Sam Rayburn Dam Quick Facts
Sam Rayburn Dam Map
Sam Rayburn Dam Information
Sam Rayburn Dam is an earthen embankment dam located in Evadale, Jasper, Texas.
The dam, which is on the Angelina River, was primarily built for flood risk reduction purposes, but also serves for Fish and Wildlife Pond, Recreation, Hydroelectric and Water Supply benefits.
The dam was designed by CESWF and commissioned in 1965 and is currently owned by USACE – Fort Worth District.
Sam Rayburn Dam Structure
The Sam Rayburn Dam is approximately 12,400 feet (3,780 m) long, 120 feet (37 m) high and has a structural volume of 6,000,000 cubic yards (4,587,330 cubic metres).
Sam Rayburn Dam Storage Capacity & Surface Area
The reservoir has a normal storage capacity of 2,898,200 acre-ft (3,574,872 Ml) and maximum capacity of 6,520,000 acre-ft (8,042,290 Ml).
The surface area of the reservoir is 114,500 acres (46,337 ha) and the total catchment area is 3,449 square miles (8,933 square kilometres).
Sam Rayburn Dam Spillway
The dam has a 680 feet (207 m) wide uncontrolled spillway with a maximum discharge capacity of 227700 cubic feet per second (6448 cubic metres per second).
Sam Rayburn Dam Compared to Five Famous American Dams
Sam Rayburn Dam Weather
Current Conditions at Sam Rayburn Dam
| Parameter | Value |
|---|---|
| Current Time | 23:52 |
| Sunrise | 07:19 |
| Sunset | 18:44 |
| Temperature (°F) | 72 |
| Feels Like (°F) | 70 |
| Cloud Coverage (%) | 0 |
| Pressure (inHg) | 1020 |
| Humidity (%) | 34 |
| Wind Speed (mph) | 15 |
| Rain (mm) | 0 |
7-Day Forecast for Sam Rayburn Dam
| Day | Min Temp (°F) | Max Temp (°F) | Feels Like (°F) | Pressure (inHg) | Humidity (%) | Wind Speed (mph) | Wind Gust (mph) | Wind Dir | Precip Prob (%) | Precip Volume (mm) | Weather |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Today | 61 | 92 | 86 | 1016 | 26 | 12 | 29 | NE | 0 | - |  |
| Wed | 52 | 72 | 66 | 1027 | 18 | 15 | 32 | NE | 0 | - | |
| Thu | 45 | 73 | 68 | 1025 | 20 | 6 | 21 | ESE | 0 | - | |
| Fri | 47 | 78 | 74 | 1025 | 31 | 8 | 21 | ESE | 0 | - |  |
| Sat | 53 | 80 | 78 | 1026 | 40 | 8 | 24 | E | 0 | - | |
| Sun | 55 | 83 | 80 | 1024 | 38 | 7 | 15 | E | 0 | - | |
| Mon | 58 | 85 | 84 | 1019 | 43 | 6 | 13 | ESE | 0 | - |  |
| Tue | 64 | 89 | 89 | 1021 | 40 | 5 | 16 | SSE | 0 | - | |
Sam Rayburn Dam Frequently Asked Questions
Sam Rayburn Dam is in Texas.
Sam Rayburn Dam is in Jasper County.
Sam Rayburn Dam is 120 feet high.
Sam Rayburn Dam is 12,400 feet long.
More Dams in Jasper County:
Lloyd Shoals DamNewton Power Station Lake Dam
Rock Creek Dam
Sam Rayburn Dam
Town Bluff Dam
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Condition Assessment Classification
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. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
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. Investigations and studies are necessary.
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.
Not Available
Dams for which the condition assessment is restricted to approved government users.
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, environment 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.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Source: National Inventory of Dams