I recall someone asking about this. Following from Geo Nafziger -
CONFEDERATE BATTERIES ON ISLAND NO. 10
24 March, 1862
Battery No. 1 (Redan Fort)
3 x naval iron carriages 8in Columbiads
3 x barbette carriages smoothbore 32lbrs
Battery No. 2
3 x high barbette carriages rifled 32lbrs
1 x high barbette carriage smoothbore 32lbr
Battery No. 3
3 x high barbette carriages rifled 32lbrs
Battery No. 4
3 x high barbette carriages rifled 32lbrs
1 x high barbette carriage 8in Columbiad
Battery No. 5
1 x high barbette carriage 8in Columbiad
1 x high barbette carriage rifled 32lbr
1 medium barbette carriage 8in Columbiad
3 x medium barbette carriage smoothbore 32lbrs
1 x medium barbette carriage gun unspecified
CONFEDERATE BATTERIES ON THE MAINLAND
Battery No. 1 "Belmont Battery"
2 x medium barbette carriages 8in Columbiads
1 x medium barbette carriage Rifled 32lbr
3 x medium barbette carriages smoothbore 32lbrs
Battery No. 2
3 x smoothbore 32lbrs
1 x rifled 24lbr
Battery No. 3
2 x rifled 24lbrs
1 x 8in Columbiad
2 x smoothbore 32lbrs
Battery No. 4
2 x siege carriages 8in howitzers
Battery No. 5
2 x siege carriages 8in howitzers
Floating Battery "New Orleans"
8 x naval iron carriages 8in Columbiads
1 x naval iron carriage – rifled 32lbr