Dam Report

Floodwater Ret Dam Ss-8.5 dam

Colorado, USA South Platte Hazard Low
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Dam height
17ft
Hazard rating
Low
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Floodwater Ret Dam Ss-8.5 -- None dam
Floodwater Ret Dam Ss-8.5 None · South Platte
About this dam

Floodwater Ret Dam Ss-8.5

Floodwater Ret Dam Ss-8.5, also known as Debris Drainage Dam Ss-8.5, is a local government-owned structure in Sedgwick, Colorado, designed by USDA NRCS to reduce flood risk along the South Platte River. Completed in 1990, this earth dam stands at a height of 17 feet and has a hydraulic height of 12 feet, with a structural height of 21 feet. Its primary purpose is flood risk reduction, as well as debris control, and it has a maximum storage capacity of 102 acre-feet.

Located in Ovid, Colorado, this dam spans a length of 1000 feet and features an uncontrolled spillway with a width of 52 feet. Despite its low hazard potential and satisfactory condition assessment, it is subject to state regulation, inspection, and enforcement by the Colorado Department of Water Resources. The dam has undergone its last inspection in September 2015, with a recommended inspection frequency of every 6 years to ensure its continued safety and effectiveness in mitigating flood risks in the region.

Overall, Floodwater Ret Dam Ss-8.5 plays a crucial role in protecting the surrounding area from flooding, with a moderate risk assessment rating of 3. While it may not be a high-risk structure, its strategic placement along the South Platte River underscores its importance in managing water resources and climate-related hazards in Sedgwick County. As a key component of the local flood control system, this dam serves as a vital infrastructure asset in safeguarding the community against potential water-related disasters.

StateNone
River / streamSouth Platte
NID IDCO02791
Owner typeLocal Government
Primary purposeFlood Risk Reduction
Dam typeEarth
Year built1990
Dam height17 ft
Dam length1,000 ft
Max storage102 AF
Normal storage61 AF
Surface area12.0 ac
Hazard potentialLow
ConditionSatisfactory
Last inspectionTue, 29 Sep 2015 00:00:00 GMT

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.
Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Floodwater Ret Dam Ss-8.5 -- inflows here typically show up in storage 24-72 hours later.

Track Floodwater Ret Dam Ss-8.5 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.

FAQ

About Floodwater Ret Dam Ss-8.5

Where does the data for Floodwater Ret Dam Ss-8.5 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.

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