§ 391. Rates of toll on motor vehicles. Where a different rate is not
otherwise prescribed or permitted by law, any person or corporation
maintaining a plank road, turnpike road or bridge and authorized, or
which shall be hereafter authorized, to receive tolls for the passage of
motor vehicles over the same, may charge and receive for each and every
motor vehicle propelled by any power other than animal power, passing
over the same, a toll rate not greater than the maximum rate allowed by
law to be charged and received for the passage of a vehicle drawn over
such road or bridge by two animals, provided that for such motor
vehicles designed to carry only two persons the rate of toll charged or
received shall not exceed the maximum rate allowed by law to be charged
and received for the passage of a vehicle drawn over such road or
bridge, without a load, by a single animal.