Lakes & Dams
Aerial Photos of Lakes
Browse our collection of aerial photos for lakefront and lake access home owners.
Lake Improvement Projects
Part 309 of the Natural Resources and Environmental Protection Act (NREPA,) Public Act 451 of 1994, as amended, provides a legal mechanism for implementing improvements to inland lakes by establishing a Lake Improvement Board. The Lake Improvement Board is comprised of a member of the board of County Commissioners, a member of the local unit of government (city/village/township), a lakefront resident, and the County Drain Commissioner.
Dam Maintenance & Lake Levels
The Livingston County Drain Commissioner inspects, operates, and maintains 9 dams in Livingston County. Approximately 1/3 of 1 staff person’s time, averaged over the course of a year, is spent on monitoring and operating our lake level structures. Although the lake levels are Court ordered, and inspected regularly, official lake levels can fluctuate due to excessive precipitation or lack of rain and snow.
LAKE LEVEL CHANGE NOTIFICATIONS 2026 – All LAKE LEVEL CHANGES ARE TENTATIVE AND HIGHLY DEPENDENT BY WEATHER
Hiland Lake – Proposed start for raising to summer lake level is March 13th, 2026. The court order stipulates a winter lake level of 883.0′ (+ or -0.2′).
Thompson Lake – The court order stipulates a summer lake level of 904.5′ and winter level of 901.5′ on even years. There was no winter drawdown for 2025-2026.
West Crooked Lake – Proposed start for raising to summer level is March 16, 2026. The court order stipulates a summer lake level of 940.66′.
Bass Lake
| Dam Location (Photo) | Hamburg Township |
| Dam Established | 12/10/1963 |
| Legal Lake Level | 853.95 |
| Lake Size | 178.06 Acres |
| Tributary Area | 8,219 Acres |
| Maps | PDF Map |
| Aerial Photo |
For larger or more recent views, contact the GIS Department. |
Cedar Lake
| Dam Location (Photo) | Marion Township |
| Dam Established | 1/29/1985 |
| Legal Level | 936.6 |
| Lake Size | 114.62 Acres |
| Tributary Area | 14,080 Acres |
| Maps | PDF Map |
| Aerial Photos |
For larger or more recent views, contact the GIS Department. |
HiLand Lake
| Dam Location (Photo) | Putnam Township |
| Dam Established | 9/16/1981 |
| Legal Level (Summer) | 883.0 (+/- 0.2) |
| Legal Level (Winter) | 882.2 (+/- 0.2) |
| Lake Size | 119.07 Acres |
| Tributary Area | 51,008 Acres |
| Maps | PDF Map |
| Aerial Photos | Contact the GIS Department. |
Long Lake
| Dam Location (Photo) | Hartland Township |
| Lake Level Established | 5/26/1947 |
| Legal Lake Level | 953.0 |
| Lake Size | 174.23 Acres |
| Tributary Area | 2,816 Acres |
| Maps | No Map Available |
| Aerial Photos | Contact the GIS Department. |
2025 Dam Repair Project
Public Hearing: the Livingston County Drain Commissioner’s Office, as the delegated authority for Livingston County, held a public hearing to review the special assessment roll and project cost for repairs to the Long Lake Dam. The public hearing was held on: Wednesday, December 17, 2025, at 6:00pm, at Hartland Township Hall, located at 2655 Clark Road, Hartland, Michigan 48353.
- Public Hearing Notice
- Draft Special Assessment Roll (by last name)
- Draft Special Assessment Roll (by parcel ID)
- Draft Computation of Repair Costs
- Long Lake Dam/Culvert Repair Construction Plans
- Assessment District Map
- Public Hearing Slides, December 17, 2025
2024 Dam Repair Informational Meeting
There was an informational meeting held with residents on September 18, 2024 regarding a proposed repair project. The presentation slides from that meeting as well as other informational documents requested from that meeting can be found below:
- Informational Meeting Slides, September 18, 2024
- 1947 Court Order
- 1950 Construction Plans
- 2006 Court Order
Archive
Long Lake Archive
Lake Chemung
| Dam Location (Photo) | Genoa Township |
| Dam Established | 2/15/1925 |
| Legal Lake Level | 957.25 |
| Lake Size | 307.44 Acres |
| Tributary Area | 3,008 Acres |
| Maps | PDF Map |
| Aerial Photos | Contact the GIS Department. |
Nichwagh Lake
| Dam Location (Photo) | Green Oak Township |
| Dam Established | 2/15/1925 |
| Legal Level | 887.0 |
| Lake Size | 121.34 Acres |
| Tributary Area | 11,840 Acres |
| Maps | PDF Map |
| Aerial Photos | Contact the GIS Department. |
Runyan Lake
| Dam Location (Photo) | Tyrone Township |
| Dam Established | 8/16/1938 |
| Legal Level | 894.0 |
| Lake Size | 170.68 Acres |
| Tributary Area | 10,432 Acres |
| Aerial Photos | Contact the GIS Department. |
Thompson Lake
| Dam Location (Photo) | City of Howell |
| Dam Established | 10/10/1984 8/26/1989 (Order Modified) 11/8/1999 (Order Modified) |
| Legal Level (Summer) | 904.5 |
| Legal Level (Even Years – Winter) | 901.5 |
| Legal Level (Odd Years – Winter) | 904.5 |
| Lake Size | 268.06 Acres |
| Tributary Area | 7,808 Acres |
| Aerial Photo |
Contact the GIS Department for larger or more recent views. |
West Crooked Lake
The West Crooked Lake level was established under Part 307 of the Natural Resources and Environmental Protection Act (NREPA), also known as Public Act 451 of 1994, as amended. The summer and winter lake levels are mandated by a 1990 Court Order, which came about by petition from the residents owning land surrounding the lake. The Livingston County Drain Commissioner (LCDC) is responsible for maintaining the levels through operation of the dam. LCDC is also responsible for inspecting and maintaining the dam.
The lake level is monitored by LCDC staff regularly, and more frequently during spring and fall rain events. The control structure consists of slats that can be added and removed to affect flow leaving the lake. There is not a perfect seal between each board, which means a trickle of water may still flow between the boards when boards are added.
The court order requires the winter level (939.75 feet) be set between November 1st – November 15th of each year. The order also stipulates that the change from winter level to summer level (940.66 feet) will occur at “ice out” each spring, which is defined as the breakup of ice from the shoreline. Based on requests by the Michigan DNR at the time of the court proceedings, the lake levels set by the court are intended to maintain a continuous flow of at least 2.5 cubic feet per second downstream of the dam, to the extent possible.
LCDC is obligated to adhere to the lake levels stipulated by the court order to the best of our ability. Fluctuations in lake level may occur due to excessive precipitation or lack of rain. The operation of the control structure during rain events takes into consideration the amount of rainfall, the lake level at the time of the rain event, and the impacts to landowners both upstream and downstream of the dam.
| Dam Location (Photo) | Genoa Township |
| Dam Established | 2/15/1925 |
| Damn Location Map | PDF Map |
| Legal Level (Summer) | 940.66 feet |
| Legal Level (Winter) | 939.75 feet |
| Lake Size | 188 acres |
| Tributary Area* | 3,200 acres |
| Aerial Photos | Contact the GIS Department. |
Tributary area is the approximate acreage of all the land area that drains to the dam structure.
