diff --git a/terraform/infra-policyengine-api/modules/fastapi_cloudrun/monitoring.tf b/terraform/infra-policyengine-api/modules/fastapi_cloudrun/monitoring.tf
index 6ccd8ae4..a813808d 100644
--- a/terraform/infra-policyengine-api/modules/fastapi_cloudrun/monitoring.tf
+++ b/terraform/infra-policyengine-api/modules/fastapi_cloudrun/monitoring.tf
@@ -117,3 +117,41 @@ resource "google_monitoring_alert_policy" "limit_alert" {
   }
 }
   
+resource "google_monitoring_alert_policy" "simulation_workflow_failure_alert" {
+  project      = var.project_id
+  display_name = "Simulation Workflow Failures"
+  combiner     = "OR"
+
+  conditions {
+    display_name = "Simulation Workflow Failed in Last 5 Minutes"
+    condition_prometheus_query_language {
+      query = <<-EOT
+        increase(workflows_googleapis_com:finished_execution_count{monitored_resource="workflows.googleapis.com/Workflow",status="FAILED"}[5m]) > 1
+      EOT
+      duration = "300s"
+      evaluation_interval = "60s"
+      labels = {
+        severity = "critical"
+      }
+    }
+  }
+
+  notification_channels = local.notification_channels
+
+  documentation {
+    content   = <<-EOT
+      🚨 *Simulation Workflow Failure Alert*
+
+      One or more executions of the simulation workflow failed within the last 5 minutes.
+
+      *Steps:*
+      - Check Cloud Workflows logs: [View Details](https://console.cloud.google.com/workflows/workflow/${var.region}/simulation-workflow/metrics?project=${var.project_id})
+      - Confirm input data
+      - Review recent deploys: [Latest commit](${var.commit_url})
+    EOT
+    mime_type = "text/markdown"
+  }
+
+  enabled = true
+}
+