As I split wood in my backyard, I remembered how tough splitting rungs can be sometimes. I got to thinking and I've come up with an easier way to make rungs for ladder bridges.
Step 1
http://www.pinkbike.com/photo/2822202/
Find a log you want to split. Lay it on some smaller logs so it is off the ground. This makes it so your chainsaw doesn't hit dirt and dull the teeth. Stabilize both ends so the log doesn't move easily.
Step 2
Saw off the first few inches of the log lengthwise. Do this for about 5 ft. Any more and your saw may overheat.
Step 3
Let's say we want 7" wide and 20" long rungs. Make your next cut in the log 7" over from the one you just made. Again, cut 5ft or so. Depending on the diameter of the log you might do this twice or even more.
Step 4
The log is now sliced up lengthwise but still intact. Cut every 20" and the boards will fall off.
http://www.pinkbike.com/photo/2822251/
Step 5
Now you have 7" x 20" blocks of wood. Cut every 2" and you have slats!
http://www.pinkbike.com/photo/2822203/
This is a mix between the "new way" of making ladderbridges and the old.
FYI this is the New Way
You'll end up with rungs that look like this.
I welcome feedback.