Mathiesen Dam 2720 dam
Mathiesen Dam 2720
Mathiesen Dam 2720, located in Herman, Nebraska, is a privately-owned structure designed by USDA NRCS with a primary purpose of flood risk reduction. Completed in 2003, this earth dam stands at a height of 33 feet with a hydraulic height of 32 feet and a structural height of 37 feet. It has a length of 425 feet and provides a maximum storage capacity of 21 acre-feet, with a normal storage capacity of 6 acre-feet.
Situated on TR-New York Creek in Washington County, Nebraska, Mathiesen Dam 2720 has a low hazard potential and is in satisfactory condition as of the last inspection in May 2016. The dam covers a surface area of 2 acres and drains a 0.3 square mile area, with a maximum discharge rate of 142 cubic feet per second. It is regulated by the Nebraska Department of Natural Resources with state permitting, inspection, and enforcement in place to ensure its safety and effectiveness in flood risk management.
With its strategic location, sound design, and regulatory oversight, Mathiesen Dam 2720 serves as a vital infrastructure contributing to flood risk reduction efforts in the region. Its construction reflects a commitment to water resource management and climate resilience, showcasing the importance of private initiatives in safeguarding communities against natural disasters. As water resource and climate enthusiasts, the significance of Mathiesen Dam 2720 lies in its role as a key asset in enhancing the resilience of Nebraska's water infrastructure and protecting the surrounding areas from potential flood events.
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 Mathiesen Dam 2720 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Maple Creek Near Nickerson | 44 cfs | → |
| Logan Creek Near Uehling | 215 cfs | → |
| Platte River Nr Leshara | 1,750 cfs | → |
| Elkhorn River At Waterloo | 1,030 cfs | → |
| Big Papillion Cr | 38 cfs | → |
| Soldier River At Pisgah | 125 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mathiesen Dam 2720.
Track Mathiesen Dam 2720 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 Mathiesen Dam 2720
Where does the data for Mathiesen Dam 2720 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 Mathiesen Dam 2720.