Nacogdoches Police Step Up Enforcement On 59/I69 If you are coming to, or leaving Nacogdoches take special care that you are observing posted speed limits. Construction continues on what will one day be I69. The speed limit has gone down to 45 in the area now, since most of it is a construction zone. Based on officers' observations and input from the community we are going to place additional police resources in the area to slow traffic down to the posted speed limits. Remember this area is under construction. Please slow down and obey all traffic control devices. As always leave earlier, drive slower, and get there safe.