Dam Report

Holloway Lake dam

Texas, USA Tr-Little Cypress Bayou Hazard Not Available
Today high
--
Tonight low
--
Dam height
18ft
Hazard rating
Not Available
Loading current conditions…
Loading next 24 hours…
Loading 7-day outlook…
Holloway Lake -- None dam
Holloway Lake None · Tr-Little Cypress Bayou
About this dam

Holloway Lake

Holloway Lake in Gregg, Texas is a privately owned irrigation reservoir completed in 1959 with a storage capacity of 180 acre-feet. The dam is an earth structure with a height of 18 feet and a length of 750 feet, serving primarily for agricultural purposes. Located on the TR-Little Cypress Bayou, this reservoir plays a crucial role in providing water for irrigation in the region.

Despite its relatively small size, Holloway Lake has a high hazard potential and is classified as having a risk level of 2, indicating the need for careful monitoring and maintenance. While the dam has not been rated for its condition, it is important for water resource and climate enthusiasts to stay informed about the ongoing management and risk assessment measures in place for this structure. With no spillway and limited discharge capacity, the reservoir's ability to handle extreme weather events and potential flood risks is a critical concern for the surrounding area.

With no federal oversight or funding, Holloway Lake is solely regulated and inspected by the state of Texas. While it may not be as well-known as larger reservoirs, its significance in providing essential water resources for irrigation underscores the importance of maintaining its structural integrity and ensuring proper risk management strategies are in place. Water resource and climate enthusiasts should pay attention to developments surrounding this reservoir to understand the challenges and opportunities it presents for sustainable water management in the region.

StateNone
River / streamTr-Little Cypress Bayou
NID IDTX03457
Owner typePrivate
Primary purposeIrrigation
Dam typeEarth
Year built1959
Dam height18 ft
Dam length750 ft
Max storage180 AF
Normal storage65 AF
Surface area12.0 ac
Hazard potentialNot Available
ConditionNot Rated

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.
Detailed forecast

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.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

Loading hourly forecast…
Deep dive

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.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
Loading detailed forecast…
Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

Loading 15-day outlook…
Regional inflow

Nearby streamflow gauges

USGS streamgauges around Holloway Lake -- inflows here typically show up in storage 24-72 hours later.

Track Holloway Lake 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.

FAQ

About Holloway Lake

Where does the data for Holloway Lake 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.

Premium feature

Favorites and alerts are part of Snoflo Premium. Save reservoirs, set storage thresholds, and get push notifications when conditions cross.

Upgrade to Premium Not now
🔔

Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this dam, set a threshold, and you'll get a push the moment conditions cross.

Open App Store