Greenwood Lake Dam dam
Greenwood Lake Dam
Greenwood Lake Dam, located in Newberry, Indiana, serves as a crucial flood risk reduction infrastructure along First Creek. Built in 1937 by the US Navy, this earth dam stands at 55 feet high, with a hydraulic height matching the structural height of 52 feet. With a storage capacity of 29,800 acre-feet and a surface area of 800 acres, the dam plays a vital role in water supply management and recreational activities in the region.
Despite its fair condition assessment, Greenwood Lake Dam is classified as having a high hazard potential, prompting regular inspections every three years. The dam features an uncontrolled spillway with a width of 540 feet to manage maximum discharge rates of up to 27,000 cubic feet per second. While the risk assessment deems it as moderate, the dam's strategic location and design make it a key asset for flood control and water resource management in Martin County, Indiana.
Owned and operated by the US Navy, Greenwood Lake Dam remains a significant piece of infrastructure that contributes to the overall water resource and climate resilience in the region. As a Federal flood risk reduction project, the dam continues to serve its primary purpose while offering additional benefits for recreation and water supply management. With a focus on safety and risk management, Greenwood Lake Dam stands as a testament to effective engineering and management practices in safeguarding communities from potential flooding events.
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 Greenwood Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| White River At Newberry | 23,000 cfs | → |
| East Fork White River At Shoals | 18,100 cfs | → |
| East Fork White River Near Bedford | 12,500 cfs | → |
| Busseron Creek Near Carlisle | 1,740 cfs | → |
| White River Above Petersburg | 1,500 cfs | → |
| Patoka River At Jasper | 675 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Greenwood Lake Dam.
Boat launches
- Martin County
- County Road 200 South, Dugger
- Greene County
- County Road 600, Dugger
- 625 North Greene County
Campgrounds
- Crane Mwr Military
- West Boggs Park
- Martin State Forest
- Montgomery Rec Park
- Sunset City Park
- Greene - Sullivan State Forest
Paddle runs
- State Road 56 Bridge To Forest Purchase Boundary At Roland, In
- State Road 337 Bridge To State Road 56 Bridge At Prospect, In
- Junction Of North/South Forks Of Lost River To State Road 337 Bridge, Approx 4 Miles Southeast Of Orleans, In
- City Limits Of English, In To Carnes Mill Site In Ne1/4ne1/4 Of Sec 13, T3s, R1w
- Carnes Mill Site To 7.65 Miles Above Confluece With Ohio River At Confluence With Turkey Creek
Track Greenwood Lake 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 Greenwood Lake Dam
Where does the data for Greenwood Lake 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 Greenwood Lake Dam.