- Company: Bradshaw Construction Corporation
- Industry: Water/Wastewater
- Location: Laurel, Maryland
- Expected Completion Date: April 5, 2014
- Project Website
Bradshaw Construction Installed 240 linear feet of 60 inch steel casing to house twin 20 inch ductile iron water lines under MD Route 32 and 410 linear feet of 43 inch steel casing for a 24 inch ductile iron water line under the Little Patuxent River as part of the Fort Meade Reclaimed Water Project.
What impact does this project have on America?
This project allowed Ft Meade to utilize reclaimed water for their cooling systems, rather than drinking water. This allows for a more efficient use of water and treatment capacity. In addition by tunneling under MD-32 and the Little Patuxent River, we avoided disruptions to traffic on a heavily traveled highway, as well as unnecessary disturbance to the river.
What interesting obstacles or unusual circumstances did you overcome to complete the project?
While boring under MD Route 32 it was crucial that the MTBM maintained a steady slurry pressure at the face of excavation to balance out the downward earth pressure the machine faced. Not having a proper balance could result in subsidence and cause damage to the highway. The project also included boring under Little Patuxent River with 15 feet of water head and only 10 feet below the river bed making it essential to maintain proper slurry pressure to prevent disturbing the river. The most challenging feat Bradshaw faced was installing the steel rib and liner plate launch and receive shafts. With Bradshaw’s highly skilled personnel the project went smoothly with no incidents or accidents.