Vehicular access from the project site to the rest of the street system shall be provided. When the connecting streets between the project site and the nearest hard-surfaced street do not meet the Fire Code requirements for fire access, the project owner shall upgrade the streets as follows:

• For one or two dwelling units or single family homes, a crushed rock roadway at least 16 feet wide shall be provided; all other types of development shall provide a paved roadway at least 20 feet wide, unless there is an existing hard-surfaced roadway at least 18 feet wide.
  
• New roadway improvements shall be graded to the future street elevations (as shown on the Building Grade Sheet) with a thickened edge provided for drainage. The connecting roadway shall be paved at least 100 feet beyond the project boundary. If more than 100 feet of connecting roadway improvement is required, the remainder may be crushed rock if approved by the Fire Department.

Crushed rock is not allowed when the roadway grade exceeds 10%.