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

D5
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

G5
Doesn't matter let come what may
E5
I ain't ever gonna leave this town
D5
This city won't wash away
This city won't ever drown

D5
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

G5
This town's digging our graves 
E5
In solid marble above the ground
D5
Maybe our bones will wash away
But this city won't ever drown

D5
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

G5
Gentille to Vieux Carre
E5
Lower 9, Central City, Uptown
D5
Singing jockamo fee nan?
This city won't ever drown

G5
Doesn't matter 'cause there ain't no way
E5
I'm ever gonna leave this town
D5
This city won't wash away
This city won't ever drown.