Indigo Lake Dam dam
Indigo Lake Dam
Indigo Lake Dam, located in Montgomery County, Texas, is a privately owned structure designed by Turner Collie and Braden Inc. This earth dam, completed in 1995, serves primarily for recreation purposes, with a maximum storage capacity of 4,773 acre-feet and a normal storage of 1,157 acre-feet. The dam spans 2,100 feet in length and stands at a height of 38 feet, with an uncontrolled spillway width of 250 feet on the Log Gully river.
The dam boasts a satisfactory condition assessment as of June 2014, with regular inspections every 5 years to ensure its safety and functionality. With a moderate risk assessment rating of 3, the dam's hazard potential is not available, indicating a relatively low level of risk. The emergency action plan (EAP) status is not specified, and there is no designated DSAC assigned date, suggesting potential areas for improvement in emergency preparedness and risk management.
Overall, Indigo Lake Dam presents an intriguing case study for water resource and climate enthusiasts, showcasing the intersection of engineering design, recreational use, and regulatory oversight in water infrastructure. As a key feature within the Fort Worth District, this dam serves as a vital component of water management in the region, highlighting the importance of proactive maintenance and risk mitigation strategies in ensuring the safety and longevity of such critical structures.
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 Indigo Lake Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Spring Ck Nr Tomball | 18 cfs | → |
| Dry Ck At Fm 2978 | 2 cfs | → |
| Little Cypress Ck Nr Cypress | 19 cfs | → |
| Spring Ck At Kuykendahl Rd | 59 cfs | → |
| Willow Ck Nr Tomball | 18 cfs | → |
| Cypress Ck At House-Hahl Rd Nr Cypress | 110 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Indigo Lake Dam.
Boat launches
- Edgewater Drive 32210, Montgomery County
- Lake Woodlands Drive The Woodlands
- Boat Launch The Woodlands
- Piney Shores Boat Ramp
- Conroe Boat Ramp 830
- Scotts Ridge Swim Area
Campgrounds
- Spring Creek Park
- Texas Rennaissance Festival - Loud - Barbarian Camping
- Texas Rennaissance Festival - Quiet - Family Camping
- Grizzly Pines - Gay Campground
- End Of The Road Spot
- Kelly's Pond Campground
Fishing spots
Track Indigo 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 Indigo Lake Dam
Where does the data for Indigo 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 Not Available 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 Indigo Lake Dam.