G-72 dam
G-72
G-72, also known as the C-7 Control Structure, is a crucial water management infrastructure located in Miami-Dade, Florida. Built in 1962 by the USACE, this concrete dam stands at a height of 10 feet and serves various purposes, including flood control and water storage. With a normal storage capacity of 1050 acre-feet and a maximum discharge of 75 cubic feet per second, G-72 plays a vital role in regulating water flow in the C-7 Extension Canal.
Managed by the Florida Department of Environmental Protection (FDEP), G-72 is state-regulated and undergoes regular inspections, permitting, and enforcement to ensure its structural integrity and functionality. With a low hazard potential and a risk assessment rating of "Very High (1)", this dam is classified as a critical infrastructure with high-risk management measures in place. Despite its condition assessment being listed as "Not Rated", G-72 remains a key component in the water resource management of the region.
As a part of the Jacksonville District of the USACE, G-72 is equipped with a controlled spillway and vertical lift outlet gates to efficiently manage water levels and mitigate potential risks. While specific details regarding its last inspection date and emergency action plan preparation are not provided, the structure's strategic location and design highlight its importance in the overall water resource management and climate resilience efforts in the area.
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 G-72 -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| N.W. Wellfield Canal Nr Dade Broward Levee Nr Penn | 2 cfs | → |
| Miami Canal At Nw36 St | 24 cfs | → |
| Tamiami Canal Near Coral Gables | 55 cfs | → |
| Levee 31 North Extension At 1 Mile Nr West Miami | 63 cfs | → |
| Levee 31 North Extension At 3 Mile Nr West Miami F | 93 cfs | → |
| Tamiami Canal East End 1 Mile Bridge Nr Miami | 77 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near G-72.
Boat launches
- Legion Park
- Morningside Park
- North Snapper Creek Drive 9746-9788, Miami
- Tamiami Trail, Florida
- Barry Kutun Boat Ramp At Maurice Gibb Memorial Park
- L-29 Miami-Dade County
Campgrounds
- Cb Smith Park
- Topeekeegee Yugnee County Park
- Markham Park
- Larry And Penny Thompson Park
- Easterlin Park
- Boca Chita Key Campground
Track G-72 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 G-72
Where does the data for G-72 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.