HomeMy WebLinkAboutColma Creek Advisory Minutes 09-11-18 FINAL (2)
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H:\Colma Creek Advisory Committee\2018\2018 09 11\Colma Creek Advisory Minutes 09-11-18 FINAL.docx
San Mateo County Flood Control District
Colma Creek Flood Control Zone Citizens Advisory Committee
Meeting Minutes
Tuesday, September 11, 2018
I. CALL TO ORDER
Judith Christensen called to order the regular meeting of the Colma Creek Flood Control Zone Citizen’s
Advisory Committee at 3:21 pm on Tuesday, September 11, 2018, in the City of South San Francisco –
Corporation Yard Conference Room, 550 North Canal Street, South San Francisco.
II. ROLL CALL
Members:
Present Absent
Helen Fisicaro, Chair – Town of Colma
Irene O’Connell – City of San Bruno
Judith Christensen – City of Daly City
Sue Digre – City of Pacifica
Richard Irli, Member at Large – City of South San Francisco
Kamala Cynthia Silva Wolfe, Member at Large – City of South San Francisco
Mike Futrell – City of South San Francisco
Gail DeFries, Member at Large – City of Daly City
Ed Bortoli, Member at Large – City of South San Francisco
Staff:
Present Absent
Ann Stillman – County of San Mateo/San Mateo County Flood Control District
Jim Porter – County of San Mateo (Director of PW/San Mateo County Flood
Control District)
Michael Barber – County of San Mateo/Supervisor Dave Pine’s Office
Mark Chow – County of San Mateo/San Mateo County Flood Control District
Brad Donohue – Town of Colma
John Fuller – City of Daly City
Kari Jung – City of South San Francisco
Justin Lovell – City of South San Francisco
Ken Anderson – City of South San Francisco
Erika Powell – San Mateo County Flood Resiliency Program
Eunejune Kim – City of South San Francisco
Richard Chiu – City of Daly City
Consultants:
Present Absent
Robert Dusenbury – Lotus Water
Mo Sharma – CSG Consultants
III. APPROVAL OF MINUTES
Motion – Irene O’Connell, Second – Gail DeFries.
Minutes of the June 12, 2018, meeting were approved.
IV. PUBLIC COMMENT
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No members of the public were present.
V. DISTRICT PROJECTS, ETC.: SUMMARIZED IN A HANDOUT AND OPEN FOR
ADDITIONAL DISCUSSION
El Camino Box Culvert and Mission Road Diversion Structure
As previously reported, the District selected the consultant firm of CDM-Smith to perform a condition
assessment of the box culverts starting approximately 300 feet north of the intersection of El Camino
Real and “A” Street in Daly City to the beginning of the BART section at the Treasure Island Mobile
Home Park. The total length of culvert to be inspected was approximately 8,660 feet or 1.6 miles, which
included the segment under Mission Road that is approximately 1,089 feet and consists of a double box
(two boxes placed side by side).
The inspection of the box culverts was completed in May 2018. A draft report was submitted in early
August and comments from District staff have been provided to the consultant. A final report is
anticipated to be completed by October 2018. The findings indicate the overall condition of the box
culverts is good with no major defects or areas requiring immediate attention. A recommended list of
repairs for the near future and maintenance/inspection schedule will be provided as part of the final
report. A preliminary estimate based on 2018 construction cost index for completing the types of
recommended repairs is approximately $600,000 which includes engineering, construction and
contingencies.
BART Co-op Project
In June of this year the District requested the Town of Colma (Town) to perform graffiti abatement at
the diversion structure and the channel wall immediately downstream of the Mission Road box culverts
per the existing Memorandum of Agreement (MOA). It was observed by District staff during the August
15, 2018 quarterly inspection that the graffiti at the diversion structure was abated but those downstream
of the Mission Road box culvert still remain. In addition, the District on August 21, 2018 forwarded a
City of South San Francisco Code Enforcement complaint about overgrown vegetation along the
channel between the Costco pedestrian bridge and McLellan Drive to the Town. The Town indicated
that the work could be completed in September 2018.
Colma Creek Improvements between Spruce and San Mateo Avenues
In June 2018 the District requested the City of South San Francisco (City) to repair an opening in the
gate to the access road at San Mateo Avenue per the MOA. It was observed by District staff during the
August 15, 2018 quarterly inspection that the damaged fence has not been repaired. The District
continues to monitor this section of channel regularly for wall movement or settlement at a segment of
the south wall immediately downstream of the San Mateo Avenue Bridge.
Mitigation Sites downstream of Utah Avenue
District staff and Sheriff Work Program (SWP) participants continue to perform planting, weeding, and
trash pick-ups at the five Mitigation Sites (2a, 2b, 2c, 3, and 4). The next SWP cleanup date was
scheduled for September 29, 2018.
In addition, the District hosted a Coastal Cleanup Day event with South San Francisco’s Environmental
Compliance Program on September 15, 2018.
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The following table summarizes the amount of trash removed from the Mitigation Sites since 2005 and
the trash pick-up dates from 2017 through 2018. An additional 5.23 CY of trash have been removed
from the Mitigation Sites since the last Advisory Committee meeting.
Year
Amount of Trash
Removed
(Cubic Yard)
Event Dates *
2018 20.90 1/6, 1/20, 1/27, 2/10, 2/24, 3/17, 4/21, 4/28, 5/19, 5/26, 6/30,
7/28, 8/18
2017 41.80 1/7, 1/21, 2/4, 2/18, 3/4, 3/11, 3/18, 4/1, 4/22, 5/6, 5/20, 6/17,
7/15, 8/19, 9/16, 9/30, 10/21, 11/18, 12/2, 12/21 (20 times)
2005 -
2016 575.08 12-19 times per year.
Total 637.78
* Number of event dates increased per mitigation required for Channel Wall Repair Upstream of Spruce Avenue.
Maintenance of Existing Channel
The quarterly inspection of the Colma Creek Flood Control Channel was performed on August 15, 2018
(See Maintenance Matrix Binder). Representatives from the City accompanied District staff during the
inspection. Illegal dumping was observed in Mitigation Site 2 and beneath the Produce Avenue bridge.
Issues requiring enforcement by the City or the Town have been forwarded to the respective entity.
As previously reported and required by the long-term maintenance permits issued in 2017, the District
submitted the Notification for Proposed Activities to the California Department of Fish & Wildlife for
maintenance work during the 2018 season. Proposed activities include: channel bottom repair near
Antoinette Lane; removal of sediment in the channel near the Produce Avenue bridge; grouting of 4
culvert outlets near Antoinette Lane; graffiti abatement; fence repair; and vegetation removal.
Additional maintenance activities may be added with advance notification to the agencies. Vegetation
removal on the access roads upstream of Antoinette Lane and between San Mateo Avenue and Produce
Avenue was completed by County maintenance staff. Repairs to the channel bottom and culvert outlets
at Antoinette Lane are currently being done by the County’s contractor. Dredging of sediment at
Produce Avenue was scheduled to occur on September 26, 2018.
Produce Avenue – Channel Wall Project
There is no update on this project. The District continues to monitor the channel walls immediately
upstream and downstream of the Produce Avenue Bridge during the quarterly inspections.
Utah Avenue to Bay
As previously reported, the District submitted to the California Governor’s Office of Emergency
Services (CalOES) multiple applications for FEMA Hazard Mitigation Grant Program (HMGP) funding
of the flood walls downstream of the Utah Avenue bridge since June 2016. On November 30, 2017,
CalOES informed the District that it has completed its review of the application and has submitted it to
FEMA for grant review and funding consideration. On February 24, 2018 CalOES provided an update
on the FEMA review which stated that it is now in the Environmental Review process, which could take
anywhere from several months to years to approve. While the District continues to wait for a decision
from FEMA the preliminary design of the project is in progress. The consultants selected for the design
completed the 95% design submittal in February 2018. The District plans to finalize the design by the
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end of 2018 in anticipation to commence construction in 2019, pending completion of the CEQA
process and issuance of all necessary permits.
In August 2018 District staff provided CalOES and FEMA with various elements from the
administrative draft CEQA compliance document prepared for the project as follow up to the June 6,
2018 meeting with FEMA’s environmental contractor. District scheduled an inter-agency meeting for
September 13, 2018 to discuss the environmental permitting approach with the various regulatory
agencies deemed to have jurisdiction. The intent of the meeting is to obtain comments on the proposed
permitting approach and feedback to incorporate into the project’s permit applications. It is anticipated
that the CEQA documents will be submitted to the State Clearinghouse for circulation and public
comments by December 2018.
Sea Level Rise Preparedness
District staff have been working with the County’s Flood Resilience Program on developing the
hydraulic model for the Colma Creek flood control channel to provide flood protection during a 100-
year storm event with a projected 3’ sea level rise. The model will include Navigable Slough in the
analysis.
Multi-jurisdictional Regional Stormwater Capture Project at Orange Memorial Park (SSF and
San Mateo Countywide Water Pollution Prevention Program)
City of S. San Francisco and consultant (Lotus Water) presented the 3 alternatives developed through
the site analysis and concept evaluation process.
Colma Creek Technical Advisory Committee (TAC)
The TAC met on July 10, 2018. District staff presented the TAC with the preliminary findings of the El
Camino Real/Mission Road box culvert inspection and condition assessment by CDM Smith.
The TAC discussed work being performed or scheduled by City and Town staff or contractors under the
MOAs. City confirmed that graffiti abatement work was done by City staff on the channel wall upstream
of the Utah Avenue bridge as observed during the May 1, 2018 quarterly inspection. Copies of the fiscal
year 2017-18 annual reports were provided at the Advisory Committee meeting.
The TAC members from Colma, Daly City, and S. San Francisco who were present at the meeting
informed District staff that there were no comments on the 95% design plans for the Utah Avenue to
Navigable Slough Flood Wall Project.
VI. DISCUSSION ITEMS
Colma Creek Flood Control Zone Financial Summary
Colma Creek CIP Project List
Advisory Committee Members – Updated Member List and Terms
FY 2017-18 Activities per the Memorandum of Agreement for Maintenance of Colma Creek Flood
Control Channel – Annual Reports
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VII. ACTION ITEMS
None
ADJOURNMENT
NEXT MEETING – Tuesday, December 11, 2018