I have a large asphalt driveway that dips slightly toward my garage/barn. The driveway side resembles a 5 space carport (50 feet in length across the front), then a wall in the middle and on the other side of the wall are my horse stalls. When it rains the water runs down the driveway into the carport side and under the wall making very messy stalls.

The only idea I have been able to come up with is something on the ground like a speed bump across the front that would keep the water out. I've checked web sites and that's a bit cost prohibitive.

Anyone else have any ideas on how to divert this water (especially since we are suppose to get another 1-3 inches of rain this weekend)or how to build a speed bump?