diff --git a/src/main/java/com/conveyal/datatools/manager/models/Deployment.java b/src/main/java/com/conveyal/datatools/manager/models/Deployment.java
index 39b0d668e..5b783122a 100644
--- a/src/main/java/com/conveyal/datatools/manager/models/Deployment.java
+++ b/src/main/java/com/conveyal/datatools/manager/models/Deployment.java
@@ -4,7 +4,6 @@
 import com.conveyal.datatools.common.utils.aws.CheckedAWSException;
 import com.conveyal.datatools.common.utils.aws.EC2Utils;
 import com.conveyal.datatools.manager.DataManager;
-import static com.conveyal.datatools.manager.DataManager.getConfigPropertyAsText;
 import com.conveyal.datatools.manager.jobs.DeployJob;
 import com.conveyal.datatools.manager.persistence.Persistence;
 import com.conveyal.datatools.manager.utils.StringUtils;
@@ -42,11 +41,14 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Date;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Locale;
+import java.util.Map;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
 
+import static com.conveyal.datatools.manager.DataManager.getConfigPropertyAsText;
 import static com.mongodb.client.model.Filters.and;
 import static com.mongodb.client.model.Filters.eq;
 
@@ -436,19 +438,43 @@ private <O extends Serializable> String writeToString(O object) {
     }
 
     /** Generate router config for deployment as string. */
-    public byte[] generateRouterConfig() {
+    public byte[] generateRouterConfig() throws IOException {
         Project project = this.parentProject();
-        return customRouterConfig != null
-            ? customRouterConfig.getBytes(StandardCharsets.UTF_8)
-            : project.routerConfig != null
+
+        byte[] customRouterConfigString = customRouterConfig != null
+                ? customRouterConfig.getBytes(StandardCharsets.UTF_8)
+                : null;
+
+        byte[] routerConfigString = project.routerConfig != null
                 ? writeToBytes(project.routerConfig)
                 : null;
+
+        // If both router configs are present, merge the JSON before returning
+        // Merger code from: https://stackoverflow.com/questions/35747813/how-to-merge-two-json-strings-into-one-in-java
+        if (customRouterConfigString != null && routerConfigString != null) {
+            ObjectMapper mapper = new ObjectMapper();
+            Map<String, Object> map1 = mapper.readValue(customRouterConfigString, Map.class);
+            Map<String, Object> map2 = mapper.readValue(routerConfigString, Map.class);
+            Map<String, Object> merged = new HashMap<String, Object>(map2);
+            new HashMap<String, Object>(map2).putAll(map1);
+            return mapper.writeValueAsString(merged).getBytes();
+        }
+
+        return customRouterConfigString != null
+            ? customRouterConfigString
+            : routerConfigString != null
+                ? routerConfigString
+                : null;
     }
 
     /** Generate router config for deployment as byte array (for writing to file output stream). */
     public String generateRouterConfigAsString() {
-        if (customRouterConfig != null) return customRouterConfig;
-        return writeToString(this.parentProject().routerConfig);
+            try {
+                return new String(generateRouterConfig(), StandardCharsets.UTF_8);
+            } catch (IOException e) {
+                LOG.error("Failed to generate router config: ", e);
+                return "";
+        }
     }
 
     /**
diff --git a/src/main/java/com/conveyal/datatools/manager/models/OtpRouterConfig.java b/src/main/java/com/conveyal/datatools/manager/models/OtpRouterConfig.java
index 1a5b342a5..09771fb76 100644
--- a/src/main/java/com/conveyal/datatools/manager/models/OtpRouterConfig.java
+++ b/src/main/java/com/conveyal/datatools/manager/models/OtpRouterConfig.java
@@ -11,16 +11,19 @@
 @JsonIgnoreProperties(ignoreUnknown = true)
 public class OtpRouterConfig implements Serializable {
     private static final long serialVersionUID = 1L;
-    public Integer numItineraries;
-
-    public Double  walkSpeed;
+    public Double driveDistanceReluctance;
 
     public Double stairsReluctance;
 
-    public Double carDropoffTime;
-
     public Collection<Updater> updaters;
 
+    public ItineraryFilter itineraryFilters;
+
+    public static class ItineraryFilter implements Serializable {
+        private static final long serialVersionUID = 1L;
+        public String nonTransitGeneralizedCostLimit;
+    }
+
     public static class Updater implements Serializable {
         private static final long serialVersionUID = 1L;
         public String type;
@@ -31,7 +34,7 @@ public static class Updater implements Serializable {
 
         public String url;
 
-        public String defaultAgencyId;
+        public String feedId;
     }
     
     public String requestLogFile;