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Arboretum Waterway Flood Protection and Habitat Enhancement Project
The path on the south side of the Arboretum Waterway, which we sometimes refer to as the yellow brick road, is more than halfway complete. Soon the entire walk from the east end of the Arboretum GATEway Garden to the beginning of the Redwood Grove will have a universally accessible path of smooth pavers.
To provide multiple ecosystem benefits, students on our Learning by Leading Waterway Stewardship team are creating riparian (water edge) habitats around the newly constructed weirs throughout Phase One of the Arboretum Waterway Maintenance and Enhancement Project.
The path on the north side of the Arboretum Waterway is open again, now that construction on Phase 1 of the Arboretum Waterway Maintenance and Enhancement Project is nearing completion.
The weirs in Phase One of the Arboretum Waterway Maintenance and Enhancement Project are functioning beautifully. They allow water to flow from the east end of the Arboretum Waterway (where the weirs are located) to the west end of the Arboretum Waterway (near the Equestrian Center) where pumps send the water all the way out to Putah Creek. Once here, the water eventually reaches the San Francisco Bay.
The majority of the Arboretum is still open for walking, jogging, strolling, smelling the flowers and all the other activities you normally enjoy in the Arboretum except the portion between our Australian / New Zealand collection at the east end of the Arboretum up to, but not including, the Redwood Grove.
We’re still finishing up Phase One of the Arboretum Waterway Maintenance and Enhancement Project, but the construction fencing located in T. Elliot Weier Redwood Grove and Lake Spafford areas is now removed! We expect the pump controller to be programmed by the end of November. Once it is ready, we can turn the pump on and see the water flow over the weirs. If the weather holds out, you can also expect to see some new plants getting planted around the weirs in December.
The construction dam is down and water is now back in parts of the phase one project area. (Phase one of the Arboretum Waterway Maintenance and Enhancement Project extends from the easternmost portion of the waterway all the way to Wyatt Deck near Lake Spafford.) We're now working with contractors to test and optimize the pump system, which is an essential part of the waterflow in the Arboretum Waterway.
Thank you to our Waterway WOW! donors! Generous supporters gave over $68,000 during the campaign to provide plants we will use to re-vegetate the banks of the waterway and to help us launch vital student programs. We are incredibly grateful! We will keep you informed about our progress and how this funding impacts the waterway’s long-term value as an educational and community engagement resource!
Four out of the five weirs for Phase 1 of the Arboretum Waterway Maintenance and Enhancement Project are complete, and the last weir should be finished by the end of September. This means we are very close to being able to return water to the channel and watch the water flow over the new weirs and through the wetland plantings.
