As Alexandria’s Combined Sewer Overflow (CSO) project RiverRenew starts making progress, it’s looking increasingly likely the project’s cost will approach the half-billion dollar mark.

During an update at the City Council meeting on Dec. 10 (Monday), Mayor Justin Wilson said the price will be towards the upper end of the $370 to $555 million price range.

“We’ve been able to refine the pricing… the numbers do not ever get smaller, they get bigger,” Wilson said. “The current estimate is around $464 million. Those numbers have gone up.”

The massive infrastructure project — the largest in the city’s history — was an unfunded mandate from the state legislature. The state will require Alexandria to completely overhaul its centuries-outdated sewer system by July 1, 2025, to prevent sewage from flowing into the Potomac River during rainstorms.

The good news, for Alexandria, is that since the initial mandate the state has started putting some funding into the project. The General Assembly adopted a budget earlier this year that included $25 million for the project. This year, Wilson said the city government is back requesting $75 million more.

“We will hear in a couple of weeks whether there’s money in the governor’s budget,” Wilson said.

Meanwhile, Wilson said three design-build teams have been shortlisted for the project, and will have to submit proposals for the project by Feb. 11. From there, Wilson said it will be a pretty quiet year in terms of news on the project as Alexandria Renew Enterprises chooses who is awarded the contract. The goal, Wilson said, is to have a design selected by December 2020.

“We still have a substantial amount of work to do,” Wilson said, “[but we’ve] made a lot of progress.”

Photo via Alexandria Renew Enterprises/Facebook