Roads were/are built with ditches for drainage purposes.
Roads were/are built with ditches for drainage purposes.
Roads were/are built with ditches for drainage purposes.
Roads were/are built with ditches for drainage purposes.
Roads were/are built with ditches for drainage purposes.
Roads were/are built with ditches for drainage purposes.
Roads were/are built with ditches for drainage purposes.
Roads were/are built with ditches for drainage purposes.
Roads were/are built with ditches for drainage purposes.