Lake Hollenbeck Dam dam
Lake Hollenbeck Dam
Lake Hollenbeck Dam, located in Cape Girardeau, Missouri, is a rockfill structure designed by Carl Walfers and completed in 1964. With a height of 43 feet and a length of 760 feet, the dam serves primarily for recreational purposes, offering a surface area of 27 acres and a storage capacity of 580 acre-feet. The dam is regulated by the DAM AND RESERVOIR SAFETY PROG, ensuring its inspection, permitting, and enforcement comply with state regulations.
Despite its satisfactory condition assessment, Lake Hollenbeck Dam poses a high hazard potential, indicating the need for careful monitoring and risk management measures. The dam features an uncontrolled spillway type and is associated with a tributary to Cape LaCroix Creek, with a drainage area of 166 square miles. Its moderate risk assessment suggests a balanced level of concern for potential safety hazards, warranting continued attention to its upkeep and maintenance to ensure safe operation and protection of surrounding areas and communities.
In the hands of a private owner, Lake Hollenbeck Dam stands as a recreational gem in the region, offering not only a picturesque getaway but also a reminder of the delicate balance between water resource management and environmental conservation in the face of changing climate patterns. As enthusiasts of water resources and climate, the allure of Lake Hollenbeck Dam lies in its complex interplay of engineering marvel, recreational haven, and potential risk, inviting further exploration and understanding of the dynamic relationship between human interventions and natural ecosystems.
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 Hollenbeck Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Mississippi River At Thebes | 269,000 cfs | → |
| Castor River At Zalma | 158 cfs | → |
| Big Muddy River At Rte 127 At Murphysboro | 523 cfs | → |
| South Fork Saline Creek Near Perryville | 21 cfs | → |
| Cache River At Forman | 3 cfs | → |
| Little River Ditch No. 1 Near Morehouse | 219 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Hollenbeck Dam.
Boat launches
- Red Star Access
- 2nd Street Thebes
- Clear Creek Levee Road Union County
- Cape Girardeau County
- State Highway U Cape Girardeau County
- Front Street 677, Grand Tower
Campgrounds
- Trail Of Tears State Park
- Pine Hills Campground
- Pine Hills
- Lake Girardeau Conservation Area - Mdc
- Trail Of Tears State Forest
- General Watkins Conservation Area - Mdc
Paddle runs
- 1 Mile West Of Alto Pass, Il To 1/2 Mile South Of Confluence With Clear Creek, West Of Trail Of Tears State Forest
- 1/2 Mile Downstream Of Confluence With Kinkaid Creek To Confluence With Mississippi River, Approx 4 Miles South Of Grand Tower, Il
- Forest Boundary At North Section Line Of Sec 4, T33n, R5e To Forest Boundary At South Section Line Of Sec 35, T32n, R5e
Track Lake Hollenbeck 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 Hollenbeck Dam
Where does the data for Lake Hollenbeck 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 Hollenbeck Dam.