To maintain a hardpack driveway for longevity and durability, regularly fill in any potholes or cracks, apply a fresh layer of gravel as needed, compact the surface regularly, and ensure proper drainage to prevent water damage. Regular maintenance and upkeep will help extend the lifespan of your driveway.
Dig out app. 10 inches of soil. Fill 6 inches of hardpack (crushed concrete). This is for drainage and frost heave prevention. Bring in the concrete truck after renting floats and trowels and building frame. The whole driveway should be surrounded by 1X wood or PVC particle board sprayed with wd 40. The side of the 1X facing away from the concrete should have spikes in the ground and fastened to the board. You level the concrete to the top of these boards. It's like a big frame surrounding the project and you should take your time in building it, for level, runoff and evenness. Have a wheelbarrel and a few extra hands ready (the driver charges by the minute after a certain amount of time). The concrete should be fiber reinforced mix. This type eliminates the need for metal screening or fencing over the hardpack and suspended in the concrete for strength. Be advised, if you're in a snowy region, salt will be your only advisary, don't use it, salt eats concrete. You also need to put in stress gaps from side to side every 8 feet or more depending on width. When the concrete cracks it will crack along these lines. You do this when the concrete starts setting up but is still soft. Finish trowel all the edges. Screen the concrete with a long board across the width (from board top to board top and then use the float to smooth it. Keep a few wheel barrells full of concrete ready so you can get rid of the truck and still have concrete for leveling and fill after a majority of the concrete has been shovelled in. A tool rental agency may have tips and advice also.
A 125cc dirt bike generally hits a top speed of 60 mph. Consider this a top speed when racing Motocross or riding trails on a hardpack straightaway - the ideal setting for a dirt bike. However, if you must, on paved roads expect to hit close to 70 mph.
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern HAR-P---. That is, eight letter words with 1st letter H and 2nd letter A and 3rd letter R and 5th letter P. In alphabetical order, they are: hardpack hardpans
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 2 words with the pattern H--DPA--. That is, eight letter words with 1st letter H and 4th letter D and 5th letter P and 6th letter A. In alphabetical order, they are: hardpack hardpans
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 4 words with the pattern HA-DP---. That is, eight letter words with 1st letter H and 2nd letter A and 4th letter D and 5th letter P. In alphabetical order, they are: handpick handplay hardpack hardpans
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern H-R-P-C-. That is, eight letter words with 1st letter H and 3rd letter R and 5th letter P and 7th letter C. In alphabetical order, they are: hardpack
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 7 words with the pattern -A-D-AC-. That is, eight letter words with 2nd letter A and 4th letter D and 6th letter A and 7th letter C. In alphabetical order, they are: cardiacs hardback hardface hardhack hardpack hardtack landrace
I'm sure it depends upon how well you prepare the subsurface. A good foot of hardpack, quality dirt with another six inches to a foot of roadbase underneath four inches of properly laid concrete can offer some major load bearing qualities. If I were you, I would research how the Autobahn and similar roads are constructed. They are built very differently from most highways and Interstates in the United States.
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 7 words with the pattern H-RD--C-. That is, eight letter words with 1st letter H and 3rd letter R and 4th letter D and 7th letter C. In alphabetical order, they are: hardback hardface hardhack hardpack hardrock hardtack herdwick
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 1 words with the pattern H-RDP--K. That is, eight letter words with 1st letter H and 3rd letter R and 4th letter D and 5th letter P and 8th letter K. In alphabetical order, they are: hardpack
According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 38 words with the pattern H------K. That is, eight letter words with 1st letter H and 8th letter K. In alphabetical order, they are: hackwork hairlock hairwork halfback halfbeak hallmark handbook handpick handwork hardback hardhack hardpack hardrock hardtack hashmark hatcheck havelock haystack headfuck headlock headmark headwork helideck helpdesk herdwick highjack hillfolk holdback homesick homework hoodwink hornbeak hornbook hornwork howlback humoresk humpback hymnbook
Depends on what you mean. If you're only facing snow that's still soft enough to take an impression, then what you want is the widest tires your frame/fork can take, a fairly open tread pattern and run them on low pressure. If you want traction on ice and hardpack too, then you need studded tires. For recreational use you can make your own. I'll post a link, scroll down 3/4 of the page. Note that the screws used for studs in the DIY tires are fairly soft, and wear out fast if you hit regular patches of bare roads/rock. For regular use I recommend buying studded tires instead. Their studs are much harder than the home made variety, and hold up quite well on bare roads.