Archives: Current Issues 2008
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|Progress report on the San Dieguito Lagoon Restoration as of October 2008
Good news about the San Dieguito Lagoon Restoration: a large subtidal basin created over the old Del Mar airport teems with fish and invertebrates. So far, the restoration of the lagoon proceeds successfully under the effective leadership of Southern California Edison (SCE), helped by an excellent contactor, Marathon Construction. Most of this work has taken place on land owned by the San Dieguito River Valley Joint Powers Authority (JPA) and the project progressed rapidly during last year’s mild winter season. At present, restoration efforts are concentrated north of the river and east of I-5. A mile-long berm is complete and a large wetland is taking shape.
Less dramatic in its visual impact but eagerly awaited by the public, a segment of the Coast to Crest Trail nears completion east of the Boardwalk. Heading east, the trail follows the southern edge of the Fairgrounds, crosses under the freeway and reaches the old Strawberry stand on San Andres Road.
The situation west of Jimmy Durante Boulevard is fundamentally different. The JPA does not own any this land and has to rely on the good will of the adjacent jurisdictions to complete the project: the westerly passage of the Coast to Crest Trail and the dredging of the San Dieguito river inlet. The land is owned by City of Del Mar and the Fairgrounds on either side of the river. The State Land Commission has jurisdiction of the San Dieguito River bed and near banks.
Dredging the inlet under the railroad bridge is a challenge. This bridge was built around 1887 at the time of the opening of the railroad and appears to be the same bridge that we have today. It is supported by 456 pilings and spans not only the river but part of wetlands to the north.
As a consequence of dredging the lagoon inlet, the old bridge pilings would be submitted to enhanced tidal flow and greater attack by timber borers. North County Transit District, owner of the bridge, is actively working with SCE on a plan whereby the pilings impacted by the tidal flow would be wrapped in a protective layer of metal near the water line to inhibit marine borers.
So, while the restoration progresses very well, major challenges remain.