This map shows modeled outdoor noise across Massanetta Springs 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.
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 975 Massanetta Springs residents, or 17.5%, live above that level. By land area, 22.9% of Massanetta Springs is above 55 dBA.
See how noise in Massanetta Springs compares to similar-sized cities.
Noise by Part of Massanetta Springs
Average noise levels for Massanetta Springs residents, grouped by direction from the center of Massanetta Springs. The highest population-weighted average is in northwestern Massanetta Springs; the lowest is in northeastern Massanetta Springs, where just 10% of residents live in blocks above the EPA's 55 dBA threshold, about half the share in the loudest section.
Northwestern Massanetta Springs
21% of people above 55 dBA
Western Massanetta Springs
21% of people above 55 dBA
Southwestern Massanetta Springs
16% of people above 55 dBA
Eastern Massanetta Springs
12% of people above 55 dBA
Northeastern Massanetta Springs
10% of people above 55 dBA
To the human ear, noise in northwestern Massanetta Springs sounds about 36% louder than in northeastern Massanetta Springs, a 4.4 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 do you need to be?
produces an estimated 68 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.
Calculated from the model's calibrated attenuation formula. About 24% of Massanetta Springs sits under tree canopy (about average for 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.