Dam Report

Orchards Block 92 Dam dam

Washington, USA Unnamed Tr - Snake R. Hazard Low
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Dam height
22ft
Hazard rating
Low
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Orchards Block 92 Dam -- None dam
Orchards Block 92 Dam None · Unnamed Tr - Snake R.
About this dam

Orchards Block 92 Dam

Orchards Block 92 Dam, located in Walla Walla, Washington, was completed in 1992 and serves the primary purpose of irrigation. This earth dam, with a hydraulic height of 22 feet and a length of 475 feet, holds a maximum storage capacity of 54 acre-feet and a normal storage capacity of 45 acre-feet. The dam is situated on the Unnamed Tr - Snake R. river or stream and covers a surface area of 2.8 acres with a drainage area of 0.01 square miles.

Managed by a private owner, the Orchards Block 92 Dam is regulated by the Washington Department of Ecology and undergoes regular inspections and enforcement to ensure its structural integrity. With a low hazard potential, the dam has not been rated for condition assessment, and emergency action plans are currently not available. Despite this, the dam continues to play a crucial role in supporting irrigation activities in the region and maintaining water resources for agricultural purposes.

In the event of any potential risks or incidents, the lack of detailed emergency preparedness and risk assessment measures for the Orchards Block 92 Dam raises concerns for the safety and management of the structure. As a vital component of the local water resource infrastructure, further attention and investment may be needed to enhance the dam's resilience and ensure sustainable water management practices in the area.

StateNone
River / streamUnnamed Tr - Snake R.
NID IDWA01861
Owner typePrivate
Primary purposeIrrigation
Dam typeEarth
Year built1992
Dam length475 ft
Max storage54 AF
Normal storage45 AF
Surface area2.8 ac
Drainage area0.0 sq mi
Hazard potentialLow
ConditionNot Rated
Last inspectionMon, 12 May 2003 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 Orchards Block 92 Dam -- inflows here typically show up in storage 24-72 hours later.

Track Orchards Block 92 Dam in the Snoflo app

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FAQ

About Orchards Block 92 Dam

Where does the data for Orchards Block 92 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 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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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

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