Dam Report

Lake Halice Dam dam

Iowa, USA Tr- North Walnut Cr. Hazard Significant
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Dam height
27ft
Hazard rating
Significant
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Lake Halice Dam -- None dam
Lake Halice Dam None · Tr- North Walnut Cr.
About this dam

Lake Halice Dam

Lake Halice Dam, located in Urbandale, Iowa, is a private-owned structure regulated by the Iowa Department of Natural Resources. Completed in 1961, this earth dam stands at 27 feet tall and spans a length of 1100 feet, creating a reservoir with a storage capacity of 120 acre-feet. The primary purpose of this dam is for recreation, offering a surface area of 9 acres for water enthusiasts to enjoy activities like boating and fishing.

Despite its significant hazard potential, Lake Halice Dam has been assessed as satisfactory in condition, with inspections carried out every five years to ensure its safety. The dam features an uncontrolled spillway with a width of 3 feet and is situated on the North Walnut Creek tributary. The risk assessment for this structure is moderate, emphasizing the importance of ongoing risk management measures to mitigate any potential threats and ensure the safety of downstream communities.

For water resource and climate enthusiasts, Lake Halice Dam serves as a fascinating case study of a privately-owned recreational dam in Iowa. With its location in the Rock Island District and under the jurisdiction of the state regulatory agency, this dam highlights the importance of proper maintenance and inspection protocols to safeguard both the environment and public safety. As climate change continues to impact water resources, understanding the resilience of structures like Lake Halice Dam becomes increasingly crucial in adapting to future challenges and ensuring sustainable water management practices.

StateNone
River / streamTr- North Walnut Cr.
NID IDIA02193
Owner typePrivate
Primary purposeRecreation
Dam typeEarth
Year built1961
Dam height27 ft
Dam length1,100 ft
Max storage120 AF
Normal storage75 AF
Surface area9.0 ac
Drainage area0.1 sq mi
Hazard potentialSignificant
ConditionSatisfactory
Last inspectionThu, 28 May 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 Lake Halice Dam -- inflows here typically show up in storage 24-72 hours later.

Track Lake Halice 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 Lake Halice Dam

Where does the data for Lake Halice 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 Significant 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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