=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991 Ubli 280/056 RLR(1987) is 9.8m below BM =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Jul-1993 Ubli 280/056 RLR(1987) is 9.8m below BM =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Jan-1996 gauge destroyed 2 September 1991 =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Jan-1996 PRIOR TO 1990 DATA FROM AUTH 26 =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 20-Jan-2011 According to the original RLR diagram this gauge was destroyed in 1991.