UBC Dam 17 near Round Rock water level

Name: UBC Dam 17 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 17, Texas, United States

Directions

Very high for mid-October

Surface elevation

671.33ft Steady over the last 24 hours

Measured Oct 18, 2026, 11:45 PM CDT (1 hour ago)

History

What this means

There is plenty of water in UBC Dam 17 near Round Rock: 671.33 ft, well above normal for mid-October.

The median for mid-October is 670.86 ft, based on 7 years of readings, so the lake level is 0.47 ft above typical. On the same day last year the reading was 670.88 ft, a difference of +0.45 ft.

It has barely moved over the past 24 hours. Over the past 30 days it has moved between 671.13 ft and 671.40 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: 670.86 ft0.47 ft above the median for this date
Normal for this date: 670.06 ft – 671.32 ft8 years in 10 fall in this range (7 years of records)
Same day last year: 670.88 ft+0.45 ft
Lowest and highest in 30 days: 671.13 ft – 671.40 ft
Lowest and highest in 12 months: 670.93 ft – 673.30 ft

Swimming and boating at UBC Dam 17 near Round Rock

High water can flood ramps, parking areas and shoreline campsites, and it carries floating debris. Expect some no-wake zones to be extended.

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

The forecast is not available right now.

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
Brushy Creek at Kenney Fort Blvd at Round RockRiver gauge, Brushy Creek	3.34 ft	Normal	+0.03 ft	1.8 mi
UBC Dam 15 near Round RockReservoir, UBC Dam 15	697.26 ft	Very low	−0.02 ft	1.8 mi
UBC Dam 19 near HuttoReservoir, UBC Dam 19	659.43 ft	Low	−0.01 ft	1.9 mi
UBC Dam 16 near Round RockReservoir, UBC Dam 16	712.94 ft	Very low	−0.02 ft	2.1 mi
UBC Dam 14 near Round RockReservoir, UBC Dam 14	713.09 ft	Very low	−0.01 ft	2.3 mi
UBC Dam 18 near HuttoReservoir, UBC Dam 18	657.17 ft	Very low	−0.02 ft	2.6 mi
UBC Dam 11 near Round RockReservoir, UBC Dam 11	714.59 ft	Normal	±0	3.2 mi
UBC Dam 20 near HuttoReservoir, UBC Dam 20	646.77 ft	Very low	±0	3.6 mi

Questions and answers

Is UBC Dam 17 near Round Rock higher than last year?

Yes, it is 0.45 ft higher than on the same day last year, when the reading was 670.88 ft.

What is a normal level for UBC Dam 17 near Round Rock in mid-October?

The median for mid-October is 670.86 ft. In 8 years out of 10 the reading falls between 670.06 ft and 671.32 ft, based on 7 years of records.

Is UBC Dam 17 near Round Rock really 671.33 ft deep?

No. 671.33 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 17 near Round Rock today?

On Oct 18, 2026, 11:45 PM CDT, the surface elevation was 671.33 ft. Steady over the last 24 hours.

Is UBC Dam 17 near Round Rock rising or falling?

Steady over the last 24 hours. Down 0.05 ft over the last 7 days.

Is the level of UBC Dam 17 near Round Rock normal?

Very high 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:303212097373100 (Agency page)
Coordinates: 30.53666, -97.62525 (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	671.33 ft	2026-10-19 04:45	Provisional

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How to cite

U.S. Geological Survey: UBC Dam 17 near Round Rock (usgs:303212097373100). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/texas/ubc-dam-17-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