You know that there are layers of dirt and rock lie beneath the surface you drive on, but would you guess that some roads are built on top of a special material (in addition to all the dirt and rocks)?
If you’ve ever drifted a little too far outside a travel lane, only to be jolted back to attention with a not-so-subtle shake, you know what rumble strips are.
No, the stair-step design on the slope at right isn’t just for looks… The “steps” are actually referred to as minibenches and they serve as an erosion and sediment control measure on slopes.
You might remember that we blogged about inclinometers back in February – they’re the instruments used to measure slope inclination or movement at specific locations ...