Slowpoke Slim
Elite Member
- Joined
- Jan 6, 2017
- Messages
- 3,620
- Location
- Bismarck, ND
- Tractor
- Husqvarna YTH24V48 riding mower, Branson 3725CH
OP,
Gotcha on the slope estimate. Here is a chart that shows slope angle in degree and percent of grade:

As you can see, a 30 to 35 degree slope is pretty serious. There are free inclinometer apps available for your smart phone that will let you measure specific spots on a slope to get degrees or percent grade of slope. Take a 6 or 8 foot long 2x4 and lay it on the slope, then place your smart phone on top of that. Spot checking various slopes around your place like that will give you a pretty good idea on what your actual slope angles are.
A 35 degree slope would take some pretty specialized equipment to traverse, let alone mow. Since your neighbor is able to traverse it without much issue, I'm speculating that your slope angles are probably much lower. A basic rule of thumb is degrees of angle is roughly half of percent of grade (not exactly, but "close enough" for rough estimating).
I had one slope on our last place (we recently bought-and-moved-house) that was 25 degrees in a couple places, and more than 20 degrees for a good portion (it was a road ditch near a storm drain culvert). That particular section I could only mow when it was completely dry, and from 20 degrees and steeper, I would only mow it straight up and straight down the slope. Thankfully there were flat "turn around" spots at both the top and bottom of the slope area. But I could mow up or down that slope in Low range on the HST, with front axle engaged, and with diff lock engaged. I would never even try to traverse this area by "side sloping" the hill.
Gotcha on the slope estimate. Here is a chart that shows slope angle in degree and percent of grade:

As you can see, a 30 to 35 degree slope is pretty serious. There are free inclinometer apps available for your smart phone that will let you measure specific spots on a slope to get degrees or percent grade of slope. Take a 6 or 8 foot long 2x4 and lay it on the slope, then place your smart phone on top of that. Spot checking various slopes around your place like that will give you a pretty good idea on what your actual slope angles are.
A 35 degree slope would take some pretty specialized equipment to traverse, let alone mow. Since your neighbor is able to traverse it without much issue, I'm speculating that your slope angles are probably much lower. A basic rule of thumb is degrees of angle is roughly half of percent of grade (not exactly, but "close enough" for rough estimating).
I had one slope on our last place (we recently bought-and-moved-house) that was 25 degrees in a couple places, and more than 20 degrees for a good portion (it was a road ditch near a storm drain culvert). That particular section I could only mow when it was completely dry, and from 20 degrees and steeper, I would only mow it straight up and straight down the slope. Thankfully there were flat "turn around" spots at both the top and bottom of the slope area. But I could mow up or down that slope in Low range on the HST, with front axle engaged, and with diff lock engaged. I would never even try to traverse this area by "side sloping" the hill.