Does anyone know of any places on the Brazos River that allow access to launch a flat bottom boat? I'm willing to pay if the access is on private property.

I don't know how far you want to drive, but the highway 7 bridge by Marlin has a ramp. Also I think the fm 979 bridge near Calvert does as well.

Hwy 21 bridge...but only if you have help.

They actually bulldozed a ramp at the hwy 21 bridge, but the recent floods made it almost impossible to get down. I've heard of people leasing their property just for access to the Brazos, but I've been unable to find contact information.

West of Navasota on 105, the highway crosses both the Navasota and brazos, and you have access below both bridges that is doable for a jonboat.

You might check out Batt's Ferry Road southwest of cstat

Batts ferry road access has a steep climb down that would be almost impossible for a boat with a motor. The brazos river has such steep walls, that finding a boat launch is almost impossible. If you take university drive west until it crosses the brazos, you may find access on the north side. I think that is your best bet.

Do any of yall know a land owner that would lease their land for fishing on the Brazos?