ok.....but when open Vutomi Road ?????
Well , as we know , during the floods quite a lot of damage was caused to roads , such as culverts , bridges , causeways , etc being damaged , portions of roads totally being washed away . It would obviously be necessary then to " rebuild " such sections , replacing base-course , compaction , grading , relaying of culverts , etc . , and that can take time , especially if it continues to rain , having to wait for " fair " weather , and so on .
One has to be patient
I was just wondering, why don't they use a farm implement, what we call a 'skottel eg'? It looks like a skottel that is use for the braai at the picnic sites. It normally has 4 rows of skottels, with the front row at a 30 degree angle to the right and the second row 30 degrees to the left with the other rows the same. It will cut trough, and break up any corrugations, even in winter.
Just a thought from a former plaas boytjie.
Not really a good idea Rooies . The gravel roads are constructed by laying down layers of material and compacted . This is called the basecourse and you certainly do not want to plough it up . It is shaped and profiled specifically to allow for water run-off and drainage , etc . Vehicle traffic over it unfortunately does cause corrugations and rain-water also damages it , and as such it regularly needs to be re-graded not only to smooth out the bumps , ridges and channels , but also to scrape back displaced gravel and sand that had been moved and blown to the sides of the roads .
Ag no man okie, you have bursted my bubble. I thought that I am in line for SANParks's medal of the year for ingenuity and now you are telling me that I may not even be in line for the wooden spoon. But, there must be a simple and efficient way to get rid of the corrugations without resorting to expensive grading and other maintenance.
Rooies , I do not think there is any solution to the problem of corrugation on gravel roads . The riffles are caused by many things , and IMHO , wind plays a large part in this . As vehicles travel over the road , it cause dust to swirl up behind them ( wind-action ) , and the more vehicles that use the road , the more dust is disturbed , and loosened by the wheels .
The dust-particles are picked up and deposited on the lee-sides of the ridges , ready to be disturbed and picked up again by the wind-action of the next vehicle .
This , to some extent is the same as that of wind which cause the huge sand-dunes in the desert . These dunes lie in a pattern , crosswise to the prevailing wind . Dust particles are picked up on the windward side of the dune , and carried OVER the ridge ( which causes a somewhat negative pressure/vacuum , causing the particles to be deposited on the leeward side , and forever creeping forward .
Flowing water have the same effect on sandy-bottoms , also on the ocean-floor , through wave action