diff --git a/src/sound.cpp b/src/sound.cpp
--- a/src/sound.cpp
+++ b/src/sound.cpp
@@ -152,7 +152,7 @@ static void StartSound(uint sound, int p
 }
 
 
-static const byte _vol_factor_by_zoom[] = {255, 190, 134, 87, 49};
+static const byte _vol_factor_by_zoom[] = {255, 190, 134, 87};
 assert_compile(lengthof(_vol_factor_by_zoom) == ZOOM_LVL_END);
 
 static const byte _sound_base_vol[] = {
diff --git a/src/texteff.cpp b/src/texteff.cpp
--- a/src/texteff.cpp
+++ b/src/texteff.cpp
@@ -353,7 +353,6 @@ void DrawTextEffects(DrawPixelInfo *dpi)
 
 		case ZOOM_LVL_OUT_4X:
 		case ZOOM_LVL_OUT_8X:
-		case ZOOM_LVL_OUT_16X:
 			break;
 
 		default: NOT_REACHED();
diff --git a/src/viewport.cpp b/src/viewport.cpp
--- a/src/viewport.cpp
+++ b/src/viewport.cpp
@@ -858,9 +858,6 @@ static void ViewportAddTownNames(DrawPix
 			}
 			break;
 
-		case ZOOM_LVL_OUT_16X:
-			break;
-
 		default: NOT_REACHED();
 	}
 }
@@ -931,9 +928,6 @@ static void ViewportAddStationNames(Draw
 			}
 			break;
 
-		case ZOOM_LVL_OUT_16X:
-			break;
-
 		default: NOT_REACHED();
 	}
 }
@@ -1004,9 +998,6 @@ static void ViewportAddSigns(DrawPixelIn
 			}
 			break;
 
-		case ZOOM_LVL_OUT_16X:
-			break;
-
 		default: NOT_REACHED();
 	}
 }
@@ -1077,9 +1068,6 @@ static void ViewportAddWaypoints(DrawPix
 			}
 			break;
 
-		case ZOOM_LVL_OUT_16X:
-			break;
-
 		default: NOT_REACHED();
 	}
 }
@@ -1581,9 +1569,6 @@ static bool CheckClickOnTown(const ViewP
 			}
 			break;
 
-		case ZOOM_LVL_OUT_16X:
-			break;
-
 		default: NOT_REACHED();
 	}
 
@@ -1642,9 +1627,6 @@ static bool CheckClickOnStation(const Vi
 			}
 			break;
 
-		case ZOOM_LVL_OUT_16X:
-			break;
-
 		default: NOT_REACHED();
 	}
 
@@ -1703,9 +1685,6 @@ static bool CheckClickOnSign(const ViewP
 			}
 			break;
 
-		case ZOOM_LVL_OUT_16X:
-			break;
-
 		default: NOT_REACHED();
 	}
 
@@ -1764,9 +1743,6 @@ static bool CheckClickOnWaypoint(const V
 			}
 			break;
 
-		case ZOOM_LVL_OUT_16X:
-			break;
-
 		default: NOT_REACHED();
 	}
 
diff --git a/src/zoom.hpp b/src/zoom.hpp
--- a/src/zoom.hpp
+++ b/src/zoom.hpp
@@ -11,7 +11,6 @@ enum ZoomLevel {
 	ZOOM_LVL_OUT_2X,
 	ZOOM_LVL_OUT_4X,
 	ZOOM_LVL_OUT_8X,
-	ZOOM_LVL_OUT_16X,
 	ZOOM_LVL_END,
 
 	/* Here we define in which zoom viewports are */
@@ -28,7 +27,7 @@ enum ZoomLevel {
 	ZOOM_LVL_DETAIL   = ZOOM_LVL_OUT_2X, ///< All zoomlevels below or equal to this, will result in details on the screen, like road-work, ...
 
 	ZOOM_LVL_MIN      = ZOOM_LVL_NORMAL,
-	ZOOM_LVL_MAX      = ZOOM_LVL_OUT_16X,
+	ZOOM_LVL_MAX      = ZOOM_LVL_OUT_8X,
 };
 
 extern ZoomLevel _saved_scrollpos_zoom;