Dam Report

Chiwapa Ws Str 3 Dam dam

Mississippi, USA Webster Creek Hazard High
Today high
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Tonight low
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Dam height
34ft
Hazard rating
High
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Chiwapa Ws Str 3 Dam -- None dam
Chiwapa Ws Str 3 Dam None · Webster Creek
About this dam

Chiwapa Ws Str 3 Dam

Chiwapa WS Str 3 Dam, also known as Pontotoc Lake Dam, is a vital water resource structure located in Pontotoc, Mississippi. Owned by the local government and designed by the USDA NRCS, this earth dam serves the primary purpose of flood risk reduction for the Webster Creek watershed. Completed in 1969, the dam stands at a height of 33.5 feet and has a storage capacity of 1436 acre-feet, with a normal storage level of 353 acre-feet over a surface area of 53.5 acres.

The dam's high hazard potential is managed through regular inspections, with a satisfactory condition reported in the last assessment in February 2016. The dam features an uncontrolled spillway and outlet gates, with a maximum discharge capacity of 7959 cubic feet per second. While the risk assessment indicates a moderate threat level, the dam's emergency action plan and inundation maps are currently in review to ensure preparedness for any potential emergencies. With its critical role in flood risk reduction and water resource management, Chiwapa WS Str 3 Dam is a key infrastructure contributing to the resilience of the local community and surrounding environment in Mississippi.

StateNone
River / streamWebster Creek
NID IDMS00605
Owner typeLocal Government
Primary purposeFlood Risk Reduction
Dam typeEarth
Year built1969
Dam height34 ft
Dam length1,310 ft
Max storage1,436 AF
Normal storage353 AF
Surface area53.5 ac
Drainage area1.5 sq mi
Hazard potentialHigh
ConditionSatisfactory
Last inspectionTue, 16 Jun 2020 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 Chiwapa Ws Str 3 Dam -- inflows here typically show up in storage 24-72 hours later.

Track Chiwapa Ws Str 3 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.

FAQ

About Chiwapa Ws Str 3 Dam

Where does the data for Chiwapa Ws Str 3 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 High 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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