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 proposed 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.