If you walk the Res on a normal week, you already know the rhythm. Park by 7, one loop on Lakeside, coffee after. That rhythm is being interrupted this summer, and not in the way most people think. The trail is open. The hours are actually longer than they've been all year. What has changed is that the paved loop is now sharing space with a crane barge, a scaffolded tower, and traffic flaggers, all at once, and it will stay that way through fall.
The short version: Lafayette Reservoir is EBMUD property, and current activity reflects both the Tower Safety Upgrade and the ongoing Wastewater Collection System Improvements project, with both projects active simultaneously through fall 2026 — anticipated to be the peak construction footprint at Lafayette Reservoir. That single fact reshapes how a Lafayette resident should think about the summer loop.
Two Loops, Not One
The Res has always offered a choice. The Lakeside Nature Trail is paved and 2.7 miles, and the Rim Trail is unpaved and 4.7 miles, with connector trails bringing the total to over 10 miles. In a normal July, most residents pick Lakeside on autopilot. This summer, that default is worth questioning, because the two trails are being affected very differently.
Lakeside is the working corridor. Visitors should expect significant construction noise and active crews near the Lakeside Nature Trail and barge ramp area, with crews consistently moving equipment and off-hauling debris across the trail to reach the barge ramp located near the performance stage, and traffic flaggers stationed at both the main entrance gate and along the trail. Park visitors can expect occasional brief delays of approximately 10 to 15 minutes for both pedestrians on the trail and vehicles entering or exiting the park.
Rim Trail is untouched by any of this. It is also, in July, a completely different animal. The 4.7-mile Rim loop is moderate with about 1,160 feet of elevation change, on dirt fire roads with almost total sun exposure. The Bay Area Hiker guide is blunt about summer: expect to sweat on Rim Trail in the summer.
So the thesis for the season is simple. Lakeside is your social loop with tradeoffs. Rim is your quiet loop with a heat cost. The right answer depends less on which trail you prefer and more on which hour you show up.
The Hours Are Doing More Work Than You Think
Most residents know the park hours shift by month, but few use the summer schedule the way it's designed. In June and July the park is open 6:00 AM to 9:00 PM, and in August 6:00 AM to 8:30 PM. That is a fifteen-hour window, and this year it splits cleanly into three modes.
| Window | Best For | Why This Summer |
|---|---|---|
| 6:00–8:30 AM | Lakeside loop, families, dog walkers | Crews arriving; noise still low; cool enough for Rim if you want it |
| 10:00 AM–4:00 PM | Skip if you can | Peak construction, peak sun, flagging delays most likely |
| 6:00–9:00 PM | Lakeside again, picnics, slower pace | Crews gone; light lingers; barge is quiet |
The evening window is the underused one. Historically the Res closed too early to make a 7 PM walk feel unhurried. This year it doesn't. If your kids' summer schedule has pushed your usual morning walk sideways, the post-dinner Lakeside loop is genuinely available, and the water is calmer without a working crane on it.
The Paseo Grande Question
Every long-time Lafayette resident eventually learns about the back way in. From downtown, take Moraga Road south, right on Campolindo Drive, and right onto Paseo Grande, where the cul-de-sac gives you side-of-the-road parking and a footpath into the Res, sidestepping the main lot fee entirely. Parking at the main entrance is $7 per day or $1 per half hour with a two-hour maximum, and annual passes are $140, or $90 for disabled or senior residents age 62 and up.
The Paseo Grande entry is more useful than ever this summer for one reason and less useful for another.
More useful: it drops you onto Lakeside past the main-gate flagging point, so you skip the entry queue on weekday mornings when crew trucks are pulling in.
Less useful: it puts you closer to the barge ramp area near the performance stage, which is exactly where debris is being off-hauled across the trail. If you value quiet, come in the front way, walk clockwise, and turn back before the ramp rather than pushing through it.
What Isn't Changing
A lot of what makes the Res the Res is still fully in place. The recreation area remains open for bicyclists, roller skates, roller blades, and scooters on the paved Lakeside Trail and roads, and 35 picnic sites surround the reservoir to accommodate families and small groups. Wheeled use on Lakeside is allowed Tuesday and Thursday afternoons and Sunday mornings until noon. Trout stocking continues on its usual schedule, dogs are welcome on six-foot leashes, and the children's play area near the East Lawn is unaffected.
The visual change is what's new. The crane barge will be the primary platform for demolition activity through the summer, with scaffolding and work platforms fully surrounding the upper tower structure. If you have watched the outlet tower from the same bench for fifteen years, it will look different this July than any July you remember. Worth mentioning to the out-of-town relatives before they ask.
Building A Summer Around The Res Instead Of Just Through It
The Res is not the only thing happening in Lafayette this summer, and the schedule pairs better than usual with a walk. A few anchors residents are already working into their weeks:
- Contra Costa Vintage Market, second Sundays, in the parking lots at 3583 Mt. Diablo Blvd. between Zahra Boutique and BMO Bank. A morning Rim loop, then a slow browse downtown, then lunch is a solid Sunday routine.
- Rock The Plaza has wrapped for 2026. The June concert dates were the 5th with Jimbo Scott & Yesterday's Biscuits, the 12th with The Kyle Athayde Dance Party, and the 26th with Lamorinda Idol Finalists. If you missed them, the Chamber positions the series as a lead-in to the Art & Wine Festival, which is worth planning around now.
- Joybound Community Movie Nights run in Walnut Creek through August with a suggested $5–$10 donation, dog-friendly, family screenings. Not in Lafayette proper, but a fifteen-minute drive if the Res evening walk needs a next stop.
- Lafayette Art & Wine Festival, September 19 and 20. The Chamber's signature event is one of the largest weekend events in Contra Costa County, drawing over 65,000 visitors across the two days. Think of the summer walking routine as the training for the festival weekend, not a separate thing.
- Res Run For Education, Sunday, October 18. The Reservoir Challenge virtual race runs October 10 to 17, since the Reservoir is closed on the 18th for the 10K runners. If you're still walking Lakeside four mornings a week in September, you are already trained for the 5K.
The through-line: the Res is currently the noisiest it will be in a decade, and the town around it is doing what it always does, hosting three markets, six concerts, one festival, and a race. Residents who treat the summer as a lost season miss the fact that the schedule works best when the walk is treated as the constant and everything else slots around it.
One Small Thing Worth Knowing
Portions of the recreation areas are active construction zones, and EBMUD asks the public for patience, awareness of project signage, and cooperation with temporary detours or delays. Practically, this means the signage this summer is real. The flaggers this summer are real. The 10 to 15 minute delay is real. It is also, in the scheme of a Lafayette summer, not much. The reservoir is being made more earthquake-safe for the next generation of walkers. Worth a few extra minutes on the loop.
For Lafayette Homeowners
If you have lived in Lafayette long enough, you already know that a home near the Res holds a different kind of value than a home two streets over. Access to the Lakeside Trail is not a category on the MLS, but it lives quietly in the price of every listing on Reliez Station, Silver Springs, and the streets fanning off Moraga Road. When we prepare a home for market in this part of town, the walking routine buyers imagine themselves inheriting is part of the story we tell, and the way we photograph and stage the property reflects it.
If you are thinking about a sale in the next twelve months and want a candid conversation about what your home would look like on the market, Tiscareno Homes offers a complimentary staging and market consultation. We handle the styling, the project management, and the presentation. You keep walking the Res.
