air_gap

under discussion
Created: Aug. 6, 2019
Proposer: Aaron D. Sweeney
Proposed Date: 2019-07-24
Change Date: Aug. 6, 2019, 11:36 a.m.
Term: air_gap
Unit: m
Unit ref: ULAA
AMIP:
GRIB:
The air gap is the clearance (vertical distance) between the instantaneous height of the designated low steel value of a bridge and the instantaneous sea surface height. The height of the designated low steel value of a bridge may change due to traffic or other loads.