I’m installing a new asphalt driveway (4″ base, 2″ asphalt) that will run 80 feet in from street, then open into large parking area (55′ x 30′) at the rear of the house. (Please see attached diagram, not to scale.) The driveway will be lined with belgian block throughout, which will eliminate runoff to the sides.
In getting estimates, all paving contractors stated that a drain (cesspool) should be located in front of/near the garage door area to deal with water runoff.
My questions to the pro’s here:
1. Is a drain really recommended? If so, what capacity?
2. I’d prefer that the parking space in front of the garage not acquire the appearance of a “bowl” with a drain in the middle (Circle “A” on the plan.) Can the drain be installed without a dip – flat on flat – and still be effective? If not, what’s the recommended pitch?
3. If the drain is located farther away from the house and garage at spot “B” (see plan) what’s the recommended pitch away from the house?
Any other thoughts or suggestions greatly appreciated. Thanks in advance.