Channel Diversion Dike dam
Channel Diversion Dike
The Channel Diversion Dike, located in Los Angeles, California, was completed in 1940 with the primary purpose of flood risk reduction along the Storm Dr Channel. This earth dam stands at 42 feet high and has a hydraulic height of 34.4 feet, providing a storage capacity of 437 acre-feet. With a low hazard potential and a satisfactory condition assessment as of September 2017, the dam is regulated by the Department of Water Resources (DWR) under the Safety of Dams program, ensuring regular inspections and enforcement of safety measures.
Owned and operated by the local government, the Channel Diversion Dike plays a crucial role in managing stormwater and protecting the surrounding areas from potential flooding events. Despite its age, the dam continues to serve its purpose effectively, with a last inspection date in November 2020 indicating ongoing maintenance and oversight. Furthermore, the dam's emergency action plan (EAP) status and risk management measures are currently not specified, suggesting a potential area for improvement in enhancing preparedness and response protocols in case of emergencies.
As a key infrastructure asset in flood risk mitigation, the Channel Diversion Dike remains a vital component of water resource management in the region. With its strategic location and design, the dam contributes to the overall safety and resilience of the community against the impacts of extreme weather events and changing climate patterns. Continued monitoring and proactive maintenance of this structure are essential to ensure its long-term functionality and effectiveness in safeguarding the surrounding areas from potential flood hazards.
Dam data reference
Condition Assessment
- Satisfactory
- No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
- Fair
- No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
- Poor
- A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
- Unsatisfactory
- A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
- Not Rated
- The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Hazard Potential Classification
- High
- Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
- Significant
- Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
- Low
- Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
- Undetermined
- Dams for which a downstream hazard potential has not been designated or is not provided.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Channel Diversion Dike -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Big Tujunga C Bl Hansen Dam Ca | · | → |
| Los Angeles R A Sepulveda Dam Ca | 97 cfs | → |
| Santa Clara R Nr Piru Ca | 210 cfs | → |
| Arroyo Seco Nr Pasadena Ca | 6 cfs | → |
| Piru Creek Below Santa Felicia Dam Ca | 198 cfs | → |
| Piru Creek Above Lake Piru Ca | 34 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Channel Diversion Dike.
Boat launches
- Lake Hughes Road Castaic
- Piru Canyon Road 4780, Castaic
- Interstate 5, Lebec
- Vacquero Boating And Picnic Site
- Vista Del Lago Road 21, Lebec
Campgrounds
- Group Campground 6
- Group Campground 5
- Group Campground 4
- Group Campground 3
- Group Campground 2
- Group Campground 1
Fishing spots
Paddle runs
- Site Of St Francis Dam Disaster To Seco Canyon At The Nf Boundary
- Lower Piru Creek (Oulet At Pyramid Reservoir) To Piru Reservoir
- West Fork - Headwaters (Se 1/4, Ne 1/4, Sec 14, T2n, R12w) To Cogswell Reservoir (Ne 1/4, Sw 1/4, Sec 24, T2n, R9w
- Green Valley At The Nf Boundary To Site Of St Francis Dam Disaster
- Headwaters In The Santa Monica Mountains To Mouth At Pacific Ocean
- Gaging Station Below Spillway Of Cogswell Dam (Ne 1/4, Se 1/4, Sec 19, T2n, R10w) To Confluence With Nf San Gabriel River (Sw 1/4.Sw 1/4, Sec 15, T2n, R9w)
Track Channel Diversion Dike in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Channel Diversion Dike
Where does the data for Channel Diversion Dike come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the Low hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Channel Diversion Dike.