Fire crews are keeping an eye on the site of Thursday afternoon’s blaze that involved a lumber mill near Dallesport.  Dallesport-Murdock Fire District Chief Rhet Howard says the Tidyman Road Fire is contained and being allowed to burn itself out.  He also downgraded the estimated size of the fire Friday morning to five acres.  Howard says the fire started Thursday afternoon when the engine of a semi-truck caught fire.  That was quickly extinguished, but sparks spread into nearby lumber products that caught fire.  Howard says all of the buildings at the mill were protected, except for the loss of one pole barn-type structure.  Embers spread by high winds sparked a fire to a structure nearby, but Howard said that was also put out quickly, and there were some spot fires on the east side of Highway 197.  Statewide assistance was mobilized on Thursday night to assist local crews, and Howard said they will depart later Friday afternoon.  Washington State Patrol Chief John Batiste authorized the mobilization Thursday evening at the request of Dallesport-Murdock Fire Chief Rhett Howard.  No injuries were reported as a result of the fire, and there is no damage estimate at this time.