void BuildBridge(uint8 i)

    {

        switch ((TransportType)(this->type >> 15)) {

            case TRANSPORT_RAIL: _last_railbridge_type = this->bridges->Get(i)->index; break;

            case TRANSPORT_ROAD: _last_roadbridge_type = this->bridges->Get(i)->index; break;

            default: break;

        }

        // Alberth: It's hacky, but it ensures your bits are preserved (shifting 17 times in a value with width 8 is undefined behavior)

        uint32 w = _bridge_cur_road_subtype;

        w <<= 17;

        DoCommandP(this->end_tile, this->start_tile, this->type | this->bridges->Get(i)->index | w,

                    CMD_BUILD_BRIDGE | CMD_MSG(STR_ERROR_CAN_T_BUILD_BRIDGE_HERE), CcBuildBridge);

    }