10 Fernhill Avenue Accessory Dwelling Unit (ADU) Construction (Notification of Lake or Streambed Alteration, No. EPIMS-MAN-23990-R3)
Summary
SCH Number
2024070648
Public Agency
California Department of Fish and Wildlife, Bay Delta Region 3
(CDFW)
Document Title
10 Fernhill Avenue Accessory Dwelling Unit (ADU) Construction (Notification of Lake or Streambed Alteration, No. EPIMS-MAN-23990-R3)
Document Type
NOE - Notice of Exemption
Received
Posted
7/17/2024
Document Description
The California Department of Fish and Wildlife has executed Lake and Streambed Alteration Agreement EPIMS Notification No. EPIMS-MAN-23990-R3, pursuant to Section 1602 of the Fish and Game Code to Shelby LaMotte.
The Project is limited to construction of an elevated ADU within the 100-year floodplain and restoration and enhancement activities along the bank of the unnamed tributary to Ross Creek. The ADU will be constructed with piers and posts located adjacent to, and within the 100-year floodplain of, the unnamed tributary. The unnamed tributary is typically connected to its floodplain only during high flows; the floodplain currently provides upland habitat with ornamental and non-native vegetation. The ADU will be constructed at an elevation above sea level of approximately 40.5 feet and will allow floodwaters to move beneath the structure during large storms. Approximately 56 square feet and 12 linear feet of the 100-year floodplain will be permanently impacted with concrete piers and wooden posts for the ADU. An existing stone retaining wall on the southern unnamed tributary bank, adjacent to the ADU, and an existing pedestrian bridge that crosses the channel will remain on site. Two dead non-native fruit trees, one crabapple tree (Malus sp.), and one plum tree (Prunus sp.), will be removed from the southern top-of-bank. To offset impacts to the unnamed tributary, approximately 238 square feet and 52 linear feet of the northern bank of the unnamed tributary will be restored through removal of non-native bamboo (Phyllostachys sp.) and planting of native species including bigleaf maple (Acer macrophyllum), foothill sedge (Carex tumulicola), and common rush (Juncus effusus). The unnamed tributary will be dry during the Project.
Contact Information
Name
Melanie Day
Agency Name
CA Department of Fish and Wildlife
Job Title
Senior Environmental Scientist (Supervisory)
Contact Types
Lead/Public Agency
Phone
Location
Cities
Ross
Counties
Marin
Regions
San Francisco Bay Area
Other Location Info
The Project is located at an unnamed tributary to Ross Creek and the associated 100-
year floodplain, at 10 Fernhill Avenue, in the Town of Ross, County of Marin, State of California. The Project centroid is approximately Latitude 37.968240°N, Longitude 122.563050°W, and the Assessor’s Parcel Number is 073-051-18.
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Class 3; California Code of Regulations, title 14, section 15303
Reasons for Exemption
The project involves the construction and location of limited numbers of new, small facilities or structures; installation of small new equipment and facilities in small structures; or the conversion of existing small structures from one use to another where only minor modifications are made in the exterior of the structure.
County Clerk
Marin
Attachments
Notice of Exemption
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