diff --git a/game/src/edit/mod.rs b/game/src/edit/mod.rs
index bf2174de5e..f9b80a82d4 100644
--- a/game/src/edit/mod.rs
+++ b/game/src/edit/mod.rs
@@ -222,6 +222,17 @@ impl State for EditMode {
                     apply_map_edits(&mut ui.primary, &ui.cs, ctx, new_edits);
                 }
             }
+            if !ui.primary.map.get_i(id).is_closed()
+                && ctx
+                    .input
+                    .contextual_action(Key::C, "close for construction")
+            {
+                let mut new_edits = orig_edits.clone();
+                new_edits.stop_sign_overrides.remove(&id);
+                new_edits.traffic_signal_overrides.remove(&id);
+                new_edits.intersections_under_construction.insert(id);
+                apply_map_edits(&mut ui.primary, &ui.cs, ctx, new_edits);
+            }
         }
 
         Transition::Keep
diff --git a/game/src/render/intersection.rs b/game/src/render/intersection.rs
index 0a7001d853..dd26f94cc4 100644
--- a/game/src/render/intersection.rs
+++ b/game/src/render/intersection.rs
@@ -36,6 +36,8 @@ impl DrawIntersection {
         default_geom.push(
             if i.is_border() {
                 cs.get_def("border intersection", Color::rgb(50, 205, 50))
+            } else if i.is_closed() {
+                cs.get("construction background")
             } else {
                 cs.get_def("normal intersection", Color::grey(0.2))
             },
@@ -78,6 +80,9 @@ impl DrawIntersection {
                     }
                 }
             }
+            IntersectionType::Construction => {
+                default_geom.push(cs.get("construction hatching"), i.polygon.clone());
+            }
             IntersectionType::TrafficSignal => {}
         }
 
diff --git a/game/src/render/lane.rs b/game/src/render/lane.rs
index 200a3b9755..9a69cf67ed 100644
--- a/game/src/render/lane.rs
+++ b/game/src/render/lane.rs
@@ -53,7 +53,9 @@ impl DrawLane {
                 LaneType::Sidewalk => cs.get_def("sidewalk", Color::grey(0.8)),
                 LaneType::Biking => cs.get_def("bike lane", Color::rgb(15, 125, 75)),
                 LaneType::SharedLeftTurn => cs.get("driving lane"),
-                LaneType::Construction => cs.get_def("construction lane", Color::rgb(255, 109, 0)),
+                LaneType::Construction => {
+                    cs.get_def("construction background", Color::rgb(255, 109, 0))
+                }
             },
             polygon.clone(),
         );
diff --git a/game/src/render/map.rs b/game/src/render/map.rs
index f181a0afcc..7062827b44 100644
--- a/game/src/render/map.rs
+++ b/game/src/render/map.rs
@@ -131,6 +131,8 @@ impl DrawMap {
         intersection_refs.sort_by_key(|i| i.get_zorder(map));
         let mut all_intersections = GeomBatch::new();
         for i in intersection_refs {
+            // TODO Would be neat to show closed intersections here, but then edits need to
+            // regenerate this
             if i.is_stop_sign() {
                 all_intersections.push(osm_rank_to_color(cs, i.get_rank(map)), i.polygon.clone());
                 if false {
diff --git a/map_model/src/edits.rs b/map_model/src/edits.rs
index 1ee9796f0d..4252588cfe 100644
--- a/map_model/src/edits.rs
+++ b/map_model/src/edits.rs
@@ -1,7 +1,7 @@
 use crate::{ControlStopSign, ControlTrafficSignal, IntersectionID, LaneID, LaneType};
 use abstutil::Timer;
 use serde_derive::{Deserialize, Serialize};
-use std::collections::BTreeMap;
+use std::collections::{BTreeMap, BTreeSet};
 
 #[derive(Serialize, Deserialize, Debug, Clone)]
 pub struct MapEdits {
@@ -14,6 +14,7 @@ pub struct MapEdits {
     // TODO Storing the entire thing is maybe a bit dramatic, but works for now.
     pub stop_sign_overrides: BTreeMap<IntersectionID, ControlStopSign>,
     pub traffic_signal_overrides: BTreeMap<IntersectionID, ControlTrafficSignal>,
+    pub intersections_under_construction: BTreeSet<IntersectionID>,
 
     #[serde(skip_serializing, skip_deserializing)]
     pub dirty: bool,
@@ -29,6 +30,7 @@ impl MapEdits {
             contraflow_lanes: BTreeMap::new(),
             stop_sign_overrides: BTreeMap::new(),
             traffic_signal_overrides: BTreeMap::new(),
+            intersections_under_construction: BTreeSet::new(),
             dirty: false,
         }
     }
diff --git a/map_model/src/intersection.rs b/map_model/src/intersection.rs
index f4c221689c..3e07f6b611 100644
--- a/map_model/src/intersection.rs
+++ b/map_model/src/intersection.rs
@@ -21,6 +21,7 @@ pub enum IntersectionType {
     StopSign,
     TrafficSignal,
     Border,
+    Construction,
 }
 
 #[derive(Serialize, Deserialize, Debug)]
@@ -47,6 +48,10 @@ impl Intersection {
         self.intersection_type == IntersectionType::Border
     }
 
+    pub fn is_closed(&self) -> bool {
+        self.intersection_type == IntersectionType::Construction
+    }
+
     pub fn is_stop_sign(&self) -> bool {
         self.intersection_type == IntersectionType::StopSign
     }
diff --git a/map_model/src/map.rs b/map_model/src/map.rs
index a75024fed7..8d4a7f71f2 100644
--- a/map_model/src/map.rs
+++ b/map_model/src/map.rs
@@ -114,7 +114,7 @@ impl Map {
                     IntersectionType::TrafficSignal => {
                         traffic_signals.insert(i.id, ControlTrafficSignal::new(&m, i.id, timer));
                     }
-                    IntersectionType::Border => {}
+                    IntersectionType::Border | IntersectionType::Construction => {}
                 };
             }
             m.stop_signs = stop_signs;
@@ -650,6 +650,7 @@ impl Map {
         let mut all_stop_sign_edits: BTreeMap<IntersectionID, ControlStopSign> = BTreeMap::new();
         let mut all_traffic_signals: BTreeMap<IntersectionID, ControlTrafficSignal> =
             BTreeMap::new();
+        let mut all_closed_intersections: BTreeSet<IntersectionID> = BTreeSet::new();
         for (id, lt) in &new_edits.lane_overrides {
             if self.edits.lane_overrides.get(id) != Some(lt) {
                 all_lane_edits.insert(*id, *lt);
@@ -670,6 +671,11 @@ impl Map {
                 all_traffic_signals.insert(*id, ts.clone());
             }
         }
+        for id in &new_edits.intersections_under_construction {
+            if !self.edits.intersections_under_construction.contains(id) {
+                all_closed_intersections.insert(*id);
+            }
+        }
 
         // May need to revert some previous changes
         for id in self.edits.lane_overrides.keys() {
@@ -692,13 +698,20 @@ impl Map {
                 all_traffic_signals.insert(*id, ControlTrafficSignal::new(self, *id, timer));
             }
         }
+        // TODO Be able to un-close intersections
+        /*for id in &self.edits.intersections_under_construction {
+            if !new_edits.intersections_under_construction.contains(id) {
+                all_closed_intersections.insert(*id);
+            }
+        }*/
 
         timer.note(format!(
-            "Total diff: {} lane types, {} contraflow lanes, {} stop signs, {} traffic signals",
+            "Total diff: {} lane types, {} contraflow lanes, {} stop signs, {} traffic signals, {} closed intersections",
             all_lane_edits.len(),
             all_contraflow_lanes.len(),
             all_stop_sign_edits.len(),
-            all_traffic_signals.len()
+            all_traffic_signals.len(),
+            all_closed_intersections.len(),
         ));
 
         let mut changed_lanes = BTreeSet::new();
@@ -797,6 +810,10 @@ impl Map {
                 delete_turns.insert(id);
             }
 
+            if i.is_closed() {
+                continue;
+            }
+
             for t in make::make_all_turns(i, &self.roads, &self.lanes, timer) {
                 add_turns.insert(t.id);
                 i.turns.push(t.id);
@@ -818,7 +835,7 @@ impl Map {
                     self.traffic_signals
                         .insert(id, ControlTrafficSignal::new(self, id, timer));
                 }
-                IntersectionType::Border => unreachable!(),
+                IntersectionType::Border | IntersectionType::Construction => unreachable!(),
             }
         }
 
@@ -842,6 +859,14 @@ impl Map {
                 changed_lanes.insert(*l);
             }
         }
+        for id in all_closed_intersections {
+            let i = &mut self.intersections[id.0];
+            i.intersection_type = IntersectionType::Construction;
+            for id in i.turns.drain(..) {
+                self.turns.remove(&id).unwrap();
+                delete_turns.insert(id);
+            }
+        }
 
         self.edits = new_edits;
         self.pathfinder_dirty = true;
@@ -1087,6 +1112,9 @@ fn make_half_map(
             }
             continue;
         }
+        if i.is_closed() {
+            continue;
+        }
 
         if i.incoming_lanes.is_empty() || i.outgoing_lanes.is_empty() {
             timer.warn(format!("{:?} is orphaned!", i));