Friday, November 16, 2012

We are Building a “Mini-Dam”...for the California Tiger Salamanders!

Prior to and during construction, the Calaveras Dam Replacement Project implements measures to avoid and minimize impacts to wildlife located in the Alameda Creek Watershed. 

Our Environmental team has taken proactive steps to protect and relocate the California tiger salamander (Ambystoma californiense) species since the start of the project.  The California tiger salamander (CTS) is an amphibian native to Northern California growing up to 8 inches long.  CTS have started to migrate at night from upland habitats to aquatic breeding sites, especially during the first major rainfall events of fall and early winter.

 California tiger salamander (Ambystoma californiense)

Wildlife exclusion fencing is strategically located along the boundaries of the construction work limits to deter wildlife from entering.  Also, water moistened buckets are placed in trenches between silt fences to catch the critters, which are later relocated to nearby ponds.

Just this week our approved biologist monitored berm repairs performed on a relocation pond for CTS.  The berm serves as a barrier which is positioned on the top of the pond, to reduce turbidity and maintain suitable conditions in the pond.  Permission was given by the California Department of Fish and Game to relocate 50 CTS to this location. 

As of today, 78 California tiger salamanders have been trapped and relocated to safer habitats away from project construction. With the repaired pond, we will be able to provide them a suitable and safe environment for breeding.

For more project info, contact us at our 24 hour answer line at (866) 973-1476 or email

Repair work on Pond for California tiger salamander

Repair work on Pond for California tiger salamander

Photo of pond after work completed

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