06 18.15 asce_tca environmental programs
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Transcript of 06 18.15 asce_tca environmental programs
The Toll Roads
Joint Powers Authorities (JPA)
San Joaquin Hills and Foothill/Eastern Agencies formed in 1986
The JPAs are separate legal entities with separate finances
One staff serves both JPAs
51 miles open
– 20% of OC freeway system
– 260,000 transactions per day
– Built parallel to OC’s congested I-5, I-405 and SR-55 freeways
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Environmental Compliance Program
TCA’s 2,200 acres of open space
Provides habitat for multiple species, including those considered threatened and endangered or limited local populations (e.g., coastal California gnatcatcher, brodiaea, coastal cactus wren, mountain lion., etc.)
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Transfer of TCA’s Mitigation Lands
Long term goal is to transfer these lands to other management entities
– For example in 2010, Siphon Reservoir (214 acres) was transferred to IRWD
– Remaining steps, include identifying parties acceptable to USFWS and CDFW for long term ownership and possible funding
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SR 241 Wildlife Safety Fence Project
Design Considerations
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Type Chain link V-Mesh Galvanized:
Difficult to climb
Low maintenance
80-99% Efficacy
30-40 years longevity
Integrate escape routes (jump
out ramps).
Height 8-12’ Cougars are excellent climbers,
as well as superb jumpers. They
can jump up to 20’ from a near
standstill.
Deer are agile and can jump
over a 6-ft fence with ease.
Bottom Buried Strongly recommended in areas
with wildlife capable of digging
under the fence (e.g. coyotes)
to create crawl holes.
Top Outrigger To prevent animals from
climbing over.
Location Closer to
the
roadway
~670 acres of additional
habitat would be available for
wildlife use.
Valarie McFall, Director
Doug Feremenga
Principal Environmental Analyst
TCA Environmental Planning
Contacts