this creek is typical of a "texas creek" it is an unnamed creek which flows maybe twenty five miles through the country side draining thousands of acres - when it rains is is a mighty flooding giant(5% of the time)- the other times in texas drought it just basically has water in it, some deep pools, some dry spots. It enters my property and runs along the north boundry for about 800 feet, then turns south and continues for about 700 feet and then exits my property- a twenty acre tract that I am developing for future sale. So it basically cuts this twenty acre tract in half. It is about forty feet wide with banks 12-15 feet high. I can, at will, push dirt around and make my self a crossing but want to try to lay something down that will stay- with maintenance- it may be impossible for the volume and velocity that can be generated in a significant rain event or season is tremendous. none the less, where this creeks bends and goes south is my picked area. so i plan to dig a footing on the upstream side about four feet wide and four feet deep and fill it with 12 or 14 size rip rap and then covering those boulders with another layer extending up both bank sides and then placing some really big rocks on top of that to form a wall where the rushing water will impact my crossing -which i plan to be imbedded 5-8 rip rap, mixed with 3-5 rip rap. Then on the downstream exiting side strew large boulders. anyway that is my thinking at this juncture- dryer than hell in central texas but one good 10 inch rain will cure all that!!!!!!!!!!!