Water/Wastewater

Case Study: Emergency Wastewater Treatment Plant Sewer Main

Emergency Wastewater project pic_Water_main,_Moreton,_Wirral_-_IMG_0806

This $1.2 million project included planning, design, and construction administration for emergency repair and relocation of a 48-inch diameter sewer main within the existing sewer treatment plant. After discovering a large sinkhole within feet of existing sewage digesters and other critical infrastructure, initial stabilization recommendations were made, followed by contingency plans for bypass of the compromised area. Upon design and installation of the primary gravity bypass main, video analysis revealed further potential pipe failure locations. Recommendations were made for extension of the bypass main up to the raw sewage pumps on the front side of the process area of the plant. Construction administration services included project observation, as-built survey of the installed pipe elements, design of modified sewer manholes with piling over the failing main, and pay request and recommendations to the owner.

Other Sample Projects:

Riverview Treatment Plant Watermain Improvements

Riverview Treatment Plant Watermain Improvements

Services performed on this $500,000 project included environmental, surveying, civil engineering, construction staking, resident inspection, and construction administration. The project scope required replacement of the 24-inch diameter water mains within the floodplain and within state highway right-of-way. The project was designed and constructed according to State Revolving Loan fund requirements. The project access was difficult…

Lift Station 21 Interceptor

Lift Station 21 Interceptor

This interceptor sewer replacement project was located in an existing residential area of the City of Tuscaloosa located from the intersection of 27th Street and Fosters Ferry Road to 29th Street just east of 40th Avenue. The existing system consisted of clay mains and brick manholes that had exceeded their service life and had significant…

COSA Pearsall Road Landfill

COSA Pearsall Road Landfill

TTL collected various surface water samples from Leon Creek for the City of San Antonio (COSA). The creek is located near a former landfill. The Leon Creek watershed is located in northern Bexar County and is an urbanizing watershed with on-going development occurring in currently forested and low-density urban areas. TTL’s services aided COSA in…

Valdosta Wastewater Treatment Plant

Valdosta Wastewater Treatment Plant

TTL performed construction materials testing services for this $100 million project including periodic and continuous inspection during soils (site grading) work, monitoring of concrete placements, curing operations and sampling of fresh concrete. The completed project included the relocation of the plant to higher ground and the construction of a new force main, which were intended…