2010 Census - Urbanized Area Reference Map · Peoria, IL Urbanized Area (68509)
Session: Restoring Riparian Landscapes in Urbanized ... · million dollar purchase price 3.3.17...
Transcript of Session: Restoring Riparian Landscapes in Urbanized ... · million dollar purchase price 3.3.17...
Session: Restoring Riparian Landscapes in Urbanized Watersheds of Southern California
Moderator: Wendy Katagi, CEP, Stillwater Sciences
RIPARIAN SUMMIT 2017UC DAVIS
Session Title: Restoring Riparian Landscapes in Urbanized Watersheds of Southern California
Moderator: Wendy Katagi, CEP, Stillwater Sciences
RIPARIAN SUMMIT 2017UC DAVIS
Riparian Summit 2017
Restoration Actions in the Los Angeles River and Upper Tributaries Through the Looking-Glass
Wendy Katagi
Senior Manager Watershed & Ecosystem Restoration Services
October 19, 2017
STILLWATER SCIENCES
Los Angeles
Riparian Summit
UC Davis
LOS ANGELES RIVER REVITALIZATION
River ActionDEVELOPMENT
Piggyback Yard/LATC
1.4billion dollars = authorized
project of the 11-mile USACE LA River Ecosystem
Restoration Project
Move atAll ScalesSimultaneously
2percent of the globe’s
surface that is covered by Mediterranean-type
ecosystems
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4
2 3
5
7
8
6
8
Channel Terracing
Taylor Yard
LA State Historic Park(Cornfields)
*The numbers indicate river reaches (1-8).
* Verdugo Wash
Arroyo Seco
Piggyback Yard (LATC)
ARBOR Project (aka “Alternative 20”)
Act Decisively
20+Years the site has beenwanted for a public park
42Acres
~60million dollar purchase price
3.3.17date the City celebrated the close of escrow on G2
Connect Habitat
LA River RestorationBureau of Reclamation
Ed. P Reyes Riverway
North Atwater Park and Creek Restoration
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Urban Orchard/Bandini Channel LA RiverCity of South Gate – Trust for Public Lands
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Glenoaks GreenwayBurbank Channel, Verdugo SEA
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Arroyo Seco Tributary to LA River
7
S O U T H R ESTO R AT I O N A R EA – FA L L 2 0 1 6
Arroyo SecoCurrent Stream Habitat Conditions
• South Restoration Area has generally good aquatic habitat conditions
• Native and non-native riparian vegetation
• Relatively cool summer water temperatures (2016 monitoring by RCDSMM)
S O U T H R ESTO R AT I O N A R EA – FA L L 2 0 1 6
Current Stream Habitat Conditions
• Some evidence of fine sediment deposition
• Multiple barriers to fish movement
N O RT H R ESTO R AT I O N A R EA – FA L L 2 0 1 6
Current Stream Habitat Conditions
• Intact riparian vegetation
• Lack of surface flow
• Substantial fine sediment deposition
N O RT H R ESTO R AT I O N A R EA – FA L L 2 0 1 6
Current Stream Habitat Conditions
• Habitat simplification
• Barriers to fish movement
Photo credit: Pasadena Star-News
L I K E LY L I M I T I N G FAC TO RS
Arroyo Seco Recommendations
• Channelized concrete streambed
• Fish barriers and impediments
• Fine sediment
• Instream flow
R EC O M M E N D E D AC T I O N S
• Restore channelized concrete reaches
• Remove or modify fish barriers
• Watershed-wide sediment management plan
• Fish surveys
• Targeted reintroductions of native fish
USACE proposed restoration reaches
H A H A M O N G N A A N D T H E U P P E R WAT E RS H E D
Looking Upstream…
• Station Fire impacts
• Sediment removal/management
• Brown Mountain Dam
Photo credit: Pasadena Now
H A H A M O N G N A A N D T H E U P P E R WAT E RS H E D
Looking Upstream…
• Current conditions – suitable for native fish?
• Stream habitat surveys
• Fish population surveys
• Identify priority areas for restoration & reintroduction
Office of Mayor Eric Garcetti
Michael Affeldt, LARiverWorks Director
Carol Armstrong, LA Mayor’s Office
Ed Demesa and Dan Sulzer, USACE, LA District
Tim Brick, Arroyo Seco Foundation
Nathan Holste, Bureau of Reclamation
Council for Watershed Health
Special Thanks