On Monday, October 5, 2026, crews start excavating Agoura Road between Lindero Canyon Road and Lakeview Canyon Road. The work includes removing asphalt, laying pipeline and installing underground equipment, during the day and at night, for the next four to six months. Counting from tomorrow, the cones stay up until sometime between February and April 2027.
The original plan was harder on drivers. It also isn't the last dig. The City of Westlake Village spent about a year bargaining this phase down, and the same pipeline network runs next along Lindero Canyon Road, across the Lindero Channel and up the Westlake Vista Trail. If you know how this phase was shaped, you have a fair idea of how the next ones will go.
What starts Monday
The Las Virgenes-Triunfo Joint Powers Authority runs the work. Its weekly notice describes "extensive traffic control, staging equipment, and construction activities taking place in the roadway," with temporary lane closures, lane shifts, turn restrictions and delays in the active work area. The same notice calls the job "urgent pipeline repair and installation." Neither that notice nor any of the earlier bulletins says why it's urgent.
The week of September 28 was quiet, with no pipeline work or construction lane closures on Agoura Road. So this weekend is the last normal traffic you'll see on that stretch until spring.
The plan that got trimmed
The first public version came from the Las Virgenes Municipal Water District, or LVMWD. It called for closing both westbound lanes of Agoura Road to most traffic. Local traffic could still reach neighborhoods and businesses, everyone else would detour via Lakeview Canyon Road, Townsgate Road and Village Glen, and the eastbound lanes would stay open. That page is still online, undated, and it still describes that layout.
City Manager Rob de Geus's note in the City's August 2026 newsletter describes something different:
"Instead of closing westbound Agoura Road entirely, one westbound lane will remain open during construction. This is a major improvement from the original plan, which would have closed westbound Agoura Road for up to six weeks."
He wrote that the City Council and staff had spent the past year working with the LVMWD team to cut traffic and roadway disruption. He also thanked the district for its "willingness to incorporating City's concerns into the final plans." So if you're heading west on Agoura Road this fall, plan for one open lane, not a detour. The detour map on the older LVMWD page shows a plan that has since been replaced.
One feature of the original plan isn't contradicted anywhere. LVMWD said a dedicated bike lane would stay open for the whole job and would double as an emergency-vehicle lane when needed. The City's newsletter doesn't mention bikes either way.
Why the start slid from August to October
The City's newsletter said the project was "beginning this month" in August, and LVMWD's page said the first Westlake Village phase would begin in August and wrap up in February 2027. In practice, August and September went to potholing. That means small test holes to find existing utilities before anyone trenches. The weekly bulletins show the excavation target moving back week by week:
- Week of August 17. Potholing between Lindero Canyon and Lakeview, 9 a.m. to 4 p.m. daily. It had started the week of August 10 and was expected to take four to six weeks, with no full roadway closure planned.
- Week of August 24. Potholing "since late July," expected to run one to two more weeks before excavation started.
- Week of August 31. Billed as the final potholing week, through Friday, September 4, with pipe work forecast for mid-September.
- Week of September 7. Potholing done September 4, followed by a "brief pause." No reason given.
- Week of September 14. Potholing now listed as done September 11. Excavation pushed to as early as the end of the month.
- Week of September 21. Potholing listed as done "as scheduled" on September 18.
That's three different finish dates for the same potholing in three weeks of notices. None of them explains the change. The bulletins tell you which week the crews plan to show up, but they don't firmly predict the week after. The JPA says so itself: its notices carry a line that the schedule "is subject to change due to weather, field conditions, and other factors."
The intersection has a recent history. City staff reported a water main break at Lindero Canyon Road and Agoura Road on May 5, 2026. No published source links that break to the "urgent" label on this fall's work.
Who's on the other side of the cones
The work zone runs right past the Westlake Village Inn at 31943 Agoura Road. Its restaurants and venues are Stonehaus, Club Louie's and Mediterraneo, plus the event and wedding spaces. Westlake Golf Course sits at 4812 Lakeview Canyon Road, with its entrance at Lakeview Canyon and Townsgate. Its directions from the northbound 101 send drivers along Lindero Canyon Road, then Agoura Road, then Lakeview Canyon Road, straight through this segment.
That route is why the one-lane deal matters for an ordinary evening. Under the original plan, a westbound drive from Lindero to dinner at the Inn or a tee time at the course would have meant local-access lanes and a detour. Under the plan the City negotiated, it's a slower drive on the same road.
The water district says it has tools for businesses that may be affected. They include signage and wayfinding, parking solutions, keeping pedestrian access open, and marketing help. No published source names which businesses have used them.
The Sunday farmers market is listed at 2797 Agoura Road. None of the construction notices mentions it, and none places that address inside the Lindero-to-Lakeview segment.
What the pipes are for
The water starts at the Tapia Water Reclamation Facility. Surplus recycled water there has already been filtered and disinfected. The new pipes carry it to an Advanced Water Purification Facility at 30800 Agoura Road, just over the line in Agoura Hills. There it goes through membrane filtration, reverse osmosis, and ultraviolet light with advanced oxidation. The purified water then flows to Las Virgenes Reservoir to blend with imported water, and gets treated a final time at the Westlake Filtration Plant. The City's staff report says the project will also effectively end discharges into Malibu Creek.
Ground was ceremonially broken on April 10 on the 7-acre plant site, The Acorn reported. LVMWD board vice president Jay Lewitt told the paper the region had been "100% (dependent) on imported water through the State Water Project" and that the plant would reduce that dependence by about 30%. Agoura Hills Mayor Jeremy Wolf added that every drop of water in Agoura Hills, Hidden Hills, Westlake Village and Calabasas "traveled 400 miles to get here," and that 70% of it goes to outdoor irrigation.
The Acorn reports two cost figures, and they measure different things. The full effort is $466 million. The 35,700-square-foot facility itself is estimated at $304 million. Sources also differ on timing. The Acorn put the plant's operation at 2030, while the project's construction page lists overall completion in 2029. Either way, the Agoura Road segment is a small piece of a project with years left to run. When it's finished, about 14 miles of new pipeline will connect to the plant.
The next dig is already designed around Lindero
A City staff report prepared by City Engineer Roxanne Hughes, following the April 20, 2026 Environmental Committee meeting, lays out what follows this phase. Design is finished for the Agoura Road lines west of Lindero Canyon Road, which is the work starting tomorrow. The remaining waterlines were at about 30% design, with installation starting in 2027:
- Agoura Road lines east to the Agoura Hills city limit
- Lindero Canyon Road lines from Agoura Road up to Triunfo Canyon Road
The same report covers two more pieces without giving a design stage or a year for either: four pipes crossing the Lindero Channel, and a pipeline along the Westlake Vista Trail.
The channel crossing shows the same kind of negotiation as the westbound lane. City staff and the Council had asked the project team to bury the pipes or build them into the Lindero bridge so they wouldn't be visible. The engineering review found the bridge can't structurally carry more pipelines, and fitting them in would mean replacing the whole bridge and closing it for potentially up to two years. Tunneling was ruled out because of shallow bedrock. The Environmental Committee, Councilmembers Honig and Davis, backed running all four pipes over the channel south of the bridge, colored to match the channel. More screening could be added later if needed, which the committee considered unlikely.
No source gives exact dates or an order for any of these segments. Nothing published so far says whether the Westlake Vista Trail will close during its pipeline work.
Lindero Canyon is already busy for a separate reason. The City's fiber project report of September 30 put conduit installation at about 85% done, with roughly 2,800 feet of micro-trenching left on Triunfo Canyon and Lindero Canyon roads. Pavement restoration comes next, and fiber placement is scheduled for October through December. For the rest of 2026, the Agoura and Lindero intersection sits between two active projects.
Keeping current
The JPA posts a new notice each week at ourpureh2o.com, with an email sign-up for Westlake Village updates. The project outreach team answers questions at (818) 245-4440. If you want to see what the pipes will carry, the Pure Water Demonstration Facility at LVMWD headquarters, 4232 Las Virgenes Road in Calabasas, offers tours that take about an hour and end with a taste test. Tours usually run Thursdays between 9 a.m. and 2 p.m. and can be requested through LVMWD.
If you're planning to list near Agoura Road or Lindero Canyon this winter, timing showings around lane closures and contractor access is part of the prep. Nico Torres tracks these weekly notices for his clients and can help you schedule photography, open houses and buyer visits around the construction calendar. Work with Nico.
