Presented by:
Remi Candaele, PE; Director
Meyers Creek Drainage Study
City Council September 16, 2026
1 Where Is Meyers Creek?
• Definitions:
Watershed: An area of land that catches rain and
channels it downhill.
Tributary: A smaller stream that flows into a larger
stream of river.
• Northwestern portion of the City of San
Bernardino
• Foothill watershed to Cable Creek east off
Interstate 215
• Meyers Creek flows south through the
Verdemont community
• Crosses Meyers Road and Belmont Avenue
• Discharges to Cable Creek near Little League
Drive
• Tributary watershed: approximately 811 acres
Q3 Consulting 2
Meyers Creek Drainage Study
Staff gage
Bubbler
Why is a Drainage Study Needed?
• Storm drain clogging
and channel deposition
documented in 2006
and 2010
• Mud and debris
reached local streets in
November 2022
• New development has
increased runoff
entering Meyers Creek
• Future development
• Emergency sediment
removal places
demands on City staff
Q3 Consulting 3
Meyers Creek Drainage Study
Staff gage
Bubbler Meyers Rd, 2022
Meyers Rd Crossing, 2010
Meyers Rd Crossing, 2006
What Did the Study Find?
Q3 Consulting 4
Meyers Creek Drainage Study
Staff gage
Bubbler
• The Existing Crossings (Meyers
Road and Belmont Avenue) Act As
“Bottleneck”.
• The Existing Creek does not have
the capacity to convey the
estimated 10-year or 100-year
events.
• Floodwaters start breaching out
approximately 1,000 feet north of
Meyers Road.
• Fine sediment deposition is likely
from construction activities and
the former agricultural operations.
Q3 Consulting 5
Meyers Creek Drainage Study
Staff gage
Bubbler
Alternatives Considered
Q3 Consulting 6
Meyers Creek Drainage Study
Staff gage
Bubbler
• Two Long-Term Solutions Were
Evaluated
• Alternative 1: Backbone Storm
Drain
Capture overflowing water and
convey it underground to Cable
Creek.
• Alternative 2: Improved Channel
and Debris Basin
Capture debris upstream and
convey storm flows through an
improved concrete-lined channel.
Alternatives Considered
Q3 Consulting 7
Meyers Creek Drainage Study
Staff gage
Bubbler
Alternative 1: Backbone
Storm Drain
Q3 Consulting 8
Meyers Creek Drainage Study
Staff gage
Bubbler
• Underground Conveyance
• Approximately 2,300 feet of backbone
storm drain
• New laterals along Meyers Road and
Belmont Avenue
• Reinforced concrete boxes up to
approximately 11 feet by 7 feet
• Discharge to Cable Creek
• Preliminary construction cost:
approximately $25.0 million
• Primary Benefit: Lower cost and less
property acquisition
• Primary Limitation: Addresses
overflowing water but provides
limited upstream debris control
Cable Creek at Little League Dr. (Existing)
Proposed Outlet Structure (Concept)
Alternative 2: Improved
Channel and Debris Basin
Q3 Consulting 9
Meyers Creek Drainage Study
Staff gage
Bubbler
• Convey All Floodwaters and Manage
Debris
• Approximately 29.9 acre-feet of debris
storage with habitat and recharge
• Concrete-lined channel beginning
approximately 1,000 feet north of
Meyers Road
• New 32-foot-span arch crossings at
Meyers Road and Belmont Avenue
• Maintenance roads, outlet works,
spillway, and bank protection
• Preliminary cost: approximately $64.1
million
Meyers Creek (Existing)
Proposed Channel (Concept)
Alternative 2: Improved Channel and Bridge Crossings
Q3 Consulting 10
Meyers Creek Drainage Study
Bubbler
Existing Culvert at Meyers Road Proposed Culvert (Concept) Alternative 2: Improved Channel and Debris Basin
Q3 Consulting 11
Meyers Creek Drainage Study
Staff gage
Bubbler
Conceptual Rendering of Upstream Debris Basin
Comparison of Alternatives
Q3 Consulting 12
Meyers Creek Drainage Study
Staff gage
Bubbler
Category Alternative 1 – Backbone Storm Drain Alternative 2 – Improved Channel & Debris Basin Conveyance Capacity 100-year flows 100-year flows and debris Construction Cost ~$25.0 million ~$64.1 million
Right-of-Way Needs Minimal (mostly within City right-of-way) Significant (11 parcels or 7.9 acres of acquisition) Environmental
Impacts/Mitigation
Limited (mostly within disturbed ROW) Higher (riparian/streambed impacts, SBKR habitat) Permitting Timeline 12–18 months 18–48 months
Constructability Trenching in roadways; staged closures; utility conflicts
Major grading; full road closures; culvert
replacement
O&M Responsibility City of San Bernardino County Flood Control District (post-dedication) Annual O&M Cost ~$30,000 + As-Needed Debris Removal ~$147,000 Next Steps
Q3 Consulting 13
Meyers Creek Drainage Study
Staff gage
Bubbler
• Identify funding sources and grant opportunities
• Discuss potential partnerships with other agencies
• Potential interim solutions:
Construct berm deflectors north/south of Meyers Rd and Belmont Ave Coordination with local land owners may be necessary
14 QUESTIONS
Remi Candaele, MS, PE, QSD, QISP
949.259.6441
[email protected]
Meyers Creek Drainage Study