Thyberg Dam; Marvelin dam
Thyberg Dam; Marvelin
Thyberg Dam, located in McLean County, North Dakota, is a marvel of engineering designed by the USDA NRCS and completed in 1967. This private-owned Earth dam, with a height of 25 feet and a length of 250 feet, serves as a Fish and Wildlife Pond along the Missouri-TR River. With a storage capacity of 43 acre-feet and a surface area of 4 acres, Thyberg Dam provides critical habitat for local wildlife and supports conservation efforts in the region.
Despite being classified as having a low hazard potential, Thyberg Dam plays a crucial role in managing water resources and supporting the ecosystem in the area. The spillway, with a width of 50 feet, helps regulate water flow during periods of high discharge, ensuring the stability and integrity of the dam. While its condition is currently assessed as "Not Rated," regular inspections are conducted to ensure the safety and functionality of the structure.
In the realm of water resource and climate enthusiasts, Thyberg Dam stands as a testament to the importance of sustainable infrastructure for supporting biodiversity and conservation efforts. With its moderate risk assessment and commitment to wildlife habitat preservation, this dam serves as a valuable resource for the local community and a shining example of responsible stewardship of our natural resources.
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 Thyberg Dam; Marvelin -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Knife River At Hazen | 50 cfs | → |
| Square Butte Creek Below Center | 1 cfs | → |
| Spring Creek At Zap | 14 cfs | → |
| Sweetbriar Creek Nr Judson | 2 cfs | → |
| Burnt Creek Nr Bismarck | 1 cfs | → |
| Heart River Nr Mandan | 74 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Thyberg Dam; Marvelin.
Boat launches
- State Highway 200 Alternate Mercer County
- State Highway 200 Alternate Oliver County
- State Highway 200 Alternate Washburn
- Hatchery Road Mclean County
- Government Bay Boat Ramp Mclean County
- 9th Street Northwest Mclean County
Campgrounds
Paddle runs
Track Thyberg Dam; Marvelin 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 Thyberg Dam; Marvelin
Where does the data for Thyberg Dam; Marvelin 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 Thyberg Dam; Marvelin.