This researchdeals with the topic of controlling the cost of concrete bridge projects in
the early design phase. The research aims at using cost controlling as an auxiliary tool for
designing and decision making.Cost control methodology has been pr
oposed based on
modeling the elements of structure, and proposing a method forcost estimate. This method
based on estimating of quantitiesfrom the general parameters of the structure and prices are
being updated periodically.The proposed methodology studiesmany available alternatives
that werechosen by the designer andevaluate thesealternativeseconomically.