Alum Creek Upground Reservoir No. 2 dam
Alum Creek Upground Reservoir No. 2
Alum Creek Upground Reservoir No. 2, also known as McNamara Reservoir, is a vital water supply facility located in Lewis Center, Ohio. Constructed in 2004 by BBC&M Engineering, Inc., this public utility reservoir plays a crucial role in providing water to the community. With a dam height of 36 feet and a storage capacity of 1912 acre-feet, this earth dam reservoir has a surface area of 52 acres and is regulated by the Department of Natural Resources in Ohio.
Situated off-stream from the Alum Creek river, this reservoir serves as a key source of water for the region, ensuring a reliable water supply for residents. Despite being classified as having a high hazard potential, the reservoir is in fair condition as of the last assessment in 2016. With regular inspections and enforcement measures in place, the facility is well-maintained to meet the water supply needs of the community.
Managed by the Louisville District of the US Army Corps of Engineers, Alum Creek Upground Reservoir No. 2 is an essential infrastructure for water resource management in Delaware County, Ohio. With a focus on water supply purposes, this reservoir continues to play a critical role in safeguarding water resources and supporting the local community's needs for a sustainable future.
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.
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.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
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.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Alum Creek Upground Reservoir No. 2 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Alum Creek At Africa Oh | 19 cfs | → |
| Olentangy River Near Worthington Oh | 983 cfs | → |
| Scioto River Below O Shaughnessy Dam Nr Dublin Oh | 2,240 cfs | → |
| Big Walnut Creek At Central College Oh | 180 cfs | → |
| Big Walnut Creek At Sunbury Oh | 1,090 cfs | → |
| Mill Creek Near Bellepoint Oh | 971 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Alum Creek Upground Reservoir No. 2.
Boat launches
- Alum Creek State Park - New Galena
- Berlin Township
- Alum Creek State Park - Cheshire
- Hoover Reservoir - Oxbow Road Launch Ramp
- Riverside Drive Concord Township
- Hoover Reservoir - Baldridge Boat Ramp
Campgrounds
- Recreation Unlimited
- Summer Camp Job
- Camp Marengo
- Camp Ken-Jockety & Elam Environmental Center
- Lazy River At Granville
Track Alum Creek Upground Reservoir No. 2 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.
About Alum Creek Upground Reservoir No. 2
Where does the data for Alum Creek Upground Reservoir No. 2 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.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Alum Creek Upground Reservoir No. 2.