HomeMy WebLinkAbout2019-12-24; 2019 Kelly Channel Emergency Repair Update; Gomez, PazTo the members of the:
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Council Memorandum
Dec.24,2019
To:
From:
Honorable Mayor Hall and Members of the City Council
Paz Gomez, Deputy City Manager, Public Works
Via:
Re:
f Elaine Lu key, Chief Operations Officer 1f)._ .
2019 Kelly Channel Emergency Repair ~te
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Carlsbad
Memo ID# 2019151
This memorandum provides an update on the emergency repair of a concrete channel drainage
facility adjacent to Kelly Drive. The information below describes the most recent actions on the
emergency repair work. In addition, a brief summary is provided defining required follow-up
actions and future monitoring tasks.
Background .
Kelly Channei'extends from El Camino Real to Park Drive (approximately 2,100 feet) and has
undergone three emergency repairs since 2010. Each repair has occurred in different locations
along the facility, all of which required enrollment in the United States Army Corps of Engineers
(USACE) Regional General Permit.
On Dec. 5, 2019, staff circulated a Council Memorandum to provide information regarding the
damage Kelly channel had experienced from storm events occurring between Nov. 20 and 21,
2019.
On Dec. 9, 2019, the USACE issued a Regional General Permit No. 63 (RGP 63} for Repair and
Protection Activities inEmergency Situations (Permit) to the city authorizing the repair plan that
was proposed with the Nov. 27, 2019 permit application. On Dec. 10, 2019, a Clean Water Act
Section 401 Water Quality Certification was received from the San Diego Regional Water
Quality Control Board (San Diego Water Board). A Coastal Zone Consistency Determination was
issued by the city's Planning Department on the same day. ·
On Nov. 27, 2019, staff also submitted an emergency notification to the California Department
of Fish and Wildlife (CDFW). CDFW has 30 days to respond to the notification through ·issuance
of a retroactive permit. However, if no correspondence is received from CDFW,. then the.work is
covered under operational law and no further action is required with CDFW. The agency ruled
the 2018 Kelly Channel Emergency Repair Project as operation law, and the same ruling is
expected with this year's repair.
On Dec. 16, 2019, a minor public works contract was fully executed with Planes, Boats and
Automobiles, Limited (PBA) in an amount not to exceed $59,590. Staff issued a Notice to
Proceed on the same day. Professional Services Agreements were also formalized with LSA
Public Works Branch
Faraday Center 1635 Faraday Avenue · 1 Carlsbad, CA 92008 I 760-602-2730
Honorable Mayor Hall and Members of the City Council -
Dec.24,2019
Page 2
Consultants to conduct biological and archeological resource monitoring per the conditions of
the Permit.
The most recent repairs to the channel were completed between Dec. 13, 2019 and Dec. 19,
2019. On Dec. 13, 2019, Stormwater Best Management Practices (BMPs) were installed and the
dewatering of the void in the concrete-lined channel occurred on Dec 16, 2019. Dewatering and
additional site preparations occurred leading up to Dec. 18, 2019 and prior to the concrete
slurry placement. Approximately48 cubic yards of concrete slurry was used to fill the void and
stabilize the concrete channel lining. Biological and archeological monitors were onsite
throughout the repair activities to confirm conformance with the Permit. On Dec. 19, 2019,
repair activities including site clean-up were completed.
Next Steps
Per the conditions of the Permit, a written report of activities is required to be submitted to the
USACE and San Diego Water Board by Feb 1, 2020. The city will be released of all Permit
obligations upon acceptance of the report and a Notice of Termination will then be issued to ·
the city. Compensatory mitigation is not required as the repair was limited to the concrete
lining and did not result in habitat adverse impacts.
A Capital Improvement Program (CIP) project to reconstruct the channel in its entirety was
included in the fiscal year 2019-20 CIP budget. Extensive technical studies to support the design
and environmental approvals are expected to prolong procurement of the project. As a result,
emergency or localized repairs may be required in the interim c;lue to future storm events. Staff
will continue to monitor the conditions of the channel prior to and following each storm event
until completion of the channel CIP project.
cc: Scott Chadwick, City Manager
· Celia Brewer, City Attorney
Tom Frank, Transportation Director
Aman'da Guy, Deputy City Attorney
James Wood, Environmental Manager
Hossein Ajideh, Engineering Manager