CA Pavement Hum - Segment of San Mateo-Hayward Bridge (CA-92)

[@rnospotter8740]

The CA pavement hum is so nostalgic to me. Ik this might sound so weird to some people because it’s something most people don’t pay attention to or care about but I live in Reno and we don’t have this on our freeways. I visit my cousin in LA for the first time as a kid and I wonder why the road sounds this way there. I also grew up going to SF and noticed the same thing. Ofc now as an adult Ik it’s just the groves in the road that produce this magnitude of sound, but this noise just reminds me of big cities and that Cali feeling 😭😭

[@freewayelliott8083]

They did silence the subtle pavement at one point during a repaving project back in 2015. Though some of the sections are partially silenced because of it. The repavement expoxy for the deck eventually wore off and probably now produces this sound, although older videos suggested this sound existed before the repavement job. I did take a ride across it and the subtle pavement is still there, despite the pavement markings refinished (yet again).

[@zacharyyamashita8554]

Let’s pray Caltrans doesn’t entirely resurface this section with Polyester Concrete overlay.

[@JRE2540]

I bet at this part of the bridge, the California Department of Transportation is going to repave it to polymer concrete again.

[@eloc08]

I have an idea for you: Nevada Pavement Hum if you drive through the Hoover Dam bridge

[@art_of_the_road]

The sound wasn’t nearly as prominent as I’d expected. I think the tining is randomized so it produces less of an ‘even’ noise, more just a typical grinding whisper. But I’ll recheck next time I’m in the area.

[@mashleymorgan]

It’s called Mike O'Callaghan-Pat Tillman Memorial Bridge if you are talking about the one on I-11.

[@mashleymorgan]

On a Google Maps street view, it looks like it might sound like that concrete section near State College, Pennsylvania on I-99.

[@eloc08]

@@mashleymorgan So it would sound more like the buzzing sound from that other freeway.