NOTE: If some of the data are red in the plots above, the 'flag for attention' is set. Please see the documentation below.
Link to RLR information.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-JUN-91 : Sultan Shoal 555/021 RLR(1986) is 10.2m below Brass Bolt =========================== BENCHMARK INFORMATION UPDATE ADDED 12-JUL-93 : Sultan Shoal 555/021 RLR(1986) is 10.2m below Brass Bolt =========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Oct-2010 : Benchmark for the period 1969-1979 was Dampier Survey 'T' mark 6.500m above Datum 1969-1985. 1980-1985 benchmark was Brass Bolt 5.004m above Datum 1969-1985. 1986 onwards the ACD changed to 4.922m below the Brass Bolt. In 2009 a new jetty was re-constructed ACD remained the same while Primary benchmark is now Cut Mark 4.941m above ACD. Because of the building of the new jetty there is a gap in the data Jan 2008- Sept 2009.
Maritime Port Authority of Singapore Hydrographic Department 460 Alexandra Road, PSA Building #20-00 Singapore 119963 SINGAPORE