Planned live testing of the Hood River Interstate Bridge lift span has been pushed back by about a month.  Port of Hood River Executive Director Michael McElwee says that’s based on feedback from inspectors who looked at the mechanical and electrical systems of the lift span last week.  They found the postponement will allow a couple of other tasks related to the lift span skew system to be carried out.  Live testing involves gradual raisings of the lift span until reaching its full height, with engineers examining at each step to see if the span is out of alignment.  The live testing had been planned for late May, but McElwee says they will probably take place in mid-June.