Show I COSTLY MISTAKE Of HARRIMAN ENGINEER PORTLAND Or May l 7 Considerable delay and large additional expenditure will be Involved In In the construction of If the Union Pa Pacific tunnel Into Tacoma as the result of ot an engineering error which causes two shafts at the river near the middle of the tunnel to miss meeting by eight feet according to specifications The tunnel i is in over 2000 feet teet Two shafts were sunk to a n. depth of sixty feet at the Immediate approach to the line Une of ot the underground curve in the big bore The shafts are about feet apart Forces of workmen excavating In opposite directions from the two shafts met Wednesday when it was found that one of ot the lines JInes deviating from the origInal original inal inai survey only a few inches at the starting point had widened until it was eight feet from the proper survey It is said that it will cost several thousand dollars to re-excavate re the section of ot the tunnel along the proper lines |