Cheapeake Bay Bridge Tunnel (near CHBV2) 2018 adjusted tidal epoch
Exceedence Probability	Return Frequency	Ft./MLLW	Ft./MHHW	Ft. NAVD88	Last Occurred	MLLW Level (ft)	Event  (blue denotes Tropical)
1%	100 yr	7.98	4.95
2%	50 year	7.46	4.43
4%	25 year	7.13	4.10
10%	10 year	6.47	3.44		9/6/2019	6.63	Hurricane Dorian
20%	5 year	5.98	2.95		11/17/2019	5.88
50%	2 year	5.33	2.30
99%	1 year	4.83	1.80
Purple Shading indicates "MAJOR" Flooding		Red Shading indicates "MODERATE Flooding				Orange Shading Indicates "MINOR" Flooding