River Cement Company Dam dam
River Cement Company Dam
The River Cement Company Dam, also known as River Cement Co. Lake Dam, is a privately owned structure located in Crystal City, Missouri. Built in 1965, this rockfill dam stands at a height of 57 feet and stretches 605 feet in length, with a storage capacity of 595 acre-feet. Situated on a tributary to the Mississippi River, the dam serves various purposes, including flood control and water supply.
Managed by the DAM and Reservoir Safety Program in Missouri, the River Cement Company Dam has a high hazard potential and is inspected every two years to ensure its structural integrity. Despite its age, the dam is deemed to be in satisfactory condition as of the last assessment in 2007. With a moderate risk assessment rating, appropriate risk management measures are in place to mitigate any potential hazards and ensure the safety of the surrounding area.
With a valve outlet gate and an uncontrolled spillway, the River Cement Company Dam plays a crucial role in regulating water flow and storage in the region. Its location in Jefferson County, Missouri, makes it a significant feature within the local water resource infrastructure, highlighting the importance of proper maintenance and oversight to safeguard against any potential risks or emergencies.
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 River Cement Company Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Big River Near Richwoods | 346 cfs | → |
| Mattese Creek Near Mattese | 4 cfs | → |
| Martigney Creek Near Arnold | 2 cfs | → |
| Big River Below Desloge | 80 cfs | → |
| Big River At Byrnesville | 361 cfs | → |
| Richland Creek Near Hecker | 51 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near River Cement Company Dam.
Boat launches
- Choctaw Drive St. Francois County
- Williamson Road Oakville
- Lemay Ferry Road Oakville
- Ellis Grove Parkway Jefferson County
- Phegley Resort Lane Randolph County
- Allen Road 204, Fenton
Campgrounds
- St. Francois State Park
- Washington State Park
- Hawn State Park
- St. Joe State Park
- Fort Kaskaskia State Park
Fishing spots
Track River Cement Company Dam 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 River Cement Company Dam
Where does the data for River Cement Company 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 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 River Cement Company Dam.