The project to overhaul Prospect Island in the Delta aims to help repopulate vital smelt fish
Located north of Rio Vista in Solano County and west of Walnut Grove in Sacramento County sits Prospect Island in the Delta region.
Soon, big changes will lead to the transformation of the island's 1,600 acres. Dan Riordan, an environmental program manager for the California Department of Water Resources, said this overhaul he and his staff are taking on is all in the name of conservation.
"I love seeing this region get rebuilt," Riordan said. "It is a lot of work. We have a great crew out here. It's a massive effort."
Levees cutting through the island were built in the late 1800s, and the island was drained of water in the 1930s. It made traveling on the island easier, but it cut off natural water flows coming from nearby Miner Slough. Over time, it has taken its toll on the environment, impacting the population of the Delta smelt, an endangered species of fish.
Riordan said the hope is to re-establish the fish in the Delta. The California Department of Fish and Wildlife's website states the fish is currently endemic only in the San Francisco Estuary.
Delta smelt might be a tiny fish, but it has a giant impact on the food chain. It’s food for so many other species of fish and the fear is that if the smelt dies out, the effects on the food chain would be irreversible.
Work began on the island a few months ago, with the area being cleared once having been a forest. Riordan said they plan to install a giant habitat bench that protects the levee and would also help native vegetation re-establish in the area.
Part of the levee will then be breached, allowing water to flow over the island once again.
This one project is part of a bigger plan to restore water flow to nearly 8,000 acres in the Delta, flooding much of what is currently walkable. It should take about two years to finish.
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