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New sewer infrastructure to accommodate Delta population growth

The city says that the existing sanitary main along 16 Avenue has reached its maximum available flow capacity
The new sanitary main alignment along 16 avenue is within a known archaeological site, so construction may progress at a slower rate. Delta Optimist file

Get ready for more traffic delays due to a sanitary sewer replacement to take place in Tsawwassen that will commence this spring, once a contractor is selected.

The City of Delta plans to replace the sanitary main along 16 Avenue from 56 Street to Gillespie Road. The new sewer main has been designed for a 75-year service life and is sized to accommodate future growth in Tsawwassen, according to the city.

The city is currently in the tendering stage and hopes to have the project completed this summer.

Single-lane alternating traffic will be maintained during construction hours, while two-way traffic will be maintained outside regular construction hours.

Meanwhile, the city is also planning to have a new sewer project along 56 Street from 16 to 12 avenues in Tsawwassen, followed by a second phase along 56 Street from 12 to 8A avenues.

The contract for the first phase is to be awarded in the summer of 2024. Construction is to start by this summer or fall with a completion in late 2024. Construction of the second phase is to start in the spring of 2026 with completion later that summer.

Among the other projects is a new sanitary sewer forcemain planned for Ladner, along Ladner Trunk Road from Elliott to 55B streets. Construction is to start in the spring of 2025 with completion by that summer.

The city notes that some of the notable challenges with that project include high volumes of traffic on Ladner Trunk Road, working around a shopping mall and elementary school, traffic management and control for all works adjacent to the Elliott Street and Ladner Trunk Road intersection, as well as coordination with Coast Mountain Bus Company regarding bus routes closures and detours.

The city also recently issued a request for proposals for an engineering consultant to come up with the pre-design, detailed design, tender and construction administration and inspection for upgrading a stretch of sanitary sewer main that will serve new development in Ladner.

The approximately 400 metres of new sanitary sewer main will be along 53 Street, from 48A Avenue to Linden Drive.

According to the city, the existing asbestos cement sanitary main along the street was built in 1969 and will be upgraded to accommodate planned high-density in the area.

Crews in another ongoing project, meantime, have been installing the final section of a new sanitary forcemain at the Ladner Trunk Road and Elliott Street intersection. The existing sanitary sewer main along Arthur Drive and Elliott Street was installed in 1963 and is at the end of its service life, the city notes, adding that a new sewer main has been designed for a 75-year service life and is sized to accommodate future growth in Ladner Village.