WALO has been active in the heavy civil construction industry since 1917. Family owned and held in 4th generation WALO has grown from a local road building company founded in Switzerland, to a heavy civil infrastructure general contractor with 2,400 employees spread across offices and projects worldwide. Since 2016, the company has expanded into the U.S. to deliver our highly specialized and self-developed infrastructure rehabilitation solutions to the U.S. market: Ultra-High Performance Concrete Solutions, Dense Asphalt Concrete Linings-Systems, as well as Hydrodemolition and High-Pressure Waterjetting for Concrete Rehabilitation.
- Business Type:
- Engineering service provider
- Industry Type:
- Construction & Construction Materials
- Market Focus:
- Internationally (various countries)
- Year Founded:
- Over 1000
- $100,000,000 US - $1,000,000,000 US
Case Study Description
Cold Spring Construction of Akron, NY awarded WALO USA with the Hydrodemolition sub-contract for the rehabilitation of the 1.1 mile long Buffalo Skyway in Erie County, New York.
WALO was tasked with the removal of 360,000 square feet of concrete bridge deck to a depth of up to 2.5 inches during two consecutive partial closures of the structures in 2018 and 2019 in order to minimize the interruption for the traveling public.
Our experienced hydro demolition operators equipped with two of the newest state-of-the-art demolition robotics were able to finish the north-bound structure in less than six weeks, which is a great achievement in productivity and output compared to other hydrodemolition service providers.
Case Study Description
In 2018 WALO USA was awarded the sub-contract for the first machine paved Ultra-High Performance Concrete (UHPC) Overlay in Sheldon, Iowa. Cramer & Associates Inc. chose WALO as a sub-contractor for the restorative UHPC overlay project, due to our expert know-how and extensive experience with Ultra-High Performance Concrete applications. The client, Iowa Department of Transportation (DOT), who has been pioneering in UHPC applications since 2004 and already implemented UHPC as an overlay on a small bridge deck in Buchanan County in 2016. As next step in the development and adaption of UHPC for infrastructure rehabilitation, Iowa DOT decided to implement it on a primary road bridge in Sheldon, Iowa. The bridge measured 205 feet by 44 feet.
In the restorative overlay concept, a 1.75-inch thin layer of UHPC is placed on the bridge deck as a protective layer, making them waterproof and helping to save on any additional costs by sparing the expense of deck repair and full deck replacement for many decades. The 9,020 square feet UHPC overlay job was completed in less than ten workdays with our mechanized UHPC paving equipment, by our Swiss-American construction team and with support from Cramer & Associates Inc. and Ductal.
One lane of the bridge remained open for public at all times for the course of the project to minimize traffic disruption to the traveling public.