Superior Concrete designs, supplies, and installs Stormwater Detention Vaults. Our ability to construct high quality, structu ... rally sound, waterproof vaults, and timely projects set us apart. As a single-source provider based in Lake Stevens, Washington, Superior Concrete handles every aspect of design, manufacturing, and installation of Stormwater Detention Vaults so your project can stay on schedule and on budget. Our employees have over 140 years of industry experience, Superior Concrete delivers top-quality solutions during every stage of the construction process. read more