Datum Conversions - Ches Bay Bridge Tunnel (CHBV2)
Flood Level	MLLW	MHHW	NAVD88
Zero MLLW	0.00	-3.03	-1.92
Action	4.50	1.47	2.58
Minor	5.00	1.97	3.08
Moderate	5.50	2.47	3.58
Major	6.00	2.97	4.08