On Dec 13, 9:11 am, Tim Lamb wrote:
Groundwork Trust laid a crushed concrete topping on our by-way 3 years
ago. I have watched the appearance of *holes* since then. The lack of a
significant fall and proper drainage led to initial puddling and then
hole creation.

Fingers have been pointed at heavy farm vehicles but these rarely move
at more than 6-8mph and have cleated tyres which tend not to flush water
out of puddles. I believe the cause is car traffic probably travelling
at less than 20mph. Any water standing on the surface is flushed away
together with any grit or fines. These form *walls* around depressions.
Slight surface depressions collect more water and accelerate the
process. Eventually the hole reaches 2" depth with another 1/2" wall and
close to traffic calming bump height!

exactly correct!
we have bad/no drainage problems outside of my control (different
owners either side)


At a rough estimate there are about 20 vehicle movements per day: 10 in
and 10 out. Mainly intellectually challenged folk who ignore the *no
through road* sign in obedience to their navigator instructions.

Jim has not explained the legal status of the route but it is clearly
very narrow and also used by horse riders. If this is a bridleway with
vehicle access rights he should expect strong resistance to any
interference with the surface unless agreed with the local Highways
officer.

nearly - correctly it is my road upon which there are rights for the
rest of the world to ride horses, walk and cycle
It's primary purpose is access for me to my property not for anything
else - that's secondary...like other highways...

I think concrete *rails* 4" above the main surface would be
considered dangerous to other users.

hence my plan to round the edges of the concrete (see OP)
how else will it be dangerous? the middle will eventually start to
fill up with horse sh1t/grass anyway?

I know he is trying to do this at
minimal cost but think the concrete should be in shallow trenches with
the surplus MOT used to fill the middle.

fill the middle ? if concrete is trenched - what middle?

A much cheaper alternative would be to level off the holes with a
coarser material than MOT as soon as they appear.

what sort of material do you have in mind?

cheers
JimK