CONSTRUCTION & REHABILITATION
Every Dam & Levee system is unique and individual. The components that make up each system, the temporary structures required for construction and the construction means and methods applied can all vary greatly on these types of complicated civil works projects depending on location, scope, scale, goal and intent.
Because each dam works differently and will have its own unique issues - experience, flexibility and creatively are required on every job. The skills and knowledge obtained by working on so many dam projects, provides us with the necessary experience to ensure the project will be built correctly and safely, meeting the design goals of all involved – owner, design professionals and regulatory agencies.
Roller Compacted Concrete (RCC) is essentially a very low slump concrete placed with conventional paving or earthmoving equipment and compacted with steel drum rollers. The major benefits of RCC are speed of construction, durability, low maintenance, low cost, and sustainability. Typical applications include ports and intermodal facilities, military installations, light and heavy industrial facilities, roadways and shoulders, and dams.
KC is outfitted with our very own RCC plant which comes with extremely skilled crews that have placed over 100,000 CYs of material. Most applications have been associated to dam structures in various applications (spillways, embankments, and overtopping projection). We are further capable of assisting with the development of mix designs to help meet the goals of the project.
Control and diversion of water during construction is probably the most critical component of dam construction as well as the most variable. Maintaining the integrity of the dam structure and water quality during construction is paramount. It can literally make or break an inexperienced contractor. This is where KC’s experience puts us above the competition. We fully understand the importance of evaluating all the contributing factors and developing an excavation and control of water plan as we evaluate and bid a new job. The major component of these plans being the temporary structures: cofferdams (see cofferdams), sheet piles, pile and lagging, soil nailing and shotcrete, slide rail system, deep wells, well point systems. KC has extensive experience with all of these systems and variations thereof. The real value is knowing how, where, why and when to employ each of these systems to construct the job as safely and economically as possible.
Articulated Concrete Blocks (ACBs) are simply precast concrete blocks laced together by steel or nylon cables that provide a flexible application to existing landscapes and act as an armoring or erosion countermeasure. The matrix of blocks installed together with aggregate subbase and select fill layers form an erosion-resistant system with specific hydraulic performance characteristics. Typical applications include streambanks, shorelines and dams (spillway aprons, ford crossings, embankment overtopping protection).
KC is one of the most experienced ACB installers in the region having installed over 1,500,000 SF on a number of different projects in a variety of applications.
Primarily these structures are created to either control storm water or collect drinking water for the purpose of distribution. Depending on the application, these systems will be comprised of different components such as: length, width, height and material composition of embankments; size, shape, materials and configuration of spillways (Ogee, Labyrinth, Drop or Stepped, Channel, Flume, Chute, Siphon, Fuse Gates); intake and outfall structures; overtopping protection systems; seepage and uplift collection drains; gates, valves and other conveyance piping; downstream protection and stabilization; monitoring instrumentation.