UBC Dam 11 near Round Rock water level

Name: UBC Dam 11 near Round Rock water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

Reservoir, UBC Dam 11, Texas, United States

Directions

Normal for mid-October

Surface elevation

714.59ft Steady over the last 24 hours

Measured Oct 18, 2026, 11:45 PM CDT (2 hours ago)

History

What this means

Nothing unusual at UBC Dam 11 near Round Rock right now: the lake level of 714.59 ft is in the normal range for mid-October.

The median for mid-October is 714.72 ft, based on 7 years of readings, so the lake level is 0.13 ft below typical. On the same day last year the reading was 714.63 ft, a difference of −0.04 ft.

It has barely moved over the past 24 hours. Over the past 30 days it has moved between 714.59 ft and 714.79 ft.

Many reservoirs are drawn down through summer and fall; most of the refill comes later, with winter rain or spring snowmelt.

Compared with 7 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 714.72 ft0.13 ft below the median for this date
Normal for this date: 714.24 ft – 718.55 ft8 years in 10 fall in this range (7 years of records)
Same day last year: 714.63 ft−0.04 ft
Lowest and highest in 30 days: 714.59 ft – 714.79 ft
Lowest and highest in 12 months: 714.59 ft – 723.61 ft

Swimming and boating at UBC Dam 11 near Round Rock

At a normal level, ramps and marinas generally run as usual, and fishing tends to follow the season more than the water level.

If you swim, pick a spot with an easy way out, and remember that drop-offs move as the level changes.

Weather at the gauge

No rain in the last 3 days.

18 Sun 70° 47° – Wind 6 mph

19 Mon 75° 51° – Wind 8 mph

20 Tue 81° 57° – Wind 9 mph

21 Wed 83° 60° – Wind 7 mph

22 Thu 85° 65° – Wind 10 mph

23 Fri 84° 63° – Wind 13 mph

24 Sat 84° 63° – Wind 13 mph

Forecast: Open-Meteo

Sunrise 07:36 AM Sunset 06:56 PM Daylight 11 hr, 20 min First quarter 56%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
UBC Dam 14 near Round RockReservoir, UBC Dam 14	713.09 ft	Very low	−0.01 ft	0.9 mi
UBC Dam 12 near Round RockReservoir, UBC Dam 12	757.69 ft	Normal	±0	1.9 mi
Brushy Creek at IH 35, Round RockRiver gauge, Brushy Creek	3.44 ft	Normal	+0.01 ft	2.0 mi
UBC Dam 17 near Round RockReservoir, UBC Dam 17	671.33 ft	Very high	+0.01 ft	3.2 mi
Brushy Creek at Kenney Fort Blvd at Round RockRiver gauge, Brushy Creek	3.34 ft	Normal	+0.03 ft	3.2 mi
UBC Dam 16 near Round RockReservoir, UBC Dam 16	712.94 ft	Very low	−0.02 ft	3.4 mi
UBC Dam 15 near Round RockReservoir, UBC Dam 15	697.26 ft	Very low	−0.02 ft	4.1 mi
UBC Dam 13 near Round RockReservoir, UBC Dam 13	828.47 ft	Normal	−0.03 ft	4.3 mi

Questions and answers

Is UBC Dam 11 near Round Rock higher than last year?

No, it is 0.04 ft lower than on the same day last year, when the reading was 714.63 ft.

What is a normal level for UBC Dam 11 near Round Rock in mid-October?

The median for mid-October is 714.72 ft. In 8 years out of 10 the reading falls between 714.24 ft and 718.55 ft, based on 7 years of records.

Is UBC Dam 11 near Round Rock really 714.59 ft deep?

No. 714.59 ft is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.

What is the water level of UBC Dam 11 near Round Rock today?

On Oct 18, 2026, 11:45 PM CDT, the surface elevation was 714.59 ft. Steady over the last 24 hours.

Is UBC Dam 11 near Round Rock rising or falling?

Steady over the last 24 hours. Steady over the last 7 days.

Is the level of UBC Dam 11 near Round Rock normal?

Normal for mid-October. Compared with 7 years of daily readings for this time of year.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:303227097404504 (Agency page)
Coordinates: 30.54131, -97.67879 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Surface elevation	714.59 ft	2026-10-19 04:45	Provisional

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How to cite

U.S. Geological Survey: UBC Dam 11 near Round Rock (usgs:303227097404504). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/texas/ubc-dam-11-near-round-rock

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer