Tertiary Pond Dam
Tertiary Pond Dam is an earth dam located in Midland County, Michigan. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Tertiary Pond Dam
Tertiary Pond Dam is a dam in Midland, Michigan. The dam is owned by Dow Chemical Company (private). It impounds the Trib To Titabawassee near Midland.
The dam stands 15 feet tall, creates a reservoir covering 202 acres, and has a maximum storage capacity of 1,350 acre-feet.
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 08/21/2019.
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 Michigan 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 | Michigan |
| County | Midland |
| Nearest City | Midland |
| River/Stream | Trib To Titabawassee |
| Coordinates | 43.59004, -84.22794 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
Storage & Hydraulics
| NID Storage | 1,350 acre-ft |
| Max Storage | 1,350 acre-ft |
| Normal Storage | 800 acre-ft |
| Surface Area | 202 acres |
| Spillway Type | None |
Ownership & Safety
| Purpose | Other |
| Owner | Dow Chemical Company |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/21/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MI02676 |
| Federal ID | MI02676 |
| More Info | State Dam Safety Program |