L.P.Hill Dam 1 dam
L.P.Hill Dam 1
L.P. Hill Dam 1, also known as Hill Dam, is a state-owned structure located in Columbia, Florida, near Lake City. Built in 1966 by USDA NRCS, this earth dam stands at 20 feet in height and spans 910 feet in length. Its primary purpose is irrigation, with a storage capacity of 240 acre-feet and a surface area of 240 acres.
Despite its vital role in providing water for irrigation, fire protection, and wildlife habitats, L.P. Hill Dam 1 has a high hazard potential and is currently rated as unsatisfactory in condition. The last inspection in 2014 revealed the need for improvements to ensure the dam's safety and functionality. The dam's spillway width is noted at 50 feet, but further details on risk assessment and management measures are yet to be provided.
Water resource and climate enthusiasts monitoring L.P. Hill Dam 1 should be aware of its critical role in water management in the region. With its location on TR-Alligator Lake and a drainage area of 0.75 square miles, the dam plays a crucial part in regulating water flow and providing essential irrigation for agricultural activities in the area. However, ongoing efforts to address its unsatisfactory condition and high hazard potential are needed to ensure its long-term sustainability and safety for the surrounding community.
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 L.P.Hill Dam 1 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Suwannee River At White Springs | 28 cfs | → |
| Santa Fe River At O'Leno State Park Fla | 33 cfs | → |
| Ichetucknee R @ Hwy27 Nr Hildreth | 224 cfs | → |
| Santa Fe River At Worthington Springs | · | → |
| Santa Fe River At River Rise Nr High Springs | 40 cfs | → |
| Santa Fe River Near Fort White | 594 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near L.P.Hill Dam 1.
Boat launches
- Southeast Evergreen Drive 358, Lake City
- Southeast Boat Ramp Glen 120, Lake City
- Southwest Baya Drive 578, Lake City
- Ocean Pond Boat Ramp
- Northwest 2nd Avenue 265, Lake Butler
- Cone Bridge Boat Ramp
Campgrounds
- Hog Pen Landing
- Ocean Pond
- The Group Landing
- Ocean Pond Campground
- Cobb Hunt Camp
- Stephen Foster State Park
Fishing spots
Paddle runs
- Ichetucknee Headspring To The First Powerline Crossing Over Ichetucknee River
- The First Powerline Crossing The Ichetuckee River To The Confluence With The Santa Fe River, Down The Santa Fe River To The Suwannee River
- The Little River Springs At River Mile 81 To The Mouth Of The River At The Gulf Of Mexico
- The Confluence Of The North Prong And Middle Prong To Trader's Hill
- State Highway 6 To The Confluence With The Suwannee River
Track L.P.Hill Dam 1 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 L.P.Hill Dam 1
Where does the data for L.P.Hill Dam 1 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 L.P.Hill Dam 1.