UBC Dam 15 near Round Rock water level

Name: UBC Dam 15 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 15, Texas, United States

Directions

Very low for mid-October

Surface elevation

697.26ft Steady over the last 24 hours

Measured Oct 19, 2026, 03:30 PM CDT (25 min ago)

History

What this means

Water is short at UBC Dam 15 near Round Rock: the latest reading of 697.26 ft is far below normal for mid-October.

The median for mid-October is 698.21 ft, based on 7 years of readings, so the lake level is 0.95 ft below typical. On the same day last year the reading was 698.34 ft, a difference of −1.08 ft.

It has barely moved over the past 24 hours. The 30-day range is 697.26 ft – 697.74 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: 698.21 ft0.95 ft below the median for this date
Normal for this date: 697.28 ft – 699.15 ft8 years in 10 fall in this range (7 years of records)
Same day last year: 698.34 ft−1.08 ft
Lowest and highest in 30 days: 697.26 ft – 697.74 ft
Lowest and highest in 12 months: 697.28 ft – 701.09 ft

Boating and fishing at UBC Dam 15 near Round Rock

At low levels, launching can mean a long walk or a closed ramp, and shallow points stick out further than charts suggest.

Conditions at the shore change with the level, so check with the agency that runs the lake before a trip.

Weather at the gauge

The forecast is not available right now.

Sunrise 07:36 AM Sunset 06:56 PM Daylight 11 hr, 20 min First quarter 62%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
UBC Dam 16 near Round RockReservoir, UBC Dam 16	712.94 ft	Very low	−0.02 ft	1.0 mi
UBC Dam 17 near Round RockReservoir, UBC Dam 17	671.34 ft	Very high	+0.01 ft	1.8 mi
UBC Dam 18 near HuttoReservoir, UBC Dam 18	657.17 ft	Very low	−0.01 ft	2.2 mi
UBC Dam 19 near HuttoReservoir, UBC Dam 19	659.44 ft	Low	±0	2.9 mi
UBC Dam 14 near Round RockReservoir, UBC Dam 14	713.07 ft	Very low	−0.02 ft	3.3 mi
Brushy Creek at Kenney Fort Blvd at Round RockRiver gauge, Brushy Creek	3.30 ft	Normal	−0.02 ft	3.7 mi
UBC Dam 20 near HuttoReservoir, UBC Dam 20	646.77 ft	Very low	±0	4.1 mi
UBC Dam 11 near Round RockReservoir, UBC Dam 11	714.60 ft	Normal	±0	4.1 mi

Questions and answers

Is UBC Dam 15 near Round Rock higher than last year?

No, it is 1.08 ft lower than on the same day last year, when the reading was 698.34 ft.

What is a normal level for UBC Dam 15 near Round Rock in mid-October?

The median for mid-October is 698.21 ft. In 8 years out of 10 the reading falls between 697.28 ft and 699.15 ft, based on 7 years of records.

Is UBC Dam 15 near Round Rock really 697.26 ft deep?

No. 697.26 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 15 near Round Rock today?

On Oct 19, 2026, 03:30 PM CDT, the surface elevation was 697.26 ft. Steady over the last 24 hours.

Is UBC Dam 15 near Round Rock rising or falling?

Steady over the last 24 hours. Down 0.15 ft over the last 7 days.

Is the level of UBC Dam 15 near Round Rock normal?

Very low 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:303341097364800 (Agency page)
Coordinates: 30.56129, -97.61344 (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	697.26 ft	2026-10-19 20:30	Provisional

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How to cite

U.S. Geological Survey: UBC Dam 15 near Round Rock (usgs:303341097364800). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/texas/ubc-dam-15-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