Lake Horicon Dam dam
Lake Horicon Dam
Lake Horicon Dam, located in Manchester, New Jersey, serves as a vital water resource for the surrounding area. Completed in 1942, this earth dam stands at a height of 7 feet and has a storage capacity of 114 acre-feet. With a primary purpose of recreation, the dam creates a serene 48-acre lake that is a popular destination for water enthusiasts and nature lovers alike.
Managed by the local government and regulated by the New Jersey Department of Environmental Protection, Lake Horicon Dam ensures the safety and sustainability of the Union Branch Toms River watershed. Despite its low hazard potential, the dam undergoes regular inspections every four years to maintain its structural integrity. The dam's emergency action plan status and risk assessment measures are currently not rated, highlighting the need for continued monitoring and preparedness in the face of changing climate patterns and potential natural disasters.
As a key component of the water infrastructure in Ocean County, Lake Horicon Dam plays a crucial role in flood control, water supply management, and ecosystem preservation. Its location within the LAKEHURST BOROUGH contributes to the overall resilience of the region against environmental challenges. With ongoing efforts to improve the dam's emergency response protocols and risk management strategies, Lake Horicon Dam stands as a testament to the intersection of water resource management and climate resilience in New Jersey.
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 Horicon Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Toms River Near Toms River Nj | 93 cfs | → |
| North Branch Metedeconk River Near Lakewood Nj | 21 cfs | → |
| Cedar Creek At Lanoka Harbor Nj | 73 cfs | → |
| Mcdonalds Branch In Lebanon State Forest Nj | 1 cfs | → |
| Manasquan River At Squankum Nj | 27 cfs | → |
| Manasquan R Nr Allenwood Nj | 12 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Lake Horicon Dam.
Boat launches
- Garfield Avenue 230, Toms River
- Bayview Place Ocean Gate
- Stockton Avenue Manasquan
- 7th Avenue Asbury Park
- West 81st Street 99, Harvey Cedars
- West 75th Street 99, Harvey Cedars
Track Lake Horicon 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 Horicon Dam
Where does the data for Lake Horicon 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 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 Lake Horicon Dam.