Apparent salt damage mitigated by pneumatic-tyred rolling. The runway surface elevations vary from RL 1.22 to RL 1.53. The highest astronomical tide at Onslow (Beadon Creek) is RL 1.44 (above one end of the runway). The maximum recorded tide (period 1985 to 2010) is RL 1.77 (above both ends of the runway).  

Context in source publication

Context 1

... with Shire staff indicate this pavement was constructed decades ago using fresh water. Even so, salt damage was still present in the form of blistering ( Figure 5), and the mitigation approach adopted by the Shire was to roll periodically with a pneumatic multi-tyred roller ( Figure 6). The spray seal could be a single seal, rather than the more usual airfield double or triple seal. ...