diff --git a/neutron_lbaas/db/migration/alembic_migrations/versions/364f9b6064f0_agentv2.py b/neutron_lbaas/db/migration/alembic_migrations/versions/364f9b6064f0_agentv2.py
index 7253770fc..94ce16aa3 100755
--- a/neutron_lbaas/db/migration/alembic_migrations/versions/364f9b6064f0_agentv2.py
+++ b/neutron_lbaas/db/migration/alembic_migrations/versions/364f9b6064f0_agentv2.py
@@ -38,7 +38,3 @@ def upgrade():
         sa.ForeignKeyConstraint(['agent_id'], ['agents.id'],
                                 ondelete='CASCADE'),
         sa.PrimaryKeyConstraint('loadbalancer_id'))
-
-
-def downgrade():
-    op.drop_table('lbaas_loadbalanceragentbindings')
diff --git a/neutron_lbaas/db/migration/alembic_migrations/versions/4b6d8d5310b8_add_index_tenant_id.py b/neutron_lbaas/db/migration/alembic_migrations/versions/4b6d8d5310b8_add_index_tenant_id.py
index b46c2f62a..f1849087a 100644
--- a/neutron_lbaas/db/migration/alembic_migrations/versions/4b6d8d5310b8_add_index_tenant_id.py
+++ b/neutron_lbaas/db/migration/alembic_migrations/versions/4b6d8d5310b8_add_index_tenant_id.py
@@ -36,9 +36,3 @@ def upgrade():
     for table in TABLES:
         op.create_index(op.f('ix_%s_tenant_id' % table),
                         table, ['tenant_id'], unique=False)
-
-
-def downgrade():
-    for table in TABLES:
-        op.drop_index(op.f('ix_%s_tenant_id' % table),
-                      table_name=table)
diff --git a/neutron_lbaas/db/migration/alembic_migrations/versions/4ba00375f715_edge_driver.py b/neutron_lbaas/db/migration/alembic_migrations/versions/4ba00375f715_edge_driver.py
index 0546508c3..7ca278dd6 100644
--- a/neutron_lbaas/db/migration/alembic_migrations/versions/4ba00375f715_edge_driver.py
+++ b/neutron_lbaas/db/migration/alembic_migrations/versions/4ba00375f715_edge_driver.py
@@ -60,9 +60,3 @@ def upgrade():
         sa.UniqueConstraint('monitor_id', 'edge_id',
                             name='uniq_nsxv_edge_monitor_mappings')
     )
-
-
-def downgrade():
-    op.drop_table('nsxv_edge_pool_mappings')
-    op.drop_table('nsxv_edge_vip_mappings')
-    op.drop_table('nsxv_edge_monitor_mappings')
diff --git a/neutron_lbaas/db/migration/alembic_migrations/versions/4deef6d81931_add_provisioning_and_operating_statuses.py b/neutron_lbaas/db/migration/alembic_migrations/versions/4deef6d81931_add_provisioning_and_operating_statuses.py
index 42362a4b9..cc2fc0378 100644
--- a/neutron_lbaas/db/migration/alembic_migrations/versions/4deef6d81931_add_provisioning_and_operating_statuses.py
+++ b/neutron_lbaas/db/migration/alembic_migrations/versions/4deef6d81931_add_provisioning_and_operating_statuses.py
@@ -75,35 +75,3 @@ def upgrade():
         u'lbaas_healthmonitors',
         sa.Column(PROVISIONING_STATUS, sa.String(16), nullable=False)
     )
-
-
-def downgrade():
-    op.add_column(
-        u'lbaas_loadbalancers',
-        sa.Column(STATUS, sa.String(16), nullable=False)
-    )
-    op.drop_column(u'lbaas_loadbalancers', PROVISIONING_STATUS)
-    op.drop_column(u'lbaas_loadbalancers', OPERATING_STATUS)
-    op.add_column(
-        u'lbaas_listeners',
-        sa.Column(STATUS, sa.String(16), nullable=False)
-    )
-    op.drop_column(u'lbaas_listeners', PROVISIONING_STATUS)
-    op.drop_column(u'lbaas_listeners', OPERATING_STATUS)
-    op.add_column(
-        u'lbaas_pools',
-        sa.Column(STATUS, sa.String(16), nullable=False)
-    )
-    op.drop_column(u'lbaas_pools', PROVISIONING_STATUS)
-    op.drop_column(u'lbaas_pools', OPERATING_STATUS)
-    op.add_column(
-        u'lbaas_members',
-        sa.Column(STATUS, sa.String(16), nullable=False)
-    )
-    op.drop_column(u'lbaas_members', PROVISIONING_STATUS)
-    op.drop_column(u'lbaas_members', OPERATING_STATUS)
-    op.add_column(
-        u'lbaas_healthmonitors',
-        sa.Column(STATUS, sa.String(16), nullable=False)
-    )
-    op.drop_column(u'lbaas_healthmonitors', PROVISIONING_STATUS)
diff --git a/neutron_lbaas/db/migration/alembic_migrations/versions/lbaasv2.py b/neutron_lbaas/db/migration/alembic_migrations/versions/lbaasv2.py
index 1a3eface5..630a0a467 100644
--- a/neutron_lbaas/db/migration/alembic_migrations/versions/lbaasv2.py
+++ b/neutron_lbaas/db/migration/alembic_migrations/versions/lbaasv2.py
@@ -151,18 +151,3 @@ def upgrade():
         sa.ForeignKeyConstraint([u'loadbalancer_id'],
                                 [u'lbaas_loadbalancers.id'])
     )
-
-
-def downgrade():
-    op.drop_table(u'lbaas_loadbalancer_statistics')
-    op.drop_table(u'lbaas_listeners')
-    listener_protocols.drop(op.get_bind(), checkfirst=False)
-    op.drop_table(u'lbaas_loadbalancers')
-    op.drop_table(u'lbaas_members')
-    op.drop_table(u'lbaas_sessionpersistences')
-    sesssionpersistences_type.drop(op.get_bind(), checkfirst=False)
-    op.drop_table(u'lbaas_pools')
-    pool_protocols.drop(op.get_bind(), checkfirst=False)
-    lb_algorithms.drop(op.get_bind(), checkfirst=False)
-    op.drop_table(u'lbaas_healthmonitors')
-    healthmonitors_type.drop(op.get_bind(), checkfirst=False)
diff --git a/neutron_lbaas/db/migration/alembic_migrations/versions/lbaasv2_tls.py b/neutron_lbaas/db/migration/alembic_migrations/versions/lbaasv2_tls.py
index 427408721..678982e55 100644
--- a/neutron_lbaas/db/migration/alembic_migrations/versions/lbaasv2_tls.py
+++ b/neutron_lbaas/db/migration/alembic_migrations/versions/lbaasv2_tls.py
@@ -52,10 +52,3 @@ def upgrade():
     op.add_column('lbaas_listeners',
                   sa.Column(u'default_tls_container_id', sa.String(128),
                             nullable=True))
-
-
-def downgrade():
-    migration.alter_enum('lbaas_listeners', 'protocol', old_listener_protocols,
-                         nullable=False)
-    op.drop_table('lbaas_sni')
-    op.drop_column('lbaas_listeners', 'default_tls_container_id')
diff --git a/neutron_lbaas/db/migration/alembic_migrations/versions/start_neutron_lbaas.py b/neutron_lbaas/db/migration/alembic_migrations/versions/start_neutron_lbaas.py
index e1075c933..40b2b0530 100644
--- a/neutron_lbaas/db/migration/alembic_migrations/versions/start_neutron_lbaas.py
+++ b/neutron_lbaas/db/migration/alembic_migrations/versions/start_neutron_lbaas.py
@@ -28,7 +28,3 @@ down_revision = None
 
 def upgrade():
     pass
-
-
-def downgrade():
-    pass