MMW is currently completing a hydrodemolition project on the Edgar M. Hoopes Dam near Wilmington, DE using a state-of-the-art lift to access difficult to reach areas on the face of the dam with a robotic blasting tool.
MMW Completed hydrodemolition on Mississippi river Lock and dam 17 for the Army Core of Engineers in New Boston, Illinois ahead of schedule despite windy, freezing conditions. MMW utilized overlapping shifts to prevent freezing conditions from disrupting the scheduled completion date while maintaining safe work practices and allowing the general contractor to continue peripheral work.
Midwest Mobile Waterjet recently completed a challenging hydro demolition project at a Duluth MN waste water treatment plant. Specification required concrete hydrodemolition removal depth to be determined by pH and chloride levels. All work was completed on time and within customer budget.
Midwest Mobile Waterjet has added a custom-built vacuum clean up tool for use in concrete debris removal following hydro demolition. The system is powered by a 6000 cfm vac unit in addition to a low volume 10,000 psi jet to agitate material during the vacuum cleaning process. A skid-loader or walk behind mini track excavator is used to manipulate the vacuum nozzle which reduces manpower, injuries and make the cleaning process more efficient.
Midwest Mobile Waterjet recently completed a challenging hydro-demolition project on the Brighton Dam near Baltimore Maryland. The project required hydro demolition of approximate 16,000 square feet of shotcrete, over a concrete base on the spillway of the Brighton Dam. Do to the varied thickness of the shotcrete and the softer compressive strength of the base slab this removal proved to be very challenging. However, no challenge is too great for MMW and we were able to design a system and process that satisfied the specification and was approved by the project engineers. The project also required strict waste water treatment monitoring and disposal which again MMW was able to perform admirably.
Midwest Mobile Waterjet recently completed a hydro demolition bridge project near Port St Lucie Florida. The general contractor, Lead Engineering, was looking for a solution to speed up the process of removing the bridge decks from several bridges on Interstate 95. The original process included manual chipping on top of each bridge girder then cut the deck rebar away from the girder steel reinforcing without damaging it. This proved to be a labor intensive and difficult process.
Lead Engineering project managers contacted MMW to find a better solution. MMW was able to utilize robotic hydro demolition to remove a specific depth of concrete (8.5”) and expose the deck rebar directly above each girder. A minimum of deck concrete (1 inch or less) was intentionally left in place above the girders to be removed by lightweight chipping tools. After the deck was free from the girders they were removed in large sections using a crane. The process proved to be significantly faster than the original manual method and Lead Engineering was able to finish the bridge work ahead of schedule.
Midwest Mobile Waterjet recently completed large scale deep demolition on the face of a dam deep in the woods of northern California. Lost Creek dam near La Porte, California is almost 100 years old, and needed a complete refurbishment including the extremely difficult to access, nearly completely vertical face of the dam. MMW was able to access the surface using a custom built frame, an Aqua Cutter Aqua spine and a small crane that fit the weight requirement of the aging wooden bridge that ran across the top of the dam. Rope access also had to be utilized eventually to secure the frame and spine to the face of the dam.
Midwest Mobile Waterjet recently completed a project in an 800′ tunnel running beneath the active main runway of Benny Benson State Airport in Kodiak, Alaska. The project required two very different profiles on the floor and walls, which was accomplished with a Conjet 324 that MMW modified to utilize two different tools with as little downtime as possible. MMW also provided the cleanup equipment including vac services and high pressure wash down.