This is key information. If this is a regular route and you also have used WD-40 in the past, these can contribute to bearing wear. I'm not saying you should avoid the beach road. I ride places like that all the time. It's just that you have to be aware that you will be exposing your bearings to more potential wear and should be monitoring. If you have used WD-40 in the past on the BB area, you may have helped to clean out the grease on those bearings. WD-40 is a solvent with a small amount of lubricant. It makes a great product for loosening stuff that is stiff or stuck but the lube portion is minute and goes away rather quickly. You might try to see if you can get some spray lithium grease to work its way into the BB.