diff --git a/src/db/migrations/007_metadata_thalweg.sql b/src/db/migrations/007_metadata_thalweg.sql
new file mode 100644
index 00000000..cabf7b55
--- /dev/null
+++ b/src/db/migrations/007_metadata_thalweg.sql
@@ -0,0 +1,3 @@
+-- Description: add field metadata to the thalweg
+-- Date: 2023-09-07
+ALTER TABLE thalwegs ADD COLUMN metadata TEXT;
diff --git a/src/db/schema.sql b/src/db/schema.sql
index 05d0e5e2..dcc2156d 100644
--- a/src/db/schema.sql
+++ b/src/db/schema.sql
@@ -11,6 +11,7 @@ INSERT INTO migrations (file_name) VALUES ('003_metrics_update.sql');
 INSERT INTO migrations (file_name) VALUES ('004_metadata.sql');
 INSERT INTO migrations (file_name) VALUES ('005_raster_symbology.sql');
 INSERT INTO migrations (file_name) VALUES ('006_layer_metadata.sql');
+INSERT INTO migrations (file_name) VALUES ('007_metadata_thalweg.sql');
 
 -- LOOKUP TABLES
 CREATE TABLE protocols (
@@ -578,6 +579,7 @@ INSERT INTO lkp_thalweg_types (id, name) VALUES (2, 'Non-Primary');
 ALTER TABLE thalwegs ADD COLUMN event_id INTEGER REFERENCES events(id) ON DELETE CASCADE;
 ALTER TABLE thalwegs ADD COLUMN type_id INTEGER REFERENCES lkp_thalweg_types(id);
 ALTER TABLE thalwegs ADD description TEXT;
+ALTER TABLE thalwegs ADD COLUMN metadata TEXT;
 
 -- active extents
 CREATE TABLE lkp_active_extent_types (