Noise Levels in Rock Creek Lexington Road, Louisville, KY | Find Quiet Neighborhoods With Our Sound Map
55 dBA
Average noise across Rock Creek Lexington Road
Quiet office to normal conversation
1,534
Residents above the EPA 55 dBA threshold
43% of Rock Creek Lexington Road residents
79 dBA
Loudest residential point
City bus interior
This map shows modeled outdoor noise across Rock Creek Lexington Road 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 1,534 Rock Creek Lexington Road residents, or 42.8%, live above that level. By land area, 44.4% of Rock Creek Lexington Road is above 55 dBA.
55.6% below 55 dBA
44.4% above 55 dBA
See how noise in Rock Creek Lexington Road compares to similar-sized neighborhoods.
Noise by Part of Rock Creek Lexington Road
Average noise levels for Rock Creek Lexington Road residents, grouped by direction from the center of Rock Creek Lexington Road. Northern Rock Creek Lexington Road carries the highest population-weighted average; Central Rock Creek Lexington Road carries the lowest. Just 31% of residents in Central Rock Creek Lexington Road live in blocks above the EPA's 55 dBA threshold, about two-thirds of the share in Northern Rock Creek Lexington Road.
Central Rock Creek Lexington Road
53.2 dBA · Moderate-loud
Quiet office to normal conversation
Eastern Rock Creek Lexington Road
54.2 dBA · Moderate-loud
Quiet office to normal conversation
Northern Rock Creek Lexington Road
58.8 dBA · Loud
Normal conversation an arm’s length away
Southern Rock Creek Lexington Road
58.6 dBA · Loud
Normal conversation an arm’s length away
Western Rock Creek Lexington Road
54.4 dBA · Moderate-loud
Quiet office to normal conversation
Northern Rock Creek Lexington Road sounds about 47% louder than Central Rock Creek Lexington Road to the human ear, a 5.6 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 I-65 do you need to be?
I-65 produces an estimated 71 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
71 dBA
Highway traffic 50 ft away
165 ft
57 dBA
Normal conversation an arm’s length away
330 ft
49 dBA
Quiet office
660 ft
41 dBA
Quiet suburban street at night
¼ mile
35 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 26% of Rock Creek Lexington Road sits under tree canopy (heavier than most neighborhoods) and roughly 33% 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 Rock Creek Lexington Road. 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
Louisville Muhammad Ali International (SDF) sits southwest of Rock Creek Lexington Road. 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 50 dBA on the map's Overall layer. Blocks on the opposite side of Rock Creek Lexington Road, particularly to the northeast, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Rock Creek Lexington Road
The bar chart below shows the share of Rock Creek Lexington Road residents in each noise band. About 64% of residents live below the EPA's 55 dBA threshold, and roughly 9% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Rock Creek Lexington Road Compares
Rock Creek Lexington Road sits at the quieter end of the spectrum. Below: how Rock Creek Lexington Road's average outdoor noise and share of residents above the EPA threshold compare with Bowman, Clifton, Cherokee Triangle, and Highlands Douglass.
Average noise level (dBA)
Rock Creek Lexington Road's 54.7 dBA pop-weighted average is at the quieter end of the spectrum. Kentucky as a whole averages 50.5 dBA and the U.S. averages 52.0 dBA. Both are lower than Rock Creek Lexington Road because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 42.8% of Rock Creek Lexington Road 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, 44.4% of Rock Creek Lexington Road's footprint sits above 55 dBA, against a Kentucky average of 23.2% and a national average of 28.1%.
What This Means if You're Moving to Rock Creek Lexington Road
- 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 I-65 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 26% of Rock Creek Lexington Road is under tree cover (heavier than most neighborhoods), 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. Louisville Muhammad Ali International's approach paths concentrate aviation noise to the southwest. Neighborhoods to the northeast of downtown show no measurable contribution from the airport.
