[permaculture] Re: pothole fixes
THEDRINGS at telefonica.net
THEDRINGS at telefonica.net
Sat Apr 10 05:21:01 EDT 2004
Many thanks for the very comprehensive information.
Tel: 0034 952 15 32 92
----- Mensaje Original -----
De: "Albert Postema" <postema at nwlink.com>
Fecha: Sábado, Abril 10, 2004 9:23 am
Asunto: [permaculture] Re: pothole fixes
> Greetings Dominic,
> Potholes, potholes, no easy solution
> Going on the assumption that the roadway, is not asphalt,
> has a gravel base of some sort
> and has potholes therein, the best way is to regrade.
> With care taken
> to loosen the soil around the pothole edges.
> If the potholes are just filled, they will show back up very shortly.
> Due to the "looseness" of the fill material in the potholes
> and the "non adhesive" interface of the fill - pothole mix.
> On badly potholed roadways (24" diameter, 6" depth)
> we will take a dozer with a ripper attachment and scour the roadway
> to loosen all the roadway base material, regrade, and provide
> compaction of some form (wheel rolling typically with loaded truck).
> Doing this during dry weather is very preferable and drain or
> scoop all water
> out of potholes prior to regrading. A tractor with a keyline plow
> couldwork as well. The key being to loosen the material around the
> pothole, so all material will recompact at the same rate.
> Otherwise the potholes will be back in a month or so.
> Scouring the entire roadway, regrading and new gravel placement
> (2-3" thick)
> would set you good for 6 months or so, before new potholes start
> forming.(figuring 30- 40 vehicle trips per day)
> The most efficient way to keeping your gravel roadway, driveway
> from the pothole pizza scenario's is frequent minor maintenance.
> Once a month or when a pothole starts to form, fill with a fine
> gravel. And or regrade. We do regrading for some local
> associations twice a year. (May, Nov.)
> A small chipped or fractured material with fines works best for
> filling potholes.
> If you let potholes go, they
> will devolp into bigger problems. The adage, " a ounce of
> prevention is worth a
> pound of cure" is very pothole applicable.
> Call some local contractors and ask for bids, make sure you
> compare apples to apples. Estimated time: 1km x 3m of roadway
> scouring 3.5-5hr dozer... regrading and spread gravel 3.5-5hr.
> If they do not talk about "breaking" up the pothole edges, go get
> some other opinions, they probably are not as experienced or aware.
> Form a pothole committee with alternating bi- weekly "pothole
> parades" among the roadway users ie; walk the roadway with a rake.
> Hopefully this information is helpfull.
> Best regards
> Albert Postema
> Earthwise Excavation 100% Biodiesel powered
> Snohomish, Washington State
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