Dam Report

Upper Centerville Reservoir Dam dam

Iowa, USA Tr-Lower Centerville Reservoir Hazard Significant
Today high
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Tonight low
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Dam height
48ft
Hazard rating
Significant
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Upper Centerville Reservoir Dam -- None dam
Upper Centerville Reservoir Dam None · Tr-Lower Centerville Reservoir
About this dam

Upper Centerville Reservoir Dam

Upper Centerville Reservoir Dam is a historic structure located in Centerville, Iowa, completed in 1912 by designers Hall and Adams. This Earth type dam stands at a height of 48 feet and stretches 900 feet in length, serving primarily as a water supply source. With a storage capacity of 2620 acre-feet, the dam sits on the TR-Lower Centerville Reservoir on the TR-LOWER CENTERVILLE RESERVOIR stream.

Managed by the Iowa Department of Natural Resources, the dam is regulated, permitted, inspected, and enforced by state authorities to ensure its safe operation. Although classified as having a significant hazard potential, the dam is currently in satisfactory condition as per the last assessment conducted in June 2017. With a moderate risk rating, the dam's emergency action plan and risk management measures are yet to be fully detailed, highlighting the need for ongoing monitoring and preparedness in the face of potential hazards.

StateNone
River / streamTr-Lower Centerville Reservoir
NID IDIA01335
Owner typeLocal Government
Primary purposeWater Supply
Dam typeEarth
Year built1912
Dam height48 ft
Dam length900 ft
Max storage2,620 AF
Normal storage1,920 AF
Surface area103.0 ac
Drainage area2.4 sq mi
Hazard potentialSignificant
ConditionSatisfactory
Last inspectionTue, 06 Jun 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 Upper Centerville Reservoir Dam -- inflows here typically show up in storage 24-72 hours later.

Track Upper Centerville Reservoir Dam in the Snoflo app

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FAQ

About Upper Centerville Reservoir Dam

Where does the data for Upper Centerville Reservoir 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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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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