Los Angeles officials recently announced a $40 million infrastructure plan for MacArthur Park. The new initiative aims to transform how the park’s lake operates by turning rainstorm runoff into lake water. City officials hope the infrastructure upgrade will improve the park’s damaged reputation.
While the park has seen various updates over the years, this new stormwater improvement project promises to change how the MacArthur Park lake operates.
Here is everything you need to know about the upcoming renovations.
A smarter, greener lake
Right now, the MacArthur Park lake relies on the city’s drinking water supply. This new $40 million project is going to flip the script.
According to Councilmember Eunisses Hernandez, the lake will be transformed into an eco-friendly hub designed to capture, treat, and reuse local stormwater.
“It’s about transforming how we care for this space… to improve water quality, reduce pollution, and create a cleaner, healthier environment for the thousands of families who rely on this park every single day,” Hernandez said during the announcement.
The new system is designed to provide significant ecological benefits, L.A. Times explains:
- Save roughly 9 million gallons of potable water annually.
- Clean 244 acre-feet of stormwater a year.
New features for visitors

While the underground water treatment upgrades are a massive win for the environment, the city is also investing in the park’s visual and recreational appeal.
Board of Public Works Commissioner John Grant highlighted several new additions that visitors will soon be able to enjoy, including:
- A beautiful cascading water feature
- A brand-new pedestrian bridge
- More trees and lush landscaping
- Educational signage featured in both English and Spanish
When does construction start?
If you’re eager to see these changes come to life, you won’t have to wait too long. Construction is scheduled to officially begin this fall.
This investment builds upon more than $27 million that the city has already destined into improving safety measures and community programs at MacArthur Park.