Dam Report

Metzger Upground Reservoir dam

Ohio, USA Ottawa River - Offstream Hazard High
Today high
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Tonight low
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Dam height
45ft
Hazard rating
High
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Metzger Upground Reservoir -- None dam
Metzger Upground Reservoir None · Ottawa River - Offstream
About this dam

Metzger Upground Reservoir

Metzger Upground Reservoir, located in Lima, Ohio, is a vital water supply infrastructure owned by the local government. Built in 1946 and regulated by the Department of Natural Resources, this reservoir serves the primary purpose of water supply for the area. With a dam height of 45 feet and a storage capacity of 4346 acre-feet, it plays a crucial role in meeting the water needs of the community.

Designed by JONES & HENRY ENGINEERS LTD., TOLEDO, OHIO, this Earth-type dam spans over 10,000 feet in length and covers a surface area of 156 acres. The reservoir has a high hazard potential but is currently in fair condition, with the last inspection conducted in May 2017. With a maximum discharge capacity of 800 cubic feet per second, this reservoir ensures a reliable water source for the residents of Allen County, Ohio.

Despite its age, Metzger Upground Reservoir continues to be a reliable water supply source, meeting the state's regulatory standards for inspection, permitting, and enforcement. With its strategic location along the Ottawa River - Offstream, this reservoir remains a critical infrastructure for the region's water resource management and climate resilience efforts. As climate change impacts water availability, the role of reservoirs like Metzger becomes increasingly significant in ensuring water security for communities in Ohio.

StateNone
River / streamOttawa River - Offstream
NID IDOH00521
Owner typeLocal Government
Primary purposeWater Supply
Dam typeEarth
Year built1946
Dam height45 ft
Dam length10,353 ft
Max storage4,346 AF
Normal storage3,719 AF
Surface area156.0 ac
Drainage area0.3 sq mi
Hazard potentialHigh
ConditionFair
Last inspectionWed, 10 May 2017 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 Metzger Upground Reservoir -- inflows here typically show up in storage 24-72 hours later.

Track Metzger Upground Reservoir in the Snoflo app

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FAQ

About Metzger Upground Reservoir

Where does the data for Metzger Upground Reservoir 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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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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