Nine motorways intersect with the M25; J3 : M20 J5 : M26 J7 : M23 J12 : M3 J15 : M4 J16 : M40 J21 : M1 J23 : A1(M) J27 : M11
M25
Ask the london council :)
It is 5*sqrt(m).
It depends on the Grade of Concrete. general grades are M15, M20, M25 etc. here are the nos. of bag required -------------------Bag for 1 cum---------------Bag for 5 cum M15------------------- 6.4----------------------------32 M20-------------------- 8-----------------------------40 M25--------------------12----------------------------60
187 miles taking this route:Take A23 LONDON (& later M23 motorway), from Brighton, to M25 HEATHROW (to M1) @ J8 on M23.Take M25, around London, to M1 to The NORTH @ J21.Take M1 to Nottingham.
95 miles taking this route:Take M25 GATWICK, from Dartford, around to M40(W) to OXFORD at J16.Take M40 to A40 OXFORD at J8.Take A40 to Oxford.
372 miles taking this route:Take A1 to The SOUTH, from Morpeth, down to M1 LONDON.Take M1 to M25 HEATHROW at J6A; follow signs to M25 HEATHROW.Take M25 (London Orbital) around LONDON, to M3 to The SOUTH WEST to SOUTHAMPTON at J12.Take M3 to A303 to The SOUTH WEST to ANDOVER and SALISBURY at J8.Take A303 to Stonehenge.
Nine motorways intersect with the M25; J3 : M20 J5 : M26 J7 : M23 J12 : M3 J15 : M4 J16 : M40 J21 : M1 J23 : A1(M) J27 : M11
75 miles taking this route:Take M25 GATWICK, from Epsom, around London, and thru Dartford x-ing (toll) to M11 STANSTED at J27.Take M11 to STANSTED AIRPORT at J8.
94 miles taking this route:EXIT the airport, and follow signs to M11. Follow signs to M11(S) LONDON (to M25).Take M11 to M25 at J6; follow signs to M25 WATFORD.Take M25, around London, to M40 to OXFORD at J16.Take M40 to A40 to OXFORD at J8.Take A40 to Oxford.
120 miles taking this route:Take A23 (& M23) LONDON, from Brighton, to M25 HEATHROW (to M1) at J8.Take M25, around LONDON, to M1 to The NORTH at J21.Take M1 to A421 BEDFORD at J13.Take A421 to Bedford.
215 miles taking this route:Take M56 MANCHESTER (towards M6 MOTORWAY), from Chester, to M6(S) BIRMINGHAM at J9.Take M6 to M5 to The SOUTH WEST at J8, in Birmingham.Take M5 to The SOUTH WEST to A39 GLASTONBURY at J23.Take A39 to Glastonbury.
115 miles taking this route:Follow M11 (S) towards LONDON from Cambridge to M25 towards DARTFORD CROSSING and WATFORD at J6; follow signs to M25 towards WATFORD.Take M25 (London Orbital) around LONDON, to M40 towards OXFORD at J16.Take M40 to A40 to OXFORD at J8.Take A40 to Oxford.
17.5 miles taking M25.
The shortest driving distance is 183 miles, using the M1 and M25.
111 miles taking this route:Take A272 LONDON (via A23), from Haywards Heath, to A23(N) LONDON (via M23). Follow signs.Take A23 & M23 to M25 HEATHROW (to M4) at J8.Take M25 (London Orbital), around LONDON, to M4 to The WEST at J15.Take M4 to A34 to OXFORD at J13; follow signs to A34(N) OXFORD.Take A34 to A4130 to DIDCOT; EXIT, and follow signs to A4130 DIDCOT.Take A4130 to Didcot.