Long River Trip Stats

four winns 214

Senior Chief Petty Officer
Joined
Oct 25, 2008
Messages
757
Several folks have inquired here about making extended boat trips on lakes and rivers. To give folks who might be contemplating such a trip a baseline from which to plan, here are some statistics from a trip on the Tennessee River I just made in a 1984 21' Sea Ray cuddy, my fifth long river trip. It took four and one-half days to cruise from the Tennessee's source at Knoxville, Tennessee to Kentucky Dam near Paducah, Kentucky, a chart distance of 630 miles and eight locks.

I had a Garmin 396 GPS on any time the boat was underway and it recorded move time and mileage. The actual mileage was 651 miles over 38 hours of move time. That translates to 17 mph average speed. I burned 192 gallons which is 3.3 mpg. Almost all of the time I was at cruise speed I made 25 mph, but the time idling into and out of marinas and other no wake areas brought down the average.

The real time wild card on a trip where locks are involved is budgeting the time transiting them. On this trip that varied from 30 minutes to turning back to a marina for an overnight after being told it was going to be 3 1/2 hours before I could lock through. Thankfully, that happened only once, but the potential is always there for such on a busy waterway like the Tennessee that has lots of commercial towboat traffic.. Recreational pleasure craft have the lowest priority for lockage. Most times the lock process was 45 minutes to an hour.

Another time wild card is the water conditions. The Tennessee is really a series of man-made lakes created by hydroelectric dams. The wind can turn them in a white-capped nightmare that makes for a miserable, slow ride. I was very lucky and had excellent water conditions for most of the trip with only about 20 miles of Pickwick Lake having water conditions that slowed me below 25 mph.

I stayed three nights in marinas with amenities such as showers and restaurants for dinner. I ate breakfast and lunch on the boat underway. The final night, I anchored behind an island when I couldn't make a marina before dark. I knew I wasn't going to be able to make it, but I had an opportunity to get through the final lock of the trip with no delay and I opted to take it. It turned out to be a very peaceful night that I really enjoyed.

It is absolutely essential to carry navigation charts for a trip like this so that you can give an accurate position should you need to summon help. I had marine charts and XM weather on the Garmin and on my iPad I had Corps of Engineers river charts in PDF downloaded from the Corps website. It was a great combination. I'll post a few pictures in a day or two when I get time.
 
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four winns 214

Senior Chief Petty Officer
Joined
Oct 25, 2008
Messages
757
Sorry for the giant block of text. I really do understand the concept of a paragraph, but for some reason they don't happen for me using the iPad.
 

redneck joe

Supreme Mariner
Joined
Mar 18, 2009
Messages
10,256
glad you made it and yes I've been on Guntersville in 3' waves.


you have a 5.7 in that boat? I'm wanting to do a run from Gville up to Knox and back and was panning 3 mpg on a 75 gal tank.
 

four winns 214

Senior Chief Petty Officer
Joined
Oct 25, 2008
Messages
757
The boat has a 5.0L with a 4bbl carb. I'd say planning 3 mpg should put you in the ballpark, but the best thing to do is make some test runs to verify. On the way to Knoxville, you'll love the trip through the Tennessee River Canyon between Hales Bar and Chattanooga. It was one of the best parts of the trip. Above Chattanooga, Watts Bar and Ft. Loudoun Lakes are really lined with houses and some of them are pretty spectacular.
 
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