Mich. Admin. Code R. 247.247

Current through Vol. 24-21, December 1, 2024

Section R. 247.247 - Residential driveways; number and separation

Rule 47. The number of residential driveways permitted shall be determined as follows:

(a) One residential driveway shall be permitted for each platted lot or for unplatted residential property with less than 100 feet of frontage.

(b) One additional residential driveway may be permitted for residential property for each 70 feet of frontage in excess of the first 100 feet of frontage.

(c) Two residential driveways may be permitted on the same property, in lieu of the requirements of paragraph (b), to serve a circle driveway if the frontage of the property is 80 feet or more.

(d) Residential driveways on the same property shall be at least 45 feet apart, center-to-center.

Figure for 247.247

TABLE 5

DUAL SERVICE DRIVEWAYS
Design Features			Curbed Highway		Uncurbed Highway
Design Features			Standard	Range	Standard	Range
Right Driveway	Intersecting Angle	A_R	60*	45 to 90*	60*	45 to 90*
	Entering Radius	C_R	15 ft	5 to 50 ft	20 ft	5 to 50 ft
	Exiting Radius	D_R	10 ft	5 to 2.* ft	5 ft	5 to 25 ft
Left Driveway	Intersecting Angle	A_L	120"	90 to 135*	120*	90 to 135*
	Entering Radius	C_L	10 ft	5 to 25 ft	5 ft	5 to 25 ft
	Exiting Radius	D_L	15 ft	5 to 50 ft	20 ft	5 to 50 ft
Driveway Width		B	30 ft	12 10 50 ft	30 ft	15 to 50 ft
Distance Between Driveways		S	20 ft	10 to 150 ft	20 ft	10 to 150 ft
the standard shall be used unless engineering judgment determines than another dimension within the range is more suitable for a panicuiar site or special condition and is approved by the department.

Mich. Admin. Code R. 247.247

1979 AC