Noise Levels in Bayou Sale, LA | Find Quiet Neighborhoods With Our Sound Map
57 dBA
Average noise across Bayou Sale
Normal conversation an arm’s length away
79
Residents above the EPA 55 dBA threshold
29% of Bayou Sale residents
76 dBA
Loudest residential point
City bus interior
This map shows modeled outdoor noise across Bayou Sale 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 79 Bayou Sale residents, or 29.2%, live above that level. By land area, 16.2% of Bayou Sale is above 55 dBA.
Average noise levels for Bayou Sale residents, grouped by direction from the center of Bayou Sale. Central Bayou Sale carries the highest population-weighted average; Southern Bayou Sale carries the lowest. Just 1% of residents in Southern Bayou Sale live in blocks above the EPA's 55 dBA threshold, a fifth of the share in Central Bayou Sale.
Central Bayou Sale
62.7 dBA · Loud
Busy restaurant
36% of people above 55 dBA
QuietLoud
Eastern Bayou Sale
58.2 dBA · Loud
Normal conversation an arm’s length away
36% of people above 55 dBA
QuietLoud
Southern Bayou Sale
36.0 dBA · Quiet
Soft rainfall
1% of people above 55 dBA
QuietLoud
Central Bayou Sale sounds about 536% louder than Southern Bayou Sale to the human ear, a 26.7 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 US-90 do you need to be?
US-90 produces an estimated 73 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
73 dBA
City bus interior
165 ft
58 dBA
Normal conversation an arm’s length away
330 ft
49 dBA
Quiet office
660 ft
40 dBA
Soft rainfall
¼ mile
35 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 8% of Bayou Sale sits under tree canopy (lighter than most cities) and roughly 0% 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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Rail Noise
Active freight rail runs through parts of Bayou Sale. For most blocks the rail-only contribution is small. Combined road-plus-rail noise rarely exceeds road noise on its own. The exceptions are the handful of blocks within roughly a quarter mile of the right-of-way during pass-through hours.
Use the Rail toggle on the map above to isolate rail's contribution from road and aviation.
How Noise Is Distributed Across Bayou Sale
The bar chart below shows the share of Bayou Sale residents in each noise band. About 20% of residents live below the EPA's 55 dBA threshold, and roughly 75% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Bayou Sale Compares
Bayou Sale sits the highest among the peer group. Below: how Bayou Sale's average outdoor noise and share of residents above the EPA threshold compare with Glencoe, Richohoc, Idlewild, and Elm Hall.
Average noise level (dBA)
Bayou Sale's 57.1 dBA pop-weighted average is the highest 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 Sale because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 29.2% of Bayou Sale residents live in blocks where outdoor levels exceed the EPA's 55 dBA threshold. That's more than any of its peer group. Measured by land area instead, 16.2% of Bayou Sale'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 Sale
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 US-90 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 8% of Bayou Sale is under tree cover (lighter than most cities), and the dominant land cover is cultivated cropland. 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.
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.
