Dam Report

Bellevue Upground Reservoir No. 4 dam

Ohio, USA Miller Ditch - Offstream Hazard High
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Dam height
18ft
Hazard rating
High
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Bellevue Upground Reservoir No. 4 -- None dam
Bellevue Upground Reservoir No. 4 None · Miller Ditch - Offstream
About this dam

Bellevue Upground Reservoir No. 4

Bellevue Upground Reservoir No. 4, located in Huron County, Ohio, is a vital water supply resource designed by William G. Clark and completed in 1919. This Earth dam stands at a height of 18 feet and has a storage capacity of 544 acre-feet, serving the city of Bellevue and surrounding areas. With a surface area of 32.4 acres and a drainage area of 0.05 square miles, this reservoir plays a crucial role in water management and supply for the region.

Despite its historical significance, Bellevue Upground Reservoir No. 4 currently faces challenges in terms of its condition assessment, which is rated as poor with a high hazard potential. The last inspection in June 2018 highlighted the need for improvements and maintenance to ensure the safety and efficiency of the dam. The Department of Natural Resources in Ohio regulates this reservoir, highlighting the importance of state oversight and enforcement in maintaining the integrity of water infrastructure in the region.

Given its critical role in water supply, it is essential for authorities and stakeholders to address the maintenance and condition assessment issues facing Bellevue Upground Reservoir No. 4. With a focus on risk management measures and improvements to its emergency action plan, this reservoir can continue to provide a reliable water source for the community while ensuring the safety and security of its infrastructure in the face of changing climate conditions.

StateNone
River / streamMiller Ditch - Offstream
NID IDOH00806
Owner typeLocal Government
Primary purposeWater Supply
Dam typeEarth
Year built1919
Dam height18 ft
Dam length4,593 ft
Max storage544 AF
Normal storage426 AF
Surface area32.4 ac
Drainage area0.1 sq mi
Hazard potentialHigh
ConditionPoor
Last inspectionTue, 19 Jun 2018 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 Bellevue Upground Reservoir No. 4 -- inflows here typically show up in storage 24-72 hours later.

Track Bellevue Upground Reservoir No. 4 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 Bellevue Upground Reservoir No. 4

Where does the data for Bellevue Upground Reservoir No. 4 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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