Dam Report

Lacamas & Round Lakes Upper Dam dam

Washington, USA Lacamas Creek Hazard High
Today high
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Tonight low
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Dam height
28ft
Hazard rating
High
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Lacamas & Round Lakes Upper Dam -- None dam
Lacamas & Round Lakes Upper Dam None · Lacamas Creek
About this dam

Lacamas & Round Lakes Upper Dam

Lacamas & Round Lakes Upper Dam, located in Camas, Washington, was completed in 1936 and serves as a crucial water supply source for the area. The dam, with a hydraulic height of 28 feet, holds a storage capacity of 6800 acre-feet and covers a surface area of 350 acres. It is primarily designed as a buttress dam, supported by a multi-arch core type and built on a soil foundation.

Managed by the Washington Department of Ecology, the dam is regulated and inspected regularly to ensure its safety and efficiency. With a high hazard potential due to its location on Lacamas Creek, the dam is assessed to be in satisfactory condition as of April 2018. Emergency action plans are in place, though details of their last revision and effectiveness meeting guidelines are not specified in available data.

The surrounding area offers recreational opportunities, in addition to its water supply function. The dam, situated in a scenic location, plays a vital role in maintaining water levels for both practical and leisure purposes. Climate and water resource enthusiasts will appreciate the significance of Lacamas & Round Lakes Upper Dam as a key infrastructure supporting the region's water needs while contributing to environmental conservation efforts.

StateNone
River / streamLacamas Creek
NID IDWA00118
Owner typeLocal Government
Primary purposeWater Supply
Dam typeButtress
Year built1936
Max storage6,800 AF
Normal storage6,100 AF
Surface area350.0 ac
Drainage area64.7 sq mi
Hazard potentialHigh
ConditionSatisfactory
Last inspectionThu, 14 Sep 2017 12:00:00 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 Lacamas & Round Lakes Upper Dam -- inflows here typically show up in storage 24-72 hours later.

Track Lacamas & Round Lakes Upper 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 Lacamas & Round Lakes Upper Dam

Where does the data for Lacamas & Round Lakes Upper 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.