What water level is good for paddling Llano River — Llano to Castell?

This section is generally runnable at 80–1,500 cfs (a conservative estimate — see our methodology). Below that it gets too low and bony; well above the top of the range it becomes pushy and then dangerous. We compare the live USGS reading to that range to produce today's verdict.

How do I check Llano River levels?

We read USGS gauge 08151500 — the same public data USGS publishes — about every 30 minutes and compare it to the runnable range for this reach. You can also view the raw gauge yourself at waterdata.usgs.gov.

Is Llano River — Llano to Castell good for beginners?

This section is rated Class II. At good levels it suits confident beginners and up, but it can have riffles or small rapids. Scout anything you can't see, and stay off it at high water.

When is the best time to paddle Llano River here?

Typically March–October, when flows are most reliable for this section. Spring can run high after rain or snowmelt; late summer can drop too low. Always check today's gauge reading rather than assuming.

How long does it take to float Llano River — Llano to Castell?

This reach is about 14 miles, roughly 7 hours at a relaxed pace. Higher water is faster; low water and headwinds are slower. Add time for stops.

Llano River — Llano to Castell: River Level Today — Can You Paddle It?

Class II14 mi · ~7 hrLlano RiverTexas

Verdict · updated Aug 25, 3:00 AM UTC

Good to paddle

Levels are within the typical runnable range for this section.

Estimated range

198 cfs

2.0 ft gauge height

USGS gauge 08151500

Runnable 80 – 1,500 cfs

0801,5001,784

What this means today

At 198 cfs the Llano River is inside the runnable range but only 118 cfs above the 80 cfs floor, so it is sitting at the shallow end of what this reach runs at. A dry few days would take it under.

Over the last 24 hours it has barely moved, 210 cfs to 198 cfs. Daily means over the past 7 days have run between 212 cfs and 266 cfs, 20% lower at the end of the week than the start.

Paddling Llano to Castell

Llano River at Llano to Castell is a 14-mile Class II run in Texas — bouncy wave trains and the occasional small rapid. Most paddlers put in at Llano (Robinson City Park) and take out at Castell crossing, a trip that runs about 7 hours at a relaxed pace.

Whether it's worth the drive comes down to flow. This section generally paddles well at 80–1,500 cfs (a conservative estimate — see our methodology). Much below that and the Llano River gets low and bony, so you end up scraping gravel and walking the shallows; well above the top of the range it turns fast, cold and pushy, which is a more serious day than most casual boaters want. We read USGS gauge 08151500 about every 30 minutes and compare the live number to that window, so the verdict at the top of this page reflects conditions right now rather than a monthly average.

Flows here are usually most dependable March–October. Spring can run high after rain or snowmelt, and late summer often drops too low to float well — but the gauge always beats the calendar, so check today's reading before you go.

7-day flow trend

Daily mean flow (cfs), past 7 days. Shaded band = runnable range.

Section facts

Difficulty: Class II
Length: 14 mi
Float time: ~7 hr
Best months: March–October
Put-in: Llano (Robinson City Park)
Take-out: Castell crossing

Reading USGS gauge 08151500 — Llano Rv at Llano, TX ↗ · runnable range is an estimate (see methodology)

FAQ

What water level is good for paddling Llano River — Llano to Castell?: This section is generally runnable at 80–1,500 cfs (a conservative estimate — see our methodology). Below that it gets too low and bony; well above the top of the range it becomes pushy and then dangerous. We compare the live USGS reading to that range to produce today's verdict.
How do I check Llano River levels?: We read USGS gauge 08151500 — the same public data USGS publishes — about every 30 minutes and compare it to the runnable range for this reach. You can also view the raw gauge yourself at waterdata.usgs.gov.
Is Llano River — Llano to Castell good for beginners?: This section is rated Class II. At good levels it suits confident beginners and up, but it can have riffles or small rapids. Scout anything you can't see, and stay off it at high water.
When is the best time to paddle Llano River here?: Typically March–October, when flows are most reliable for this section. Spring can run high after rain or snowmelt; late summer can drop too low. Always check today's gauge reading rather than assuming.
How long does it take to float Llano River — Llano to Castell?: This reach is about 14 miles, roughly 7 hours at a relaxed pace. Higher water is faster; low water and headwinds are slower. Add time for stops.

Nearby sections

Good to paddle · 235 cfs