diff --git a/config/projects-prod/dynamic-challenge-project.yaml b/config/projects-prod/dynamic-challenge-project.yaml
new file mode 100644
index 00000000..b59e0da1
--- /dev/null
+++ b/config/projects-prod/dynamic-challenge-project.yaml
@@ -0,0 +1,25 @@
+template:
+  path: tower-project.j2
+stack_name: dynamic-challenge-project
+
+stack_tags:
+  Department: DNT
+  Project: Dynamic Challenge
+  OwnerEmail: thomas.yu@sagebase.org
+  CostCenter: UW/NSF / 507900
+
+parameters:
+  S3ReadWriteAccessArns:
+    - "{{stack_group_config.tower_viewer_arn_prefix}}/brad.macdonald@sagebase.org"
+    - "{{stack_group_config.tower_viewer_arn_prefix}}/thomas.yu@sagebase.org"
+    - "{{stack_group_config.tower_viewer_arn_prefix}}/rchai@sagebase.org"
+  AccountAdminArns:
+    - "{{stack_group_config.sso_admin_role.arn}}"
+    - !stack_output_external sagebase-github-oidc-workflows-prod-nextflow-infra::ProviderRoleArn
+  TemplateRootUrl: "https://{{stack_group_config.admincentral_cf_bucket}}.s3.amazonaws.com"
+  TowerForgePolicyArn: !stack_output_external nextflow-forge-iam-policy::NextFlowForgePolicyArn
+  TowerLaunchPolicyArn: !stack_output_external nextflow-launch-iam-policy::NextFlowLaunchPolicyArn
+
+dependencies:
+  - common/nextflow-forge-iam-policy.yaml
+  - common/nextflow-launch-iam-policy.yaml
diff --git a/config/projects-prod/htan-project.yaml b/config/projects-prod/htan-project.yaml
index 4fcec0bb..583ae785 100644
--- a/config/projects-prod/htan-project.yaml
+++ b/config/projects-prod/htan-project.yaml
@@ -14,6 +14,7 @@ parameters:
     - '{{stack_group_config.tower_viewer_arn_prefix}}/phil.snyder@sagebase.org'
     - '{{stack_group_config.tower_viewer_arn_prefix}}/thomas.yu@sagebase.org'
     - 'arn:aws:sts::888810830951:assumed-role/AWSReservedSSO_Administrator_bf3b4691e22cc3c6/adam.taylor@sagebase.org' # Provides for htan-dev cross-account access
+    - 'arn:aws:sts::526515999252:assumed-role/AWSReservedSSO_S3ExternalCollab_40c062f682e7f3f5/adam.taylor@sagebase.org' # Provides access to HTAN buckets in SciComp
   AllowSynapseIndexing: Enabled
   AccountAdminArns:
     - '{{stack_group_config.sso_admin_role.arn}}'