Lake Jacomo Dam dam
Lake Jacomo Dam
Lake Jacomo Dam, located in Lees Summit, Missouri, is a vital earth dam constructed in 1956 by the renowned engineering firm Black and Veatch. The dam serves primarily for recreation purposes and holds a maximum storage capacity of 38,620 acre-feet, with a normal storage of 25,730 acre-feet. The dam spans 1,550 feet in length and stands at a height of 74 feet, overseeing the East Fork Little Blue River.
Managed by the local government and regulated by the DAM AND RESERVOIR SAFETY PROG, Lake Jacomo Dam poses a high hazard potential due to its critical role in flood control and water supply management. Despite this, the dam is reported to be in satisfactory condition as of the last assessment in 2007, with regular inspections conducted every two years to ensure its structural integrity. While the risk assessment categorizes the dam as moderate, measures have been implemented to mitigate any potential risks and ensure the safety of the surrounding community.
With a surface area of 1,221 acres and a drainage area of 16,750 acres, Lake Jacomo Dam stands as a testament to effective water resource management and climate resilience efforts in Missouri. As a popular recreational spot, the dam not only provides essential benefits for flood protection and water supply but also offers a serene environment for outdoor enthusiasts to enjoy nature's beauty while appreciating the engineering marvel that is Lake Jacomo Dam.
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 Lake Jacomo Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| East Fork Little Blue River Nr Blue Springs | 10 cfs | → |
| Little Blue River Near Lake City | 67 cfs | → |
| Blue River At Stadium Drive In Kc | 93 cfs | → |
| Blue River At Kansas City | 74 cfs | → |
| Brush Creek At Ward Parkway In Kansas City | 2 cfs | → |
| Blue River At Blue Ridge Blvd Ext In Kc | 25 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Jacomo Dam.
Boat launches
- Lee's Summit
- Southeast Raytown Road Lee's Summit
- South Lake Road Cass County
- Mo 291 Sugar Creek
- Cass County
- River Front Park Kansas City
Track Lake Jacomo 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 Lake Jacomo Dam
Where does the data for Lake Jacomo 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 Lake Jacomo Dam.