Noise Levels in Washington Terrace, UT | Find Quiet Neighborhoods With Our Sound Map
53 dBA
Average noise across Washington Terrace
Quiet office to normal conversation
2,858
Residents above the EPA 55 dBA threshold
31% of Washington Terrace residents
78 dBA
Loudest residential point
City bus interior
This map shows modeled outdoor noise across Washington Terrace 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 2,858 Washington Terrace residents, or 31.3%, live above that level. By land area, 38.7% of Washington Terrace is above 55 dBA.
Average noise levels for Washington Terrace residents, grouped by direction from the center of Washington Terrace. Northern Washington Terrace carries the highest population-weighted average; Central Washington Terrace carries the lowest. Just 10% of residents in Central Washington Terrace live in blocks above the EPA's 55 dBA threshold, a fifth of the share in Northern Washington Terrace.
Central Washington Terrace
50.7 dBA · Moderate
Quiet office
10% of people above 55 dBA
QuietLoud
Eastern Washington Terrace
53.7 dBA · Moderate-loud
Quiet office to normal conversation
36% of people above 55 dBA
QuietLoud
Northern Washington Terrace
55.6 dBA · Moderate-loud
Quiet office to normal conversation
53% of people above 55 dBA
QuietLoud
Southern Washington Terrace
52.9 dBA · Moderate
Quiet office to normal conversation
31% of people above 55 dBA
QuietLoud
Western Washington Terrace
53.9 dBA · Moderate-loud
Quiet office to normal conversation
25% of people above 55 dBA
QuietLoud
Northern Washington Terrace sounds about 40% louder than Central Washington Terrace to the human ear, a 4.9 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 300 W do you need to be?
300 W produces an estimated 63 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
63 dBA
Busy restaurant
165 ft
51 dBA
Quiet office
330 ft
43 dBA
Quiet suburban street at night
660 ft
36 dBA
Soft rainfall
¼ mile
35 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 7% of Washington Terrace sits under tree canopy (lighter than most cities) and roughly 44% 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 Washington Terrace. 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.
Airport Noise
Salt Lake City International (SLC) sits south of Washington Terrace. The U.S. Department of Transportation measures aviation noise around this airport directly, 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 45 dBA on the map's Overall layer. Blocks on the opposite side of Washington Terrace, particularly to the north, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Washington Terrace
The bar chart below shows the share of Washington Terrace residents in each noise band. About 70% of residents live below the EPA's 55 dBA threshold, and roughly 4% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Washington Terrace Compares
Washington Terrace sits at the louder end of the spectrum. Below: how Washington Terrace's average outdoor noise and share of residents above the EPA threshold compare with Hooper, South Weber, Riverdale, and West Point.
Average noise level (dBA)
Washington Terrace's 53.3 dBA pop-weighted average is at the louder end of the spectrum. Utah as a whole averages 53.1 dBA and the U.S. averages 52.0 dBA. Both are lower than Washington Terrace because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 31.3% of Washington Terrace residents live in blocks where outdoor levels exceed the EPA's 55 dBA threshold. That's in the middle of its peer group. Measured by land area instead, 38.7% of Washington Terrace's footprint sits above 55 dBA, against a Utah average of 25.8% and a national average of 28.1%.
What This Means if You're Moving to Washington Terrace
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 300 W 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 7% of Washington Terrace is under tree cover (lighter than most cities), and the dominant land cover is low-intensity developed land. 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. Salt Lake City International's approach paths concentrate aviation noise to the south. Neighborhoods to the north 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.
