traffic fades into the noise level of a soft rainfall.
At source
60 dBA
Normal conversation an arm’s length away
165 ft
47 dBA
Quiet office
330 ft
40 dBA
Soft rainfall
660 ft
35 dBA
Soft rainfall
¼ mile
35 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 4% of Bayou Gauche sits under tree canopy (much lighter than most cities) and roughly 14% is impervious surface like pavement and rooftops. Both are folded into the per-place decay rate above. Heavier canopy pulls noise down faster with distance; impervious surfaces slow the drop.
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Airport Noise
Louis Armstrong New Orleans International (MSY) sits northeast of Bayou Gauche. The U.S. Department of Transportation models aviation noise around this airport from federal traffic data, and the model uses those federal measurements rather than synthetic predictions.
Blocks under the approach and departure paths carry combined road-plus-aviation noise, with some exceeding 65 dBA on the map's Overall layer. Blocks on the opposite side of Bayou Gauche, particularly to the southwest, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Bayou Gauche
The bar chart below shows the share of Bayou Gauche residents in each noise band. About 100% of residents live below the EPA's 55 dBA threshold, and roughly 0% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Bayou Gauche Compares
Bayou Gauche sits the lowest among the peer group. Below: how Bayou Gauche's average outdoor noise and share of residents above the EPA threshold compare with Des Allemands, Boutte, Hahnville, and Norco.
Average noise level (dBA)
Bayou Gauche's 46.8 dBA pop-weighted average is the lowest among the peer group. Louisiana as a whole averages 50.7 dBA and the U.S. averages 52.0 dBA. Both are lower than Bayou Gauche because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 2.9% of Bayou Gauche residents live in blocks where outdoor levels exceed the EPA's 55 dBA threshold. That's fewer than any of its peer group. Measured by land area instead, 4.0% of Bayou Gauche's footprint sits above 55 dBA, against a Louisiana average of 28.9% and a national average of 28.1%.
What This Means if You're Moving to Bayou Gauche
Distance from highways matters more than the neighborhood name. Two homes in the same zip code can differ by 20 dBA if one sits 100 meters from La 632 and the other 500 meters away. The model captures this at 100-meter resolution, so noise exposure changes block by block.
Tree canopy can help reduce modeled noise exposure. Roughly 4% of Bayou Gauche is under tree cover (much lighter than most cities), and the dominant land cover is pasture / hay. Both are measured from federal USDA Forest Service and USGS satellite imagery at 30-meter resolution. Streets with 60% or higher canopy show 3 to 5 dBA lower noise than comparable streets with bare ground or pavement, which is why the per-place decay rate above already accounts for it.
Airport noise is directional. Louis Armstrong New Orleans International's approach paths concentrate aviation noise to the northeast. Neighborhoods to the southwest of downtown show no measurable contribution from the airport.
Sources & Methodology
The BestNeighborhood noise model is calibrated against nearly one million federal ground-truth measurements across four states. Road noise is computed from segment-level federal traffic data and propagated outward using physics-based acoustic decay, with attenuation rates that depend on the surrounding land cover.
All inputs are published federal datasets. Block-level noise is computed by combining road, rail, and aviation sound sources in the energy domain, the same physics used in professional environmental noise assessments. Read the full methodology.
