Light
and Heavy Duty Crossings - Standard Construction Details
Private
(Light Vehicles Not Exceeding 2 Tonne)
Description of Diagram of Private Crossing
Alternative
forms of construction:-
A
- Wearing Course - 6mm thickness of fine cold asphalt to BS 4987 tables 53-56
or 12mm of 6mm nominal size wearing course to BS 4987 Tables 37-40
Base
Course - 45mm thickness of 20mm nominal size dense bituminous macadam to BS
4987 Tables 25-28
*Base
150mm of 19mm granular base to CL 803 of D.O.T. specification
B
- 125mm of concrete (min. strength 29 N/mm2) on 75mm of granular sub-base
Slab footway crossings are not approved
Commercial
(Vehicles of 2 Tonne and over)
Description of Diagram of Commercial Crossing
Alternative
forms of construction:-
A
- Wearing Course - 28mm of 10mm nominal size dense bitmac to BS 4987 Tables
45-48
Base
Course - 60mm of 38mm nominal size dense bitmac to BS 4987 Tables 17-20
*Base
- 225mm of graded granular road base to clause 803 of D.O.T. specification or:
B
- 175mm of concrete (min. strength 29N/mm2) with mesh reinforcement BS Ref A98
30mm top of slab on 75mm of granular sub-base BS 4987.
*Notes:
Where a vibrating roller with only a single roller (nominally rated at 0.4 tonnes)
is used settlement will occur unless layers are restricted to 125mm thickness
and receive at least 16 passes.
*If
soft ground is encountered or other base material is used the base thickness
should be increased by at least one 100mm layer and the Engineer notified.
WHO TO CONTACT IF YOU REQUIRE FURTHER INFORMATION
The Council's
Housing Advice Centre at: The Deane House, Belvedere Road, Taunton, TA1 1HE.
Tel: 01823 356356.
Opening hours
are:-
Monday to Thursday - 8.30am - 5.00pm (interviews 9.00am - 4.30pm)
Friday - 8.30am - 4.30pm (interviews 9.00am - 4.00pm)
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