First Coast Expressway (SR23) Sound Wall First Coast Expressway (SR23) Sound Wall Clay County, FL Install Auger Pile & Precast Sound Wall Posts Geotechnical Foundation Systems 2020-06-03T16:57:33+00:00 Clay County, FL Install Auger Pile & Precast Sound Wall Posts https://geotechpiles.com/testimonials/first-coast-expressway-sr23-sound-wall/ Share This Location FacebookXLinkedInWhatsAppTumblrPinterestEmail