<p>In the present research, effect of using fibers in porous concrete used in surface drainage structures was evaluated. The compressive strength (<i>f</i>_<i>c</i>) and permeability (<i>k</i>) were measured by adding three different types of fiber including poly-propylene (PPF), macro synthetic (MSF) and cotton (CF) to the porous concrete and testing different lengths (<i>L</i>_<i>f</i> = 1, 3 and 5 cm for MSF and CF and 0.6 and 1.2 cm for PPF) and different volume of fibers (<i>V</i>_<i>f</i> = 1%, 2% and 3% of the weight of cement) at the ages of 7, 28 and 90 days. According to the results, the minimum increment of <i>f</i>_<i>c</i> in average at all ages was occurred in porous concrete with <i>V</i>_<i>f</i> = 1% of CF and <i>L</i>_<i>f</i> = 1 cm by about 36%. Moreover, the maximum increment of <i>f</i>_<i>c</i> in average at all ages was observed in porous concrete with <i>V</i>_<i>f</i> = 3% of PPF and <i>L</i>_<i>f</i> = 1.2 cm by about 78%. Also, <i>k</i> was decreased up to about 62% by adding fibers to the porous concrete.</p>