Progress Update, Week of July 10th, 2023 During the week of July 10, the Gowanus Remediation Team (GRT) continued the RTA 1 Capping Operation. Capping material was placed between Union Street and 3rd Street. Photos of construction activities are provided below. Capping material placement at the Union Street Bridge. Continued capping material placement at the Union Street Bridge. Capping material placement in progress south of Carroll Street.