For decades Lewis MacAdams, cofounder of Friends of the Los Angeles River, has dreamt of making the Los Angeles River a swimmable, angler and boat friendly destination – a river more similar to the one that flowed across the Los Angeles basin a little over a century ago before the river was channelized and paved in concrete. A fragment of that former cottonwood-willow-and-gavel-lined river still exists today in Long Beach near the Willow Street Bridge. It is where the concrete-lined channel ends its 20-mile run, allowing the freshwater of its flow to mix with the saltwater of the Pacific
It is also the place where Calvin Abe and I recently witnessed an angler catch and release a 29.5” long, 14 lb. carp (a.k.a. Golden Bonefish). Calvin and I were photographing this location to document the astonishing diversity of resident and migratory bird species that can be found in the Willow Street Estuary and upriver, a location where the in-channel baffles slow water and collect sediment. The sediment builds all summer and autumn, supporting communities of vegetation and insects – an annual accumulation of refuge and food available for local wildlife until the Army Corps of Engineers removes the sediment and vegetation every fall in anticipation of winter rains.
Before the riverbed was lined with concrete there were at least seven species of fish that lived within the L.A. River and its tributaries, including southern steelhead and Pacific lamprey. The fish spawned in the river and spent their first 1-2 years in the waters before moving onto the open ocean waters.
Today, most of the fish in the river are washed out to sea along the low flow channel before they can grow more than a few inches. And, because the river is lined in concrete there is no place for the fish to bury their eggs. The ecological consequences of paving and channelizing L.A.’s River are stark, with native fish faring much worse than the birds and the other generalist species of wildlife that make their home in and near the L.A. River.