diff --git a/web/src/App.svelte b/web/src/App.svelte
index 7ec70e0..bdadef2 100644
--- a/web/src/App.svelte
+++ b/web/src/App.svelte
@@ -21,6 +21,7 @@
   let route_b = null;
   let route_gj = null;
   let route_err = "";
+  let showSeverances = true;
 
   onMount(async () => {
     await init();
@@ -117,6 +118,10 @@
     />
 
     {#if mode == "route"}
+      <label>
+        <input type="checkbox" bind:checked={showSeverances} />
+        Show severances
+      </label>
       {#if route_err}
         <p>{route_err}</p>
       {/if}
@@ -140,7 +145,7 @@
     >
       {#if model}
         {#if mode == "route"}
-          <NetworkLayer {model} />
+          <NetworkLayer {model} {showSeverances} />
           <RouteLayer bind:route_a bind:route_b {route_gj} />
         {:else if mode == "score"}
           <ScoreLayer {model} />
diff --git a/web/src/NetworkLayer.svelte b/web/src/NetworkLayer.svelte
index 154c8e8..50f9faf 100644
--- a/web/src/NetworkLayer.svelte
+++ b/web/src/NetworkLayer.svelte
@@ -3,6 +3,8 @@
   import { constructMatchExpression } from "./common";
 
   export let model;
+  // TODO Use filter expressions?
+  export let showSeverances: boolean;
 </script>
 
 <GeoJSON data={JSON.parse(model.render())}>
@@ -22,6 +24,15 @@
         },
         "yellow"
       ),
+      "line-opacity": showSeverances
+        ? 1.0
+        : constructMatchExpression(
+            ["get", "kind"],
+            {
+              Severance: 0.0,
+            },
+            1.0
+          ),
     }}
     on:click={(e) => window.open(e.detail.features[0].properties.way, "_blank")}
     hoverCursor="pointer"