Perfect for communications, electrical, gas or steam systems, precast concrete utility structures protect the vital connections and controls for utility distribution. Precast concrete is nontoxic and environmentally safe. It resists buoyancy, making it an ideal material for use in all underground applications. If this sounds like the option you are looking for, contact NCI today. Norwalk Concrete Industries offers a wide variety of sized utility vaults and other structures; which they can also make custom to your order.