Isotropically reinforced bridge decks have the potential to reduce costs to bridge owners for both construction and maintenance. For long-term serviceability evaluation, 13 such decks in New York State, with reinforcement ratios of 0.36 and 0.24%, have been inspected annually for the past 5 years; 4 of them have been load tested annually since they were constructed, the longest life being 8 years. Generally they have performed satisfactorily. Maximal stresses of bottom transverse rebars under 16-kip wheel loads over the years have always been below allowable levels based on conservative analyses. Rebar stresses in both the isotropic and AASHTO decks in New York State increase with age for the first year or two and remain relatively constant thereafter. Comparison of top-surface transverse cracking between the New York isotropic decks and North Carolina AASHTO decks indicates that the various reinforcement arrangements result in similar cracking severity.