Armstrong No 2 Dam dam
Armstrong No 2 Dam
Armstrong No 2 Dam, located in Chippewa, Michigan, is a privately owned structure on School Creek with a primary purpose of recreation. Constructed in 1954, this earth dam stands at a height of 12 feet and spans 490 feet in length. It has a storage capacity of 430 acre-feet and a surface area of 33 acres. Despite being categorized as having a low hazard potential, the dam is subject to regular state inspections, permitting, and enforcement by the Michigan Department of Environment, Great Lakes, and Energy (DEGLE).
The dam features an uncontrolled spillway with a width of 5 feet, and a maximum discharge capacity of 120 cubic feet per second. It is under the jurisdiction of the Detroit District of the US Army Corps of Engineers. Although the dam's condition assessment is currently not rated, it undergoes inspections every 5 years to ensure its structural integrity and safety. With a moderate risk assessment rating of 3, the dam is equipped with emergency action plans and emergency contacts for prompt response in case of any unforeseen events.
Armstrong No 2 Dam serves as a vital recreational area for the community, offering opportunities for fishing, boating, and other outdoor activities. Its strategic location and design contribute to the conservation of water resources in the area, while also presenting an appealing destination for climate enthusiasts and nature lovers to appreciate the beauty of Michigan's waterways.
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 Armstrong No 2 Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Tahquamenon River Near Paradise | 1,420 cfs | → |
| Black River Near Garnet | 36 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Armstrong No 2 Dam.
Boat launches
- South Scenic Drive Bruce Township
- South Krause Road Pickford Township
- Sailors Encampment Drive 1600, St. Joseph Township
- Point Drive 230, Laird Township
- Riverside Drive Sault Ste. Marie
- Riverside Drive 1225, Sault Ste. Marie
Campgrounds
- Munuscong River State Forest Campground
- Munuscong River - State Forest
- Kinross Rv Park East
- Kinross Rv Park West
- Aune - Osborn Rv Park
- Sherman City Park
Fishing spots
Paddle runs
- Origin At Confluence Of Outlets Of Frenchman Lake And Carp Lake (Sec 26, T44n, R6w) To West Section Line Of Sec 30, T43n, R5w
- Source In Sec 21, T47n, R12w To Mouth At Whitefish Bay
- East Branch From Western Forest Boundary (Sec 19, T46n, R6w) To Confluence With Mainstem
Track Armstrong No 2 Dam 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 Armstrong No 2 Dam
Where does the data for Armstrong No 2 Dam 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 Armstrong No 2 Dam.