Long Lake Nwr 7 dam
Long Lake Nwr 7
Long Lake NWR 7, also known as Dike C, is a federal-owned structure located in Burleigh County, North Dakota. This fish and wildlife pond was completed in 1943 with the primary purpose of supporting conservation efforts in the area. The dam is made of earth and stone materials, standing at a height of 8 feet and spanning a length of 4000 feet. It has a storage capacity of 106,200 acre-feet and covers a surface area of 11,600 acres, serving as a vital resource for the local ecosystem.
Managed by the USFWS, Long Lake NWR 7 is regulated by the North Dakota State Water Commission, ensuring proper permitting, inspection, and enforcement measures are in place. The dam is equipped with a controlled spillway, vertical lift gates, and has a low hazard potential. Despite its age, the structure has not been rated for its condition, but is considered to have a very high risk level due to its critical role in managing water resources in the region. With its strategic location on Long Lake Creek, this dam plays a crucial role in maintaining water levels and supporting wildlife habitats in the area.
In the event of an emergency, the dam's Emergency Action Plan is not rated, and there are no recent updates on its risk assessment or management measures. However, with its importance in flood control and habitat preservation, Long Lake NWR 7 remains a key asset in the conservation efforts of the St. Paul District. Water resource and climate enthusiasts can appreciate the significance of this structure in sustaining the delicate balance of ecosystems in North Dakota.
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 Long Lake Nwr 7 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Long Lake Cr Below Long Lake Nr Moffit | 95 cfs | → |
| Apple Creek Nr Menoken | 116 cfs | → |
| Hay Creek At Main Avenue In Bismarck | 3 cfs | → |
| Beaver Creek Bl Linton | 32 cfs | → |
| Missouri River At Bismarck | 17,400 cfs | → |
| Burnt Creek Nr Bismarck | 1 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Long Lake Nwr 7.
Boat launches
- State Highway 1804 Emmons County
- Burleigh County
- 63rd Street Morton County
- 93rd Street Northeast Burleigh County
- Desert Road Burleigh County
- State Highway 1806 Morton County
Track Long Lake Nwr 7 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 Long Lake Nwr 7
Where does the data for Long Lake Nwr 7 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 Long Lake Nwr 7.