First Street West Frontage Improvement Project

Project Location: First Street West Frontage of Depot Park

Flooding on First Street East at Depot ParkProject Description: First Street West is subject to flooding during even relatively minor storms.  A significant source of flooding is the open drainage channel adjacent to Depot Park.  Runoff from the watershed above the Mountain Cemetery is conveyed in a 54” diameter pipe culvert under the eastern edge of First Street West, next to Arnold Field.  This pipe drains under the Depot Park driveway to the small drainage channel along the Depot Park frontage.  Roots from four large eucalyptus trees severely restrict the capacity of this drainage channel.

sinkhole in a pedestrian pathway over the drainage channel on First Street WestDuring winter storms in 2019, a metal pipe at the downstream end of this drainage channel collapsed, resulting in a sinkhole in a pedestrian pathway over the drainage channel.  Temporary repairs kept drainage flowing through the rest of the rainy season.  The pathway supported by this culvert has been closed and is no longer needed.

The project includes removal of the culvert and pedestrian crossing, removal of four eucalyptus tree trunks and roots, enlargement of the drainage channel to reduce flooding, and stabilization of channel banks along the Depot Park frontage.  Tree removal will occur outside of the bird nesting season.  Replacement trees will be planted between the Depot Park picnic area and the drainage channel.  Vegetation will be planted along the channel.  The existing pathway in Depot Park will be reconstructed to end at the picnic area. The boardwalk south of the bike path will be retained.

Project Budget: TBD

Project Status:  Culvert removal, pedestrian crossing, and tree removal is tentatively scheduled to occur in mid-September to mid-October 2019. Drainage channel improvements and tree/vegetation planting is tentatively scheduled to occur in Summer/Fall 2020.

Depot Park First Street East Improvement Project Before
BEFORE
Depot Park First Street West Improvement Project After
AFTER
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