County, city combine to combat flooding Posted in: News ANDERSON — Grimes County opted to enter into an agreement with the city of Navasota to help cover half the cost of a drainage study with the Corps of Engineers (COE) not to exceed $136,125.00 during a commissioners court meeting Wednesday. Navasota currently has an agreement for the drainage study with ...PLEASE LOG IN FOR PREMIUM CONTENT. Our website requires visitors to log in to view the best local news. Not yet a subscriber? Subscribe today!