New Lake Arrowhead
New Lake Arrowhead is an earth dam located in San Bernardino County, California, built in 1976. It carries a High hazard potential classification and has a satisfactory condition assessment.
About New Lake Arrowhead
The primary purpose of New Lake Arrowhead is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by County Of San Bernardino (local government). It impounds the Little Bear Cr near Lake Arrowhead.
The dam stands 225 feet tall and stretches 1,300 feet across, creates a reservoir covering 31 acres, has a maximum storage capacity of 1,970 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1976, the structure is 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 05/22/2025.
At 225 feet, this dam is taller than 99% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The California dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | California |
| County | San Bernardino |
| Nearest City | Lake Arrowhead |
| River/Stream | Little Bear Cr |
| Coordinates | 34.25860, -117.16360 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 225 ft |
| Dam Height | 225 ft |
| Dam Length | 1,300 ft |
| Year Completed | 1976 (50 years old) |
Storage & Hydraulics
| NID Storage | 1,970 acre-ft |
| Max Storage | 1,970 acre-ft |
| Surface Area | 31 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | County of San Bernardino |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 05/22/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CA01124 |
| Federal ID | CA01124 |
| More Info | State Dam Safety Program |