Old Mill Dam (In-Channel) dam
Old Mill Dam (In-Channel)
Old Mill Dam (In-Channel), also known as Charles Mill Dam, is a recreational structure located on the Mississinewa River in Grant County, Indiana. Built in 1938, this dam stands at a height of 10 feet and spans 350 feet in length, providing a storage capacity of 230 acre-feet. Despite its historical significance and recreational value, the dam is currently in poor condition and poses a low hazard potential.
Managed by the local government and regulated by the Indiana Department of Natural Resources (IDNR), Old Mill Dam serves primarily for recreational purposes. While it lacks a spillway and outlet gates, the dam has undergone its last inspection in February 2016, with a scheduled inspection frequency of every 5 years. The risk assessment for the dam has been classified as high, warranting attention to its condition and potential management measures to ensure public safety and environmental preservation.
Water resource and climate enthusiasts interested in the preservation and management of dams like Old Mill Dam (In-Channel) on the Mississinewa River can draw attention to the need for regular inspections, maintenance, and risk assessments. With its historical significance and recreational value, efforts to improve the dam's condition and address any potential hazards can contribute to the sustainable use of water resources and the protection of the surrounding ecosystem. Collaboration between local government, regulatory agencies, and stakeholders is essential to ensure the long-term safety and functionality of this iconic structure.
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 Old Mill Dam (In-Channel) -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Mississinewa River At Marion | 231 cfs | → |
| Salamonie River Near Warren | 66 cfs | → |
| Wildcat Creek Near Jerome | 45 cfs | → |
| Wabash River At Wabash | 487 cfs | → |
| Pipe Creek At Frankton | 33 cfs | → |
| Wabash River At Peru | 907 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Old Mill Dam (In-Channel).
Boat launches
- South 700 West 5688, Andrews
- Tree Trail, Andrews
- Bloodroot Trail, Andrews
- Wabash County
- County Road 250 South 6324-6398, Lagro
- 4th Street 100-154, Fairmount
Campgrounds
- Mt. Etna State Rec Area
- Lost Bridge State Rec Area - Salamonie Lake
- Salamonie State Lake - Lost Bridge West Sra
- Mississinewa Lake - Miami Recreation Area
- Wabash River Camp
- Wabash City Rv Park
Fishing spots
Track Old Mill Dam (In-Channel) 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 Old Mill Dam (In-Channel)
Where does the data for Old Mill Dam (In-Channel) 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.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Old Mill Dam (In-Channel).