J&P
Sverige / USA
J&P

Lake Travis

Quick: Level, from waterdatafortexas.org – | Temperature | (more…)

General Information …

… and miscellaneous

Boat Ramps

Checklists

WIP – Transitioning, NOT yet moved / recreated from v1.jandp.biz/aqua/ (old.jandp.biz/aqua/, just *some* examples

Diving, Divers

Emerald Point Marina (‘EPM’)

– Our directions to Safe Harbor Emerald Point, a.k.a. Emerald Point Marina (web page) (2023)
Address: 5973 Hiline Rd, Austin, TX 78734    (Our old directions (PDF; 2020))

– shmarinas.com/locations/safe-harbor-emerald-point/

Events

Guides

Hazards

 

Marinas – Slips

Marine Services, Marinas – Service

Boat services – maintenance, repairs

Parks

Photos – Media

A few public photos – v1.jandp.biz/aqua/photos/

Rentals

Restaurants

Aug 2022:

Towing

BoatUS SeaTow
Cost / year (our needs) $90.00, ‘Unlimited Inland’ $119.00, ‘Lake Card’
Pros (+), Cons (-) + Magazine
– Call center has a bit to wish for… including their app – have to SAY everything, NO means for them got get access to info via app/IT system		 + (?) More direct access in the Lake, they are one of the companies operating there
? Not sure SeaTow’s app is that much better

Water – Level, Temp, …

(For more on how water is flowing into the lake, see The (Texas) Highland Lakes and LCRA operations.)

more – seems more current, up-to-date

more / old / …

 

Basic Info

Extract from waterdatafortexas.org/reservoirs/individual/travis:

Impoundment date 1942-01-01
Vertical datum NAVD88 +0.6
Dead pool elevation 535.75 ft above NAVD88 +0.6
Emergency spillway crest elevation 714.00 ft above NAVD88 +0.6 172% av full capacity (1.9/1.1) “Top of spillway”, “Lake Travis is designed to hold an additional 776,062 acre-feet of floodwaters in what is referred to as the flood pool.” [1] (1.1+~0.8=1.9, which is similar to the 1,921,731 acre-feet in [2])
Flood pool elevation 721.40 ft above NAVD88 +0.6
Maximum design elevation 745.00 ft above NAVD88 +0.6
Top of dam elevation 750.00 ft above NAVD88 +0.6
Conservation pool elevation 681.00 ft above NAVD88 +0.6 FULL lake, 100% capacity. “Lake Travis is considered full for water supply purposes at 681 feet msl. At that level, the lake contains 1.1 million acre-feet of water.” [1]
Data download (CSV) period of record, last one year, last 30 days

 

[1] “Lake Travis is the only lake in the Highland Lakes chain specifically designed to hold back floodwaters. Lake Travis is considered full for water supply purposes at 681 feet msl. At that level, the lake contains 1.1 million acre-feet of water. Lake Travis is designed to hold an additional 776,062 acre-feet of floodwaters in what is referred to as the flood pool.” [lcra.org/water/dams-and-lakes/]

[2] “The maximum design water surface may reach to 748.9 feet above mean sea level. According to the TWDB 2008 volumetric survey (LiDAR dataset), Lake Travis has a storage capacity of 1,134,956 acre-feet encompassing a surface area of 19,297 acres at conservation pool elevation (681.6 feet NAVD88). At the flood pool elevation 714.6 feet above mean sea level (NAVD88), the total storage capacity of Lake Travis is 1,921,731 acre-feet, encompassing a surface area of 29,160 acres. The drainage area above the dam is 38,130 square miles, of which 11,900 is probably noncontributing. Runoff is partly regulated by Lake Buchanan and other reservoirs upstream.”  [twdb.texas.gov/surfacewater/rivers/reservoirs/travis/index.asp]

From en.wikipedia.org/wiki/Lake_Travis:

Location Travis / Burnet counties, northwest of Austin, Texas
Coordinates 30°23′31″N 97°54′24″W
Lake type Hydroelectric reservoir
Primary inflows Colorado River
Primary outflows Colorado River
Basin countries United States
Surface area 18,930 acres (7,660 ha)
Max. depth 210 ft (64 m)
Water volume 1,130,000 acre⋅ft (1.39 km3)
Shore length1 270 mi (434 km)
Surface elevation

 

From lcra.org/water/floods/key-elevations-for-lake-travis-during-floods/:

 

Records – Water Level

From lcra.org/water/dams-and-lakes/ (go to Lake Travis section and expand it): (R:2025-07-17)

Top 10 highest levels for Lake Travis

​Rank ​Date ​Height* (feet msl)
​1 ​Dec. 25, 1991
 ​710.44
​2 ​May 18, 1957
 ​707.38
​3 ​June 26, 1997
 ​705.11
​4 ​Feb. 8, 1992
 ​704.83
​5 ​Oct. 20, 2018 ​704.39
​6 ​July 6, 2007 ​701.52
​7 ​Nov. 24, 2004
 ​696.70
​8 ​June 14, 1987
 ​693.48
9 ​July 7, 2002
 ​693.47
​10 June 7, 2016 ​692.70

Lowest Lake Travis Elevations

​R​​​ank Drought ​Date ​Height* (feet msl)
​1 1947-57 ​Aug. 14, 1951 ​614.18
​2 1963-64 ​Nov. 8, 1963 ​615.02
3 2008-16 ​Sept. 20, 2013 ​618.56
​4 1983-84 ​Oct. 7, 1984 ​636.58
​5 1999-2000 ​Oct. 15, 2000 ​640.24
​6 2005-06 ​Dec. 13, 2006 ​643.55

*Based on daily readings at 8 a.m.

BUT – TABLE ABOVE hasn’t been updated – e.g. 2023 is missing. There are more “discrepancies”, at least compared to golaketravis.com/waterlevel/ though this can (only) partly depend on what measurements are used (e.g. daily average or at a specific time of day).

From GoLakeTravis R:2025-07-17:

Highest Historic Flood Levels – Lake Travis

Rank

Date

Height (msl)

1

 Dec 25, 1991 710.44

2

 May 18, 1957 707.38

3

 June 25, 1997 705.11

4

 Feb 9, 1992 704.68
5 Oct 20, 2018 (most recent) 704.39

6

 July 6, 2007 701.51

7

 Nov 25, 2004 696.70

8

 July 7, 2002 693.50

9

 June 14, 1987 693.48

10

 June 16, 2016 692.69

 

Lowest Historic Drought Levels – Lake Travis

Rank

Date

Height (msl)

1

 Aug. 14, 1951 614.18

2

 Nov. 8, 1963 615.02

3

 Sept. 20, 2013 618.64

4

 Nov. 15, 2014 622.65
5 Oct. 25, 2023 (most recent) 626.93

6

 Oct. 4, 2009 629.83

7

 Oct. 7, 1984 636.58

8

 Oct. 15, 2000 640.24

9

 Dec. 13, 2006 643.55

 

* msl: mean sea level; height is feet above msl

* 681 feet msl: Lake Travis is considered full for water supply purposes at 681 feet msl

 

 

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