NPS Castillo de San Marcos Seawall

Castillo de San Marcos National Monument was originally built by the Spanish between 1672 and 1695 to defend Florida and the Atlantic trade route. It is the oldest masonry fortification in the continental United States. CROFT led a multidisciplinary design team to provide full AE design for the historic rehabilitation of five historic masonry seawalls, renovated entrance plaza and fee station, ABAAS accessible walkways, utility upgrades, and landscape restoration at the Castillo de San Marcos National Monument in

St. Augustine, Florida. NPS is implementing this project to raise and rehabilitate the failing seawall at the park to protect and preserve the park’s natural and cultural resources, and improve safety, flood protection, stormwater management, and resiliency for the city of St. Augustine and the St. Augustine Town Plan Historic District. The project scope also included a drainage assessment and redesigned stormwater piping adjacent to the historic gates of the City of St. Augustine to prevent negative impacts from heavy rain events and storms. Coastal/marine engineering, hurricane and sea-level rise hydrological analysis, metocean analysis, bathymetric/topographic survey, LIDAR 3D BIM modeling, multijurisdictional coastal permitting, NEPA and NHPA compliance, upland and in-water archelogy investigations, geotechnical exploration, value analysis, and construction cost estimating was also included in the project.