In the wake of load testing activities on the Port of Hood River Interstate Bridge causing significant traffic backups on Interstate 84 and Highway 14 on Wednesday, the testing schedule has been altered to eliminate one full day of closures.  The bridge will now be fully closed to all traffic twice on Monday, from 10 a.m. to 11 a.m. and 2 p.m. to 3 p.m., with no full closures scheduled for Wednesday of next week as originally planned.  In response to a lowered load rating imposed by the Oregon Department of Transportation in March, the Port of Hood River has been conducting extensive live load testing on the bridge since last Saturday.  Test results will help determine if it is feasible to restore the prior weight limit for larger commercial trucks and emergency vehicles.  Wireless communications of the testing equipment malfunctioned on Wednesday and extended the closure schedule, leading to the traffic backups.