The article reviews how concrete bridge decks are designed on wide-flange prestressed-T girders. Current methods often overestimate the reinforcement needed for the deck, assuming it is continuously supported at the center of the girders. A new approach considers the girder flange stiffness, which results in less reinforcement needed for the deck. Comparing the two methods, it was found that the conventional design requires significantly more reinforcement than the one considering girder flange stiffness. This suggests that considering girder flanges in bridge deck design can lead to more efficient use of materials.