Initializing an array

I have an array that needs to be initialized 1096 times, I don't want to use a cfloop because I am looking for a better performance. So I use a query that brings all the records that have been initialized, the problem is if some of them hasn't been initialized and I use some conditionals as CFIF the application will throw an error because the specified position into the array doesn't exist yet.

Here's my code.

<cfquery name="lista_espacios" datasource="#Application.BD#">
SELECT ISNULL(id_espacio,0) as id_espacio, ruta, url, alt FROM ESPACIOS
ORDER BY id_espacio
</cfquery>
<cfloop query="lista_espacios">
<cfset lista[lista_espacios.id_espacio][1] = lista_espacios.id_espacio>
<cfset lista[lista_espacios.id_espacio][2] = lista_espacios.ruta>
<cfset lista[lista_espacios.id_espacio][3] = lista_espacios.url>
<cfset lista[lista_espacios.id_espacio][4] = lista_espacios.alt>
</cfloop>
<cfset cont=1>
<cfif #lista[cont][1]# EQ #cont# ><a href="#lista[cont][3]#" onclick="abrirURL(#lista[cont][1]#);" target="_blank"><img style="border:0px" width="13" height="13" src="#lista[cont][2]#" title="#lista[cont][4]#" alt="#lista[cont][4]#" />
</a>
<cfelse>
<img width="13" height="13" src="img/bad.jpg" />

</cfif>
<cfset cont = #cont#+1>