Steve Earle does lots of modulation on the D (mostly sus2 and 4 from what I can tell)

D
This city won't wash away
This city won't ever drown
Blood in the water, and Hell to pay
Sky tear open and pain rain down

G
Doesn't matter let come what may
Em
I ain't ever gonna leave this town
D
This city won't wash away
This city won't ever drown

D
Ain't the river or the wind to blame
As everybody around here knows
Nothing holding back Pontchartrain
'cept a prayer and a promise's ghost

G
This town's digging our graves 
Em
In solid marble above the ground
D
Maybe our bones will wash away
But this city won't ever drown

D
This city won't ever die
Just as long as our heart beats strong
Like a second line steppin' high
Raisin' hell as we roll along

G
Gentille to Vieux Carre
Em
Lower 9, Central City, Uptown
D
Singing jockamo fee nan?
This city won't ever drown

G
Doesn't matter 'cause there ain't no way
Em
I'm ever gonna leave this town
D
This city won't wash away
This city won't ever drown.