diff --git a/src/ride/ride.c b/src/ride/ride.c
index a47baf3a6f..439e45b275 100644
--- a/src/ride/ride.c
+++ b/src/ride/ride.c
@@ -7659,7 +7659,7 @@ money32 place_ride_entrance_or_exit(sint16 x, sint16 y, sint16 z, uint8 directio
 			return MONEY32_UNDEFINED;
 		}
 
-		if (RCT2_GLOBAL(RCT2_ADDRESS_ELEMENT_LOCATION_COMPARED_TO_GROUND_AND_WATER, uint8) & (1 << 2)) {
+		if (RCT2_GLOBAL(RCT2_ADDRESS_ELEMENT_LOCATION_COMPARED_TO_GROUND_AND_WATER, uint8) & ELEMENT_IS_UNDERWATER) {
 			RCT2_GLOBAL(RCT2_ADDRESS_GAME_COMMAND_ERROR_TEXT, rct_string_id) = STR_RIDE_CANT_BUILD_THIS_UNDERWATER;
 			return MONEY32_UNDEFINED;
 		}
diff --git a/src/ride/track.c b/src/ride/track.c
index 3ef16ebc89..71f5bfbac6 100644
--- a/src/ride/track.c
+++ b/src/ride/track.c
@@ -3463,11 +3463,11 @@ money32 place_maze_design(uint8 flags, uint8 rideIndex, uint16 mazeEntry, sint16
 		}
 
 		uint8 elctgaw = RCT2_GLOBAL(RCT2_ADDRESS_ELEMENT_LOCATION_COMPARED_TO_GROUND_AND_WATER, uint8);
-		if (elctgaw & 4) {
+		if (elctgaw & ELEMENT_IS_UNDERWATER) {
 			RCT2_GLOBAL(RCT2_ADDRESS_GAME_COMMAND_ERROR_TEXT, rct_string_id) = STR_RIDE_CANT_BUILD_THIS_UNDERWATER;
 			return MONEY32_UNDEFINED;
 		}
-		if (elctgaw & 2) {
+		if (elctgaw & ELEMENT_IS_UNDERGROUND) {
 			RCT2_GLOBAL(RCT2_ADDRESS_GAME_COMMAND_ERROR_TEXT, rct_string_id) = STR_CAN_ONLY_BUILD_THIS_ABOVE_GROUND;
 			return MONEY32_UNDEFINED;
 		}
diff --git a/src/world/map.c b/src/world/map.c
index a4fed6445d..34bc807cb3 100644
--- a/src/world/map.c
+++ b/src/world/map.c
@@ -3560,7 +3560,7 @@ void game_command_place_large_scenery(int* eax, int* ebx, int* ecx, int* edx, in
 			return;
 		}
 
-		if ((RCT2_GLOBAL(RCT2_ADDRESS_ELEMENT_LOCATION_COMPARED_TO_GROUND_AND_WATER, uint8) & ELEMENT_IS_UNDERWATER) || (RCT2_GLOBAL(RCT2_ADDRESS_ELEMENT_LOCATION_COMPARED_TO_GROUND_AND_WATER, uint8) & 2)) {
+		if ((RCT2_GLOBAL(RCT2_ADDRESS_ELEMENT_LOCATION_COMPARED_TO_GROUND_AND_WATER, uint8) & ELEMENT_IS_UNDERWATER) || (RCT2_GLOBAL(RCT2_ADDRESS_ELEMENT_LOCATION_COMPARED_TO_GROUND_AND_WATER, uint8) & ELEMENT_IS_UNDERGROUND)) {
 			*ebx = MONEY32_UNDEFINED;
 			return;
 		}
@@ -3981,7 +3981,7 @@ int map_can_construct_with_clear_at(int x, int y, int zLow, int zHigh, void *cle
 		}
 		int water_height = ((map_element->properties.surface.terrain & MAP_ELEMENT_WATER_HEIGHT_MASK) * 2);
 		if (water_height && water_height > zLow && map_element->base_height < zHigh) {
-			RCT2_GLOBAL(RCT2_ADDRESS_ELEMENT_LOCATION_COMPARED_TO_GROUND_AND_WATER, uint8) |= 4;
+			RCT2_GLOBAL(RCT2_ADDRESS_ELEMENT_LOCATION_COMPARED_TO_GROUND_AND_WATER, uint8) |= ELEMENT_IS_UNDERWATER;
 			if (water_height < zHigh) {
 				goto loc_68BAE6;
 			}
@@ -3999,7 +3999,7 @@ int map_can_construct_with_clear_at(int x, int y, int zLow, int zHigh, void *cle
 		if ((bl & 0xF0) != 0xF0) {
 			if (map_element->base_height >= zHigh) {
 				// loc_68BA81
-				RCT2_GLOBAL(RCT2_ADDRESS_ELEMENT_LOCATION_COMPARED_TO_GROUND_AND_WATER, uint8) |= 2;
+				RCT2_GLOBAL(RCT2_ADDRESS_ELEMENT_LOCATION_COMPARED_TO_GROUND_AND_WATER, uint8) |= ELEMENT_IS_UNDERGROUND;
 				RCT2_GLOBAL(RCT2_ADDRESS_ELEMENT_LOCATION_COMPARED_TO_GROUND_AND_WATER, uint8) &= 0xFE;
 			} else {
 				int al = map_element->base_height;
diff --git a/src/world/map.h b/src/world/map.h
index b7607ec970..7e8f426545 100644
--- a/src/world/map.h
+++ b/src/world/map.h
@@ -208,7 +208,8 @@ enum {
 };
 
 enum {
-	ELEMENT_IS_UNDERWATER = 4,
+	ELEMENT_IS_UNDERGROUND = 1 << 1,
+	ELEMENT_IS_UNDERWATER = 1 << 2,
 };
 
 #define MAP_ELEMENT_QUADRANT_MASK 0xC0