New creek channel created
4
12 New creek channel created Culvert removed Cliff Drive Small step weirs for fish Prefabricated steel/wood bridge Limit of work Estua ry Trailhead in parking lot Grade slope for emergent wetland Trail to DFP No Access PROPOSED SITE LAYOUT New Mesa Creek Channel Rock weirs Preliminary – for Discussion Purposes Only Top of bank
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Culvert removed. Rock weirs. Cliff Drive. No Access. Small step weirs for fish. Trailhead in parking lot. New Mesa Creek Channel. Top of bank. New creek channel created. Estuary. Trail to DFP. Limit of work. Prefabricated steel/wood bridge. Grade slope for emergent wetland. - PowerPoint PPT Presentation
Transcript of New creek channel created
12
New creek channel created
Culvert removed
Cliff Drive
Small step weirs for fish
Prefabricated steel/wood
bridge
Limit of work
Estuary
Trailhead in parking lot
Grade slope for emergent wetland
Trail to DFP
No Access
PROPOSED SITE LAYOUT
New Mesa Creek Channel
Rock weirs
Preliminary – for Discussion Purposes Only
Top of bank
Protect ex. willow trees
Protect ex. native shrubs
Protect ex. native shrubs
Protect ex. oak 14”
Remove ex. poison oak
LANDSCAPING PLAN9
Western sycamore
Coast live oak
Arroyo willow
Alder Elderberry
Plant Mix A – Grassland & Coastal Sage Scrub.
California melic, Black sage, Lemonade berry, Giant ryegrass, Coastal goldenbush, Golden yarrow, Coastal buckwheat, and Coastal sunflower
Plant Mix B – Riparian Scrub.
California rose, Purple nightshade, Blackberry, Toyon, Lemonade berry, Mugwort, Snowberry, Coffeeberry, Fuschia flowered gooseberry, Giant ryegrass, and SB honeysuckle
Plant Mix C – Riparian Woodland.
Arroyo willow, Mugwort, California rose, Sticky monkeyflower, Rush, Western goldenrod, Creeping ryegrass, and Wood mint
Plant Mix D – Emergent Wetlands.
Rush, Common spikerush, Yerba mansa, Nutsedge, and Praire bulrush, and Saltgrass
Plant Mix E – Streambed Wetlands.
Rush, Nutsedge, and Praire bulrush
Note: List of plant species, quantities, and planting densities are provided in technical specifications.
Protect willows and oaks. Prune.
Prune willow clump
LANDSCAPING PLAN
Preliminary – for Discussion Purposes Only
Protect. willow trees
Protect willows and oaks. Prune.
Remove 8” willow
Remove 18” leaning willow
Remove willow clump
Remove ex. willow clump
Remove two coral trees and one palm
tree, and all ornamental shrubs.
Protect native shrubs
Prune willow clump
Remove. 10” oak
Remove willow clump
Remove 30” willow tree
Remove walnut trees
Protect, if poss., 7” oak tree
Remove walnut trees
Remove four ex.
oak trees 9-14”
Remove ex. willow trees in
work area
TREE PROTECTION AND REMOVAL PLAN11
TREE REMOVAL AND PROTECTION
Native tree removal:
Three willow trees
Four willow clumps
Five oak trees
Preliminary – for Discussion Purposes Only
Concrete sill
Alignment of low-flows (typical)
Typical concrete step weir
Steel anchor bolts
Higher water level under same flows
8-10”
Current condtions
Moderate flow water level
Ex. mortared boulders
Concrete structure
Photographs of the locations for three concrete step weirs
ROCK APRON MODIFICATION PLAN13
Step weirs
Preliminary – for Discussion Purposes Only
