Allen Dam dam
Allen Dam
Allen Dam, located in Franklin, North Carolina, is a privately owned structure regulated by the NCDEQ Dam Safety Program. This earth dam serves multiple purposes, including fire protection and creating a small fish pond. With a hydraulic height of 17.5 feet and a structural height of 19 feet, the dam spans 500 feet in length and has a storage capacity of 30 acre-feet.
Despite its fair condition assessment as of January 2019, Allen Dam is classified as having a significant hazard potential. Regular inspections are conducted every two years to ensure its safety and compliance with regulatory standards. The dam's emergency action plan status and risk management measures are currently undetermined, highlighting the need for ongoing monitoring and preparedness in case of any unforeseen events.
Water resource and climate enthusiasts will appreciate the vital role that Allen Dam plays in the local ecosystem, providing both water storage for fire protection and a habitat for small fish. As a privately owned structure in a state-regulated environment, the dam symbolizes the delicate balance between human development and environmental stewardship. Its strategic location on Cedar Creek-Tr contributes to the overall water management system in the region, making it a valuable asset that requires consistent monitoring and maintenance to ensure its long-term sustainability.
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 Allen Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Neuse River Near Falls | 123 cfs | → |
| Tar River Near Tar River | 3 cfs | → |
| Tar R At Us 401 At Louisburg | 18 cfs | → |
| Knap Of Reeds Creek Near Butner | 7 cfs | → |
| Marsh C Nr New Hope | 1 cfs | → |
| Ellerbe Creek Near Gorman | 12 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Allen Dam.
Boat launches
- Falls Lake Trail Wake County
- Duck Cove Trail Wake County
- Barton's Creek Boat Ramp
- Creedmoor Road 13900, Town Of Wake Forest
- Ledge Rock Boat Ramp, Creedmoor
- Durham County
Campgrounds
- Holly Point - Falls Lake
- Shoreline Campground
- Overlook Campground
- Two Oaks Campground
- Shortleaf Pine Campground
- Bootleg Point Campground
Track Allen 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 Allen Dam
Where does the data for Allen 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 Significant 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 Allen Dam.